{ "captured_by": "capture.mjs (Node, AI SDK 6 through the Vercel AI Gateway)", "note": "API answers, not the consumer apps. No system prompt, no account, no location set. Each prompt sent as the only user message.", "calls": 36, "errors": 0, "first_call_at": "2026-10-30T15:45:39.993Z", "last_call_at": "2026-10-30T15:48:43.526Z", "engines": [ { "id": "sonar", "label": "Perplexity Sonar API", "model": "perplexity/sonar", "search": "Perplexity built-in web search" }, { "id": "openai", "label": "OpenAI API, gpt-5-mini with the web search tool", "model": "openai/gpt-5-mini", "search": "OpenAI web_search tool" }, { "id": "gemini", "label": "Gemini API, gemini-2.5-flash with Google Search grounding", "model": "google/gemini-2.5-flash", "search": "Google Search grounding" } ], "prompts": [ "NSF Certified for Sport brands", "Which supplement brands are NSF Certified for Sport?", "What is the best NSF Certified for Sport protein powder?", "Best NSF Certified for Sport creatine for a drug-tested athlete", "Which pre-workout supplements are NSF Certified for Sport?", "What supplements are safe for drug-tested college athletes?" ], "results": [ { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "NSF Certified for Sport brands", "run": 1, "started_at": "2026-10-30T15:45:40.094Z", "finished_at": "2026-10-30T15:45:50.316Z", "text": "NSF Certified for Sport is a program that verifies that manufacturers and their products meet stringent independent certification process guidelines, including product testing for banned substances, formulation and label review, production facility and supplier inspections, and ongoing monitoring. This certification is recognized by major athletic organizations such as the NFL, NFL Players Association, MLB, MLB Players Association, PGA, LPGA, and Canadian Centre for Ethics in Sports.\n\nTo find NSF Certified for Sport products, you can visit the NSF Certified for Sport website and search by product, brand, or lot number, or use the Certified for Sport app, which offers enhanced search capabilities, side-by-side product comparisons, and a UPC barcode scanner. The app also allows you to compile lists of your preferred products or brands and receive notifications about certification updates.\n\nMany brands offer products that are NSF Certified for Sport. Some examples of brands with certified products include:\n* 10X Health\n* 1st Phorm\n* A SHOC® ENERGY\n* Abbott\n* AG1 (Athletic Greens)\n* ATHLEAN-RX\n* Bare Performance Nutrition\n* BioSteel\n* BodyHealth\n* BrainMD\n* BUBS Naturals\n* Bulk Supplements\n* C4\n* CELLUCOR\n* CELSIUS®\n* Charlotte's Web, Inc.\n* ChromaDex, Inc.\n* Core Med Science\n* dotFIT\n* DripDrop®\n* Elysium Health\n* Force Factor\n* Garden of Life\n* Gatorade\n* GHOST\n* Gnarly Nutrition\n* Herbalife\n* Klean Athlete\n* Ladder\n* Momentous\n* Muscle Milk\n* NOW®\n* Optimum Nutrition\n* Performix\n* Powerade\n* Puori\n* Red Bull\n* Transparent Labs\n* Vega\n* XTEND®\n\nThis list is not exhaustive, and the NSF website provides the most up-to-date and comprehensive directory of certified products and brands.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHf5f6VkJgfZ6_6wECWWf2W-rD-DWhiAwo_h6VKcI4lu91AwzQ2cBv3jLf1u5R8WrrzxYh-vDItjGhj2Ydw1ug4H7mMKWoM7Zg1EsrncgLnCmwCE9js5rcE9rGxWZre6MQt3b8aQFU5No1K5SV0eOe8cDRdy-vQeGqfAO0G1z6xUnxANeNfIAHM88gX", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEMvMkTsauKLwY6Cd9qLQkg7JBlhjocuuPk-XyWplL65_M-rFqnVGwCYxoYitKfUdv8BJzWMO6bu475SxRSOxrdqEx_IdPVUJnuo-XZ8uGCItGhkg--zwLnb7gUivZVDQLNlFWn6NVnF9gm6WJLuRblT1qYnPPIYwabYtlgH0FG_Pwe3E8Pbg==", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHT-Qm-frdhYjShbggbDKhJKTPNvHXhiPzsz7ftZ-3MGZ86AtsJY67_Sm6ainzizdrHVZttJMlCaDqXlbRQnmXt5e4WGRFvucTfAxs4wRxO7J3Y4LFoTxIKtec3V-yDAGI1uxZwFbXYfBw1FUzC8wpLzKrXhctI7EVqw2hXTrStgWwgXg9Pe7O5ON0t15GyLa2AHEk=", "title": "livemomentous.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGoYJGb5eEsl4T3NS8MihejLpI1FKasbKl28iROIW-_nM3Pt3D5xppWAMbxgElVMY3SNoqBdvU1OX-cm71p8IVTRmIz9FmcUAfQTQkD_9rcU369IjXoi-iqDgET2M48FksygJvSofw2", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEuRn4R1FnxsBsctlCo8Ug206P_ZnyYf-HJMraHwk2qZ12ReZYtZuI27RbAc_CmZyzD-u5rIYa3mH85wa9lBsgGlqy-UEMrI6td341seMZqrolJ-VwmzbVnKZ5Kej9u5wR9uDUYvm3yvBaI4mUwwb2QRh3xivEYvuy75HPu9SY=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQF7kBTZY2mxJAK1bp0Dn7VN3CKkqzlHdFtuUqw5U5pNdY8oqlnpXB5Qiae_-v19o83XauOvitcJ8dEdWPoue2uD7LYBYurCBnkx9ZskPluqAxJsLnRCLKSzS-0IWtPMrUmz6o0DOIdnSIhmD1l00z3K9kC8g2HkcLiX", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHDKNtpnxV3FnhOtlqUTb0CJh-fQqVPW92U84UoWTQ98xdzfEahzgy3JtpzPiLE8KncMq5-yy9vN_3W6n0DGgPyEwi1cE8e-au6YcCKzXiT01WqfEIlfSUNhgzQ-OJLyNcSgJjgl9py7jC8Qsd6qQaa9p5EZk9TUrQlKshaB-2SYhLxCTHVJwXYR87PypP0m9n7S_CZtOp1LLE89jIakQ==", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEaY-KIKxj-zNYuOZvFeGOxqr5mDP2Ch5GvQjf8QAaTn3pc4bu_PsF_-BgHzQwV-OFC79ltkaEALMX_ugyhURBpACEdJKZl18TNFkKw0CVFi5vjnTPa7znB2bDmQWzE04a-W9NOS_V6-AEzAEWUv7_S_dvWnkPnWgu9QndKklnN-d5zy9paqzmzI47y", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQE102uX2dIesUHiPwyIy6NdjBimh2EOoiFDm-f9FIOWUcKaPK5JLC3-_FwlozHPqSBlR7X9Z6RqivFnz1h6SZfuGcwoLHNBP82sUTJSDDn99Jf0hCda2qmcQZBdnFyxDipgQzveImog8v8Kf54Fx8s9yWhUP-R-dDPew3crAolWdzDQmS3GMvKZkaaMdP8yac7q", "title": "nsfsport.com" } ], "search_queries": [ "NSF Certified for Sport brands list", "how to find NSF Certified for Sport products" ], "usage": { "input": 6, "output": 844 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "NSF Certified for Sport brands", "run": 2, "started_at": "2026-10-30T15:46:42.449Z", "finished_at": "2026-10-30T15:46:50.206Z", "text": "The NSF Certified for Sport program certifies various brands and their products to ensure they are free of banned substances and harmful contaminants. This certification is recognized by major sports organizations like the NFL, MLB, NHL, PGA, LPGA, and USADA, among others.\n\nYou can find a comprehensive list of certified brands and products by utilizing the NSF Certified for Sport online directory or by downloading their mobile app. The app offers features like enhanced search, product comparisons, and a UPC barcode scanner for lot-by-lot tested supplements.\n\nSome of the brands that have NSF Certified for Sport products include:\n* 10X Health\n* 1st Phorm\n* A SHOC® ENERGY\n* Abbott\n* AG1 (Athletic Greens)\n* ATHLEAN-RX\n* Bare Performance Nutrition\n* BioSteel\n* BODYARMOR\n* BUBS Naturals\n* BULK SUPPLEMENTS\n* C4®/CELLUCOR\n* CELSIUS®\n* Charlotte's Web, Inc.\n* Cheribundi\n* dotFIT\n* Force Factor\n* Garden of Life\n* Gatorade\n* GHOST\n* Gnarly Nutrition\n* Herbalife24\n* IM8 Health\n* Klean Athlete\n* Ladder\n* Momentous\n* Monster Energy\n* Muscle Milk\n* Thorne Sport\n* ZOA+ Powder\n\nThis list is not exhaustive, and the NSF database is regularly updated with new certified products and brands.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGZVB4M2HUldl5Ms1N0gL0ka5dLzJ_W7XsQ-IAqoiB4L0MAm9chqFedRcFbmaGzD86DhtQo64-XJQBbwo_PhNmcG2_40QfVjV4deYNrGNez0KKgC99WLWcgEiao0TprLij48Zb9kk4moqn7ubEl23hrF1f8owdWo6TvcS0pYPjbh26g9-IdQQ==", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHINiGfeeickGOecoN9de7OCDZ4pdx3Bf5TNaYCWEhxQzytA8z5qBKXPueIQ4kI8QmlBtaeCJhMkA3n0T0EgAhPrBhwKf2GpcsJUq6XlOVZSZpHQOo=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQF-idLEgIPqb9qq9nHHSiFcU5WqLRsurUEdItykOiVDvI6AGPJKrtq8Zl8a65Fia9Ukzac7RjfO7ePqnpMVbfW8CcVKsuekIX42LZ9v0OiD8r1bhe6C7Pk2XNgzrFz3iRFO3c4I1-JC", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFEcTaKrVYPx1jAfUuqkWQrcl0Igy217CEz8O-tpdlaAYuNHJhiPMlvtNBotk1c3yFw4uQMaiPE4dUryYqFMN4c8PvedLkMoTWh2Lkv1SxI3QsmddDRzN2RVFBNjHfOGYqidbD3tH-HX89E4d83V3-M0hR2y2OmJiQF", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHs1imoGdre17my1aTABU1_6_ULYXOMmF2irel_ltqyBYnbhqeQtQXFHCgSyLjUH8wRoJmM0Qzufa54simyPHCNGo8SU2VXJZqQrxT7A9rMOgVYD1MD8IW2eqjZuwtyd9_XwSOksX4ssr_l9XzwAhOjHsEY8zUcsVhPqkBBbTmYv1U9858vgS8wMdpAjgQnhU57-vQ2wKx6NkkJx3nRfw==", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFhaeBtjRr-EJAA4mxbHTt5ChSAHmHySQfcrdGMmKJF-To1hc6WSDzm2l3KAGJ3E7kCOO6kWNJzojRpqlqUht1p9AWrEahvimjqwUVbNR9iwijMfAkXiv-SQNTMPOzn44R0VSXeXnmb-wjLp0Nq9rXdkYqOM8qleQ_1GecQSRfIZSUYXgUeF1ainzmG", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQG2hKI6WEFr4aggbAPgBjJp7rIoH9d3obEusUD6IcKcgmpGkNxTbvRo4yTJ_d09rUXf-ZYCcRPX2WQzBGv1rYtSQICNssrqH8exmw1EDF64qoonMiDAczh0GIDU0i0E3hCkL05vJizgnZsi5WfXrTot9XJtMhJitpoME-rWkGem4r9Ttj0XUPsmkPdruUm_K7Jr", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEaRjaE0kimE65SFNSxrketyVICML6gxqHCNK0k5N8kHcpdBSLaMDHu41jY1DrYuIZrCVJ8E3qaO5ZDu1WuAp9koh9JFjEx9GqPUaSNCcexCP876Q0q06r8uUxEWFTshL2eOQS0HDLj9hh-4IATB1k2", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFX-ngTdu5D2LpvbTCJw2WRsrLX62yWgRArVHI6ejsy85w2MjjeS_BSjBaW20gfcQBE1pStOPy2VejDIDP6eQXVuVTh__NivC9r3Ob1ozrHR-Nyr5P1nzRr0cDMyB4mTGODRDU=", "title": "nsfsport.com" } ], "search_queries": [ "NSF Certified for Sport brands list", "NSF Certified for Sport directory" ], "usage": { "input": 6, "output": 641 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "NSF Certified for Sport brands", "run": 1, "started_at": "2026-10-30T15:45:40.093Z", "finished_at": "2026-10-30T15:45:54.875Z", "text": "Do you want a full, up‑to‑date list of brands that are currently NSF Certified for Sport (I can pull the current database), or do you want examples and/or instructions on how to verify a specific product yourself?", "sources": [], "search_queries": [ "NSF Certified for Sport list of brands" ], "usage": { "input": 8937, "output": 627 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "NSF Certified for Sport brands", "run": 2, "started_at": "2026-10-30T15:46:35.431Z", "finished_at": "2026-10-30T15:46:42.449Z", "text": "Do you mean the companies/brands whose products are currently listed as \"NSF Certified for Sport\"? Or do you want something else (e.g., what the program covers, how to check a specific product, or brands in a specific category)?\n\nIf you want the current list of brands/products, I can look up and pull the up‑to‑date roster from NSF’s database — would you like me to do that now, and do you want every brand or a filtered list (e.g., popular supplement brands, protein powders, sports drinks)?", "sources": [], "search_queries": [], "usage": { "input": 4448, "output": 427 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "NSF Certified for Sport brands", "run": 1, "started_at": "2026-10-30T15:45:39.993Z", "finished_at": "2026-10-30T15:45:45.573Z", "text": "NSF Certified for Sport is a **product-by-product certification**, not a blanket approval of every item a brand sells. The official NSF directory currently lists certified products from brands including **1st Phorm, AG1 (Athletic Greens), Bare Performance Nutrition, BioSteel, BODYARMOR, C4, Designs for Sport, Gatorade, Herbalife24, Klean Athlete, and Thorne**.[1][3][4][6][7][10]\n\nThe list is broader than these examples and changes over time. Check the [NSF Certified for Sport directory] for the **specific product**—and, where applicable, its lot number—before buying or using it.[1]", "sources": [ { "url": "https://www.nsfsport.com/", "title": "Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1240091", "title": "Official Certified for Sport® Product Certification Listing ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=&type=Vitamin&brand=", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal&type=Electrolyte&brand", "title": "Read more" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1691291", "title": "AG1® - Athletic Greens - NSF Certified for Sport" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements&goal=&type=&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1205063", "title": "Thorne Magnesium Bisglycinate" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=&type=Caffeine&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=Pre-Workout&type=&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1600879", "title": "Klean Multi - NSF Certified for Sport" } ], "search_queries": [], "usage": { "input": 4893, "output": 145 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "NSF Certified for Sport brands", "run": 2, "started_at": "2026-10-30T15:46:32.411Z", "finished_at": "2026-10-30T15:46:35.430Z", "text": "NSF Certified for Sport covers **individual products—not brands as a whole**. Examples of brands with products currently listed include 1st Phorm, AG1 (Athletic Greens), Bare Performance Nutrition, BioSteel, BODYARMOR, C4, Designs for Sport, Gatorade, Herbalife24, Klean Athlete, Thorne, and ZOA+.[1][3][4][6][7][10]\n\nThe list is broad and changes over time, so check the official NSF directory for the **specific product** you’re considering; certification can vary by product and, in some cases, lot number.[1][2]", "sources": [ { "url": "https://www.nsfsport.com/", "title": "Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1240091", "title": "Official Certified for Sport® Product Certification Listing ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=&type=Vitamin&brand=", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal&type=Electrolyte&brand", "title": "Read more" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1691291", "title": "AG1® - Athletic Greens - NSF Certified for Sport" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements&goal=&type=&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1205063", "title": "Thorne Magnesium Bisglycinate" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=&type=Caffeine&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=Pre-Workout&type=&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1600879", "title": "Klean Multi - NSF Certified for Sport" } ], "search_queries": [], "usage": { "input": 4893, "output": 134 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "Which supplement brands are NSF Certified for Sport?", "run": 1, "started_at": "2026-10-30T15:45:45.622Z", "finished_at": "2026-10-30T15:45:57.039Z", "text": "Many supplement brands have received NSF Certified for Sport certification, which signifies that their products have been tested for banned substances and meet rigorous quality standards. This certification is recognized by major athletic organizations including the United States Anti-Doping Agency (USADA), Major League Baseball (MLB), the National Hockey League (NHL), and the National Football League (NFL).\n\nSome of the brands that are NSF Certified for Sport include:\n* 10X Health\n* 1st Phorm\n* AG1 (Athletic Greens)\n* AER\n* Bare Performance Nutrition\n* BioEmblem\n* BIOptimizers\n* BioSteel\n* BrainMD\n* BUBS Naturals\n* BULK SUPPLEMENTS\n* cbdMD\n* Cheribundi\n* Designs For Sport\n* dotFIT\n* Elysium Health\n* Force Factor\n* Heart & Soil\n* Herbalife (including Herbalife 24™)\n* Just Ingredients Inc.\n* Ketone-IQ\n* Klean Athlete\n* Ladder\n* Liquid IV\n* Momentous\n* Muscle Milk\n* NOW® Sports\n* Optimum Nutrition\n* Performance Lab\n* Pure Encapsulations\n* SwissRX\n* The Feed Lab\n* Thorne\n* Transparent Labs\n\nFor a comprehensive and up-to-date list, consumers can utilize NSF's online database or download the Certified for Sport® app, which offers search capabilities, product comparisons, and a barcode scanner. The NSF certification process includes product testing for banned substances, formulation and label review, and inspections of production facilities and suppliers.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQG4sR2LqVgTZOLXyHEjR4e-Cr4QFhwKM_k6uSaDdZhWoM9Q4iOltICdtMR2YF1CLv1Uc0kegM8G6RvetabKEY2qNKLjpIiod9micg1ks_P4L5kB1NJDcdEDRRBMSrvGeIXASVwxSz2LM1BI0kG4KGxvCw-udA0RU79QCm-Jac_ImOAbZgVHKXZK2lAL2Iuc-pVuLu5VwTreA9YkeR_bSbMkAx8AkgjBpAcwiPtl0M_2yg==", "title": "usada.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHw_VgJ8CVqzdznJH5kFo00WjHRFchLBWo2iyMlRoS5KMb2z0FLNqdUhQFVFbnxQ01gkO_xh2CR48pO5A2UJeRqC06m0c1cs-8NHUMhgmsF4pD3XbM=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGKINVyiNJFNJc94bRYpQHxR8wQlgEB3bQlq-8MARv0wOQca9FaIVA26cNCFXQrhAnKjRvF83TqjNUGTnKX5nyvm3Zsk7inntj9IyqpaeVEfvwblL3laJue0F1bc94bwAp6NO--nNLKTadALUCIPMDpC_4htzVyYTx5gMBfRL2BoC-Mx1w5TNBLTnzGrkKs_-zzaJc=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFMFQ-J5zpdRjIPWqCBZpiK9fCC6U0AFIYi_dOEku6kCMo7ZQU2wXs11Tdge4L4gcV6yrgLt25zMYeysNJlp9rd-YOhKgYYUu_u0USeNRzkjoP7NIyjKUUlNF-z9MwOhEnga0VYPzO2Z_C0SZXhk6f3tXK4SqrvtNqBj9GCNnuCIastsTifCY-ieCmeam7re1NX", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEjs_7TongnZEkoADbnRLv_IfvU9OOdg_mQWPAHDc3qxhW8XYpl3hE3k9w1FKN5GJuzIk5hLJ-JDsxqT1UAUlAvcqGchZh0wqAYF_ZV7wPqP4DwNpaeMjARQjM1UQO38u1okuW8FAc31hlMqC8vi2bueBbZKjryXc1N5OI7-LOHgcnu0UXVam9j9nyByooAYnPyIuu4V2iyWw8cldrN7A==", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHmhIixI3anyQttF3M8fh8ibX_64-o2cie4VTkDs-fkm0MaOgHcz-Lp0v5WlDGAF7_cmJBN0a7p1BUYwxb9554g7Exymwu7Uk3iEnDgARu5XPexzX6xx3r-Ac6wOxinEBPSMnpBCuzfBEOXhidsMOshHyozFAhZEaF_", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFFR6jJWld2_w_dSkvinBZNsAJFIEqERxm4sm3YkN1HdXkISk63Rf-a68EklxK2y0zKmnWQQ52NgXpi1QVb_axJHr8xA-nEjS7GxNjl0xsVBl-5N4sUGzMVdqKSPbHX3iRnCWSZHjg=", "title": "thefeed.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFWmo1OHLeBFtzx_NMaIJ93CEPkjOSPL0lc6-4lNIH4zlUQqiMSiAc_NZDJbAISyYqCR1-SxkvhJs-plJBfEJdvrde07tCU9N0QMXNvgDMvAPNAXc-aoRzyw1rktsnJbHrJL7gQpc_N_ZrwopvfUE4Tg5HEzPCmObt3jzkO9aao_6ccYO58AA==", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQF37Gdn5X246CMsJ3eS3JJPs9asfzecKZdQBgb1D3sxYSBVQn52Zck7fbRCOReV96Xg_OuBC7wj1fVcDs-tphyPgXU0dpK1uj2XXYe9Z955JL2inChf83-d4xfnnRI9xiueiWV7mCvt", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQE0okB5GjRW5d_ippD_MSfMxyxz3hg0rOLheLuLkz_4lGI1H-vcoAN1m6AU5RkqFWCYHwNtTYoQ0eCADdCVxSmrRaeqOi0_14bIckyzdPB-O8kt2XVK6jEyOliHncMmq_GLMIGhGqjJwrFGwr_wIIcn_hQSZIHUbVfZNAHsSO8=", "title": "nsfsport.com" } ], "search_queries": [ "NSF Certified for Sport supplement brands list", "NSF Certified for Sport database" ], "usage": { "input": 9, "output": 950 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "Which supplement brands are NSF Certified for Sport?", "run": 2, "started_at": "2026-10-30T15:46:50.206Z", "finished_at": "2026-10-30T15:47:01.028Z", "text": "NSF Certified for Sport is a program that certifies dietary supplements to be free from substances banned by major sporting organizations, ensuring product quality and safety through rigorous testing and evaluation. This certification involves thorough review of product formulation, labeling, and manufacturing processes, along with laboratory testing for banned substances and contaminants.\n\nNumerous supplement brands have products that are NSF Certified for Sport. These include, but are not limited to, the following brands:\n\n* 10X Health\n* 1st Phorm\n* A.C. Grace\n* Abbott\n* Acid Rain Water\n* AER\n* AG1 (Athletic Greens)\n* Atrantil\n* Ayush Herbs\n* Bare Performance Nutrition\n* BergaMet\n* BioEmblem\n* Biocidin Botanicals\n* Biogena\n* BIOptimizers\n* BioSteel\n* BLACKLABEL Supplements\n* BODYARMOR\n* BrainMD\n* BUBS Naturals\n* BULK SUPPLEMENTS\n* C4\n* cbdMD\n* Cheribundi\n* CodeAge\n* CON-CRĒT®\n* Designs For Sport\n* dotFIT\n* Dream Shot\n* DryWater®\n* Ecological Formulas\n* Elysium Health\n* Endurance Products\n* Enduraphin, Inc.\n* EyePromise®\n* Force Factor\n* Garden of Life Sport\n* Guna\n* H2Tab\n* Heart & Soil\n* Herbaland Naturals Inc.\n* Herbalife\n* HumanN\n* Impossible Foods\n* Juice Plus\n* Just Ingredients Inc.\n* Ketone-IQ\n* Klean Athlete\n* Ladder\n* Liquid IV\n* Liv Pur LLC\n* Momentous\n* Muscle Milk\n* Nordic Naturals\n* Nutrasal\n* Nutritional Frontiers\n* Quality of Life Labs\n* Ritual\n* Rx Vitamins\n* Sun Chlorella USA\n* SwissRX\n* The Feed Lab\n* Thorne Research\n* Thyroid Specific Formulations\n* True Botanica\n* U.S. Enzymes\n* Vitanica\n* Xymogen\n\nThis certification is recommended by various sports organizations, including the NFL, PGA, LPGA, and MLB, with some leagues even permitting only NSF Certified for Sport products to be provided to their athletes. To find the most up-to-date and comprehensive list of certified products and brands, consumers can check NSF's online database or use their Certified for Sport® app.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFpWUaNF3ZF3iewRVzF9MSApFoBseQ-E5YG2cDQLtj1_ymy0nYulEHcf8KrQg_zLuWyJAg5y9IfcSNo833-VGolGBokTXzDpF7VTkSgxgvDzAPB3in2I8SBlPyleRGRHFzknO69q8JKX8bnQETPbCYoKDbbjrGraFeFW-c4XyGWDZNfrZyP0GUGpzRpyigCRpn5krdzNbYtX5RMKW7KY7tQjI6G5scjcGWc7GipTQ==", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGA-pa_IG1qROSB8h0Xbv9Oxi1yiqY_iu4d8DC8pna4mtI-1W7gWcdcx5VkDQuw9nJjBLvEz-0OTSpW_DDEQjZj52z851SnRQNPic80LoXEqawaUPM2L-KdBJAW6JHidxYk3ZUdkKE2-smOHisavT7QMMEKsSYu4ZDGZ6aHXoQzpoxyxyxJ_A==", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGAlKFCjotEH9ncHhj531tx3fLLqcSkIdqsWNVLiZ_ngmN5SahAblia6olXnSUYqIXVn62lkgkLcUT_rzpcrOEp9xESlAZH9Es7SsU8lmKiQb7PUFwqDhx89a_r70iY3y1ohqTqPvCZog7yp93CSLiSOaDiiCq1J4IdKGlmwzmhkH9X2Ooh2eL7JUqcrYgi3XwdeOc=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQF_dzTdqVlh84bx-zR27AwQsZyUVP5FghZfRk1vfnlwOZE2UXd_1bHDofU_nQBAcLYH4OfEeGkBKHfCOhGivEuw5wwW7mxZMKhWC-sC7wEQYccXsZPxRAe6w24l6S8gl2DFFHoEFKi92u4Yl5qay3QyVap-FuOjj_cu3w_-iaiPkRqREHU2AdNKxXfIC1vJ3G9d", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEldJFVIxgtXnyG3Xv_JmuOM13Qb22a-5CpUkkE1bRpSXGURcPDZaPDQxtSjiRcXQzT_HAqbLk8VhK3ZDPerLFTUiarX-KYwCR1pWIiyBhtB1RbpRTw5mJBv6UcxYpO-UWoiOlwt8oYnRpP7_mlcr0PWuyhMundaiGI", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFa2KvwSljLt29s1ZKMoyVQ7JG2zxk0y0VWHREydcmD6JldTxGlAN0HcJydy4XTNvbqfsRUfbKkrVJzo3oer3Oe29i1tUvGuuGv56OqHUZM5nTLws26yXrO0pyBEu0dL9S0NZcZdGvBs4f5I3jij8P4KwmZ9N5Rx-gNd7jcLve6rr5JO52b-vJqzN82ULLPuqdijITfzA1ED3i4bIJMJw==", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGpR2vVPdWN-tcOSVDYIfDzZE9KJEWSfzzYYRrdwWaV2X7YZmBpjuzn86-qzZhfhBQCHtAFoUbyh1ZHil-EBK-5DTaO4DjEWN8wvjofy22zf3AGW14A5JfJ3w2ti8xWfa9nf8ZDgYx3toKv1KgN72a50lF6S6u7Aih8om0oGlYVvqRFVP82EwVlOxC034tcGTxpxQ==", "title": "blueskyvitamin.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEr_Fnn6_XStE-qyz6zGdz3xj1J0TDPyQFGt1N1Y8NBSvXA0dS0LecAMbaMFmuiBo8pGa0rbDnmrV2J4xGd1OGzZ-ITuasYtO8UEOgOYy13WtZnrCMQNKuXa0WclVfJvA7WZssgBlo=", "title": "thefeed.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGJ0Ss4SAgbHCXZ2jaJcSIuM2lDAsNh0x4VvC2CbHymz4u8G3ZPeC5USURYBMxy-4QJeCPXTQUESjR0shDPxPVBUBxCyjuX6arQEoGpJbll7h_LwYx4W3ZZ3laggW4MlnGA_rsdWuCDHROK01vZj9vsRetUlWU=", "title": "healf.com" } ], "search_queries": [ "NSF Certified for Sport supplement brands list", "NSF Certified for Sport brands" ], "usage": { "input": 9, "output": 1353 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "Which supplement brands are NSF Certified for Sport?", "run": 1, "started_at": "2026-10-30T15:45:45.574Z", "finished_at": "2026-10-30T15:46:21.969Z", "text": "Short answer: NSF’s “Certified for Sport” program certifies specific products (and often specific lot numbers) — not whole brands automatically — so the most reliable way to know if a supplement is Certified for Sport is to check NSF’s online Certified for Sport database or app. ([nsf.org](https://www.nsf.org/consumer-resources/articles/certified-for-sport-program?utm_source=openai))\n\nIf you want examples of well‑known companies that currently have one or more products listed as NSF Certified for Sport, here are several (each has at least one product or product line in NSF’s directory): AG1 (Athletic Greens), Thorne, Momentous, Klean Athlete, Nutrabolt (C4 / CELLUCOR), Vital Proteins, and CELSIUS. ([info.nsf.org](https://info.nsf.org/Certified/BannedSub/Listings.asp?Company=C0368578&Standard=306&utm_source=openai))\n\nWhat I recommend\n- If you want a complete, current list: I can pull the full NSF Certified for Sport product/brand list now from NSF’s database and give you either (a) a downloadable list of brands that have at least one certified product, or (b) the full product-level listing (this can be long). ([nsfsport-prod.nsf.org](https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai))\n- If you have specific brands or products in mind, tell me which ones and I’ll check NSF’s database for current certification status (including product names and — where available — certified lot numbers). ([nsfsport-prod.nsf.org](https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai))\n\nWhich would you prefer?", "sources": [ { "url": "https://www.nsf.org/consumer-resources/articles/certified-for-sport-program?utm_source=openai", "title": "Certified for Sport® Program | NSF" }, { "url": "https://info.nsf.org/Certified/BannedSub/Listings.asp?Company=C0368578&Standard=306&utm_source=openai", "title": "Listing Category Search Page | NSF International" }, { "url": "https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai", "title": "Certified Products Search | NSF International Certified for Sport®" }, { "url": "https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai", "title": "Certified Products Search | NSF International Certified for Sport®" } ], "search_queries": [ "NSF Certified for Sport directory list of brands", "AG1 NSF Certified for Sport site:nsf.org", "Gatorade NSF Certified for Sport site:nsf.org" ], "usage": { "input": 17780, "output": 1816 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "Which supplement brands are NSF Certified for Sport?", "run": 2, "started_at": "2026-10-30T15:46:48.316Z", "finished_at": "2026-10-30T15:46:54.722Z", "text": "Do you want a complete, up‑to‑date list of every brand that has at least one NSF Certified for Sport product, or just well‑known/popular brands? I can fetch the current official list from NSF and show brands (with counts/links) if you want — shall I do that?", "sources": [], "search_queries": [], "usage": { "input": 4451, "output": 344 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "Which supplement brands are NSF Certified for Sport?", "run": 1, "started_at": "2026-10-30T15:45:40.095Z", "finished_at": "2026-10-30T15:45:45.622Z", "text": "NSF Certified for Sport applies to **specific products, not an entire brand**. The current NSF directory lists certified products from brands including:\n\n- 1st Phorm\n- AG1 / Athletic Greens\n- ATHLEAN-RX\n- Bare Performance Nutrition\n- BioSteel\n- CELSIUS\n- Designs for Sport\n- dotFIT\n- Gatorade\n- Herbalife24\n- IM8\n- Momentous\n- Nordic Naturals\n- Thorne\n- Vega[1][4][5][6][8]\n\nThis is a partial list, and certifications can change. Check the NSF directory for the exact product you plan to buy; a brand’s other products may not be certified.[1][8]", "sources": [ { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=&type=Vitamin&brand=", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nordic.com/nsf-sport-certified/", "title": "NSF Sport Certified Supplements & Vitamins for Athletes" }, { "url": "https://www.bscg.org/blogs/single/which-companies-offer-third-party-tested-supplements", "title": "Which Companies Offer Third-Party Tested Supplements? - BSCG" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements&goal=&type=Protein&brand=", "title": "Search Results - NSF Certified for Sport" }, { "url": "https://www.nsf.org/knowledge-library/david-beckham-co-founded-supplements-brand-im8-earns-nsf-certified-for-sport", "title": "David Beckham Co-Founded Supplements Brand IM8 ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements&goal=&type=&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/index.php", "title": "Home" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/news-resources/", "title": "News & Resources" }, { "url": "https://info.nsf.org/Certified/Dietary/Listings.asp", "title": "Listing Category Search Page | NSF International" } ], "search_queries": [], "usage": { "input": 6286, "output": 153 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "Which supplement brands are NSF Certified for Sport?", "run": 2, "started_at": "2026-10-30T15:46:45.179Z", "finished_at": "2026-10-30T15:46:48.316Z", "text": "NSF Certified for Sport certifies **individual products, not whole brands**. Its current directory includes certified products from brands such as **1st Phorm, AG1 (Athletic Greens), ATHLEAN-RX, Bare Performance Nutrition, BioSteel, CELSIUS, Designs for Sport, dotFIT, Gatorade, Herbalife24, IM8, Momentous, Nordic Naturals, Thorne, and Vega**.[1][4][6][8]\n\nThe list is broader than these examples and changes over time. Check the NSF directory for the **specific product** before buying or using it; a brand’s other products may not be certified.[1][6]", "sources": [ { "url": "https://www.nsfsport.com/certified-products/search-results.php?goal=&type=Vitamin&brand=", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nordic.com/nsf-sport-certified/", "title": "NSF Sport Certified Supplements & Vitamins for Athletes" }, { "url": "https://www.bscg.org/blogs/single/which-companies-offer-third-party-tested-supplements", "title": "Which Companies Offer Third-Party Tested Supplements? - BSCG" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements&goal=&type=Protein&brand=", "title": "Search Results - NSF Certified for Sport" }, { "url": "https://www.nsf.org/knowledge-library/david-beckham-co-founded-supplements-brand-im8-earns-nsf-certified-for-sport", "title": "David Beckham Co-Founded Supplements Brand IM8 ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements&goal=&type=&brand=", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/index.php", "title": "Home" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.nsfsport.com/news-resources/", "title": "News & Resources" }, { "url": "https://info.nsf.org/Certified/Dietary/Listings.asp", "title": "Listing Category Search Page | NSF International" } ], "search_queries": [], "usage": { "input": 6286, "output": 141 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "What is the best NSF Certified for Sport protein powder?", "run": 1, "started_at": "2026-10-30T15:45:54.875Z", "finished_at": "2026-10-30T15:46:05.101Z", "text": "Choosing the \"best\" NSF Certified for Sport protein powder depends largely on individual dietary needs, preferences, and fitness goals. However, several products consistently receive high ratings for their quality, ingredient transparency, and performance. NSF Certified for Sport is a crucial certification for athletes, as it ensures products are tested for banned substances and verifies that what's on the label is actually in the product.\n\nHere are some of the top NSF Certified for Sport protein powders, categorized by their key characteristics:\n\n**Overall Highly-Rated Options:**\n* **Momentous Whey Protein Isolate Vanilla** is frequently cited as a top choice, offering 20g of protein in 90 calories. It is also NSF Certified for Sport.\n* **Optimum Nutrition Gold Standard Whey Protein** is a blend of whey protein isolate, concentrate, and peptides, praised for its clean ingredients, mixability, and taste. It is both NSF and Informed Choice certified.\n* **Transparent Labs Grass-Fed Whey Protein Isolate** is another top recommendation for athletes.\n\n**For Specific Needs:**\n\n* **For Plant-Based Diets:**\n * **Momentous 100% Plant Protein Powder** combines pea and brown rice protein for a complete amino acid profile, and it is NSF Certified for Sport. Reviewers appreciate its smooth texture and flavor options.\n * **Garden of Life SPORT Organic Plant-Based Protein** is an organic option with a complete amino acid profile, also holding NSF and Informed Choice certifications.\n * **Ritual Essential Protein** is a plant-based option made from organic pea protein, formulated to support muscle and brain health, and is NSF Sport certified.\n\n* **For Whey Protein:**\n * **Gnarly Grass-Fed Whey Protein** is noted for being third-party tested and NSF Certified for Sport, with a smooth texture and added probiotics and digestive enzymes.\n * **Thorne Whey Protein Isolate** is recognized for its high manufacturing standards, absence of artificial sweeteners, and minimal additives, providing about 21g of protein per serving. It's often recommended for athletes with ingredient sensitivities.\n * **NOW Sports Whey Protein Isolate, Unflavored Powder** is an excellent unflavored option containing only whey protein isolate and sunflower lecithin, and it is Informed Sport certified.\n\n* **With Collagen:**\n * **Bubs Naturals Collagen Peptides** provides 20g of hydrolyzed collagen per serving, is tasteless, dissolves easily, and is NSF Certified for Sport. While beneficial for beauty and joints, it's not a complete protein source as it lacks tryptophan.\n * **Vital Proteins Collagen Peptides (Unflavored)** is also NSF Certified for Sport, easily dissolving in beverages with no flavor or aftertaste.\n\n* **Value-Oriented Options:**\n * **Bare Performance Nutrition (BPN) Whey Protein+** offers approximately 25g of protein per serving at a competitive price point, with NSF Certified for Sport status.\n * **Muscle Milk 100% Whey Protein** is considered a good budget option, meeting NSF criteria for clean ingredients at a lower cost.\n\n* **Other Notable Mentions:**\n * **Klean Athlete Klean Isolate** is an unflavored whey protein isolate with minimal ingredients, providing around 20g of protein per serving, and is built around NSF Certified for Sport compliance.\n * **1st Phorm's Phormula-1 Clear** offers 22 grams of protein per serving in a clear, juice-like form, without carbs, fat, or sugar, and is NSF Certified for Sport.\n\nWhen choosing a protein powder, consider the protein source (whey, casein, or plant-based), the presence of additional beneficial ingredients like probiotics, taste preferences, mixability, and any dietary restrictions or sensitivities you may have. The NSF Certified for Sport label provides assurance regarding product purity and safety, which is especially important for competitive athletes.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHoQMiF23DYRHFPsHeUDZ0zzWCm9e0duyBfTt65YveY3wMJA5eS1J9g1WqNbZY-qIIJJXwYsg_jRulWBFoIgzYP5PyADwMA23pceRJxiL8jb9a5pksFnqVfu6Bzm9-IeryOOz7fuJ7IPkENEMS4CPiZPPbNzy_3f1blM0o1B3ND", "title": "muscleformulas.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHp_K7er-UBrOlGQkDjnPIGOGzWrVi1lf_dQN-hxPpE4fLplllM8Nsp72K2QDVgdXaK5qx10b_ZIiFbqOD7E2B6X8zuEQbFW7M01EWVSkv1-fStciD4YL_0dJ5R5VN5ZB4sO5h50y48Kut2VacfLOLdhiI1cIPAXM-foU9zbQ04Kx6T90ghV7DBNJ9EYhNjBan6hZU=", "title": "livemomentous.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGskRqy51fxme9aliOD9i1SMC3QonMA-RIJ3wgamq2kukHKWne7mYvJFT0fHBJ72ZHzoSO5igK0g5tSIdx7nyt407ubJv1hC6QVJlLPJBQRM2jbPkzq58saJOxng30-S2XvzhmEu4pcpfyVwbU11kYd0lZFpRx4aoBpIuGn-vStU1w=", "title": "fitnessvolt.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFVfeQoq5lx0_AT47Trj-NLeX5kPa-pAbGvRNWmSOL0kDqhqjoiaz5mPJOaY1wxoY2ZG6N8-Dsm0fnDxzpJxKwu9ii-xG9xsN3OHFtieMDfRTiluRnKs6cUbbspCnBSlHQyRHPxVnR4_Bf6YTYU_oQV", "title": "healthline.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHEso7wBgmvRk9BgvwsuugvP0fUKsab5kTP_e2asFkhOlVemDXNevkJTi3bchQBRsf3XrfuWmBUgEp9u5m5K-yByfb39eYtUHj789XTyYYqZIkjvN2xTE_bPRhffHUY7XYIma5iBIeIVpHnpe0t8hgPsnjwJgmTwGGt", "title": "treelinereview.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFtxWx8u4lrGNxqMItZGihtERreA3B1AiVdqkkkWZOeZJatvB6z0nJ4mve-gPu7D4BlLYkYBdNok4S5MPhCFIfJa0Dwekt1O86cvljYsf7SkalCHc0fVL84JlJl-pHt4jDWMguTti-aVXwvZCg7e6whTTiUL3VdJOKPmFb1PkncZF_GUb1IqUY=", "title": "everydayhealth.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEKikNK_-FCAbeZadh-MmkqXXbPnGMsgmqqgDmhWHe1iYjv7sa29DYmCepXNTYZagAwyMDvF04j3qHYDb6La5N4yeh_D5HdKrFCgQFr5T1RV1rlRwGzulmOr3pVYTRGJoPd4zDqm0y9DvdgKB2YbPLzqQPWktZWD3wk5I2TK67xH0yQyryRO1SuvrRoCQ==", "title": "forbes.com" } ], "search_queries": [ "best NSF Certified for Sport protein powder factors", "NSF Certified for Sport protein powder reviews", "top rated NSF Certified for Sport protein powders" ], "usage": { "input": 11, "output": 1260 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "What is the best NSF Certified for Sport protein powder?", "run": 2, "started_at": "2026-10-30T15:47:01.028Z", "finished_at": "2026-10-30T15:47:09.759Z", "text": "Several protein powders have received high ratings and are NSF Certified for Sport, ensuring they are tested for banned substances and contaminants. The \"best\" option often depends on individual dietary needs, preferences, and fitness goals.\n\nHere are some of the top NSF Certified for Sport protein powders, categorized by type and key features:\n\n**Whey-Based Protein Powders:**\n\n* **Momentous Whey Protein Isolate Vanilla** is highlighted for its lean profile, providing 20g of protein in 90 calories. It is specifically noted for its NSF Certified for Sport coverage.\n* **Transparent Labs Grass-Fed Whey Protein Isolate** is frequently recommended for athletes.\n* **Thorne Whey Protein Isolate** is recognized for its quality, lacking artificial sweeteners and gluten, and is often preferred by athletes with ingredient sensitivities. It provides approximately 21g of protein per serving.\n* **NOW Sports Whey Protein Isolate, Unflavored Powder** is praised as the best unflavored option, containing just two ingredients: whey protein isolate and sunflower lecithin. It is also Informed Sport certified.\n* **Klean Athlete Klean Isolate** is an unflavored whey protein isolate providing around 20g of protein per serving, and the brand is built entirely around NSF Certified for Sport compliance.\n* **Gnarly Grass-Fed Whey Protein** is a third-party tested and NSF Certified for Sport option that has been described as one of the best-tasting, with a smooth texture and added probiotics and digestive enzymes.\n* **1st Phorm's Phormula-1 Clear** is a lightweight, juice-like option that delivers 22 grams of protein per serving with no carbs, fat, or sugar, and is NSF Certified for Sport.\n* **BioSteel Whey Protein Isolate** is considered a solid choice for post-workout recovery and muscle building, emphasizing clean, high-quality ingredients.\n\n**Plant-Based Protein Powders:**\n\n* **Garden of Life Sport Organic Plant-Based Protein** is a recommended dairy-free choice and the only certified plant option with broad availability. It provides approximately 30g of protein per serving from a pea/sprouted grain blend. Reviewers have noted its good digestion tolerance and mixability compared to other plant proteins.\n* **Ritual Essential Protein** is a plant-based protein powder made from organic pea protein, formulated to support muscle and brain health. It is NSF Sport certified and provides 20g of protein per serving, along with additional nutrients like choline, calcium, iron, and L-Methionine.\n* **Momentous Vegan Protein** offers 20g of protein from peas and rice and is NSF Certified for Sport, making it suitable for muscle recovery and performance.\n\n**Collagen-Based Protein Powders:**\n\n* **Bubs Naturals Collagen Peptides** is an NSF Certified for Sport option that provides 20g of hydrolyzed collagen per serving. It's unflavored, dissolves easily, and is free of gluten, dairy, soy, GMOs, and artificial additives.\n* **Vital Proteins Collagen Peptides (Unflavored)** is another NSF Certified for Sport collagen product that dissolves easily and is tasteless, making it suitable for mixing into various beverages.\n\nWhen choosing, consider factors such as your protein source preference (whey, plant, or collagen), whether you prefer flavored or unflavored, and if additional ingredients like probiotics or digestive enzymes are important to you. Always verify the specific product and lot number against the NSF Certified for Sport listings to ensure current certification.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHyJwSk7mPRa9ovWvm66RoVhyJChqzWBEZr5SMIm_OYygwi6xLIMf1Dux1DAMcKDVSZFBONlMHNO_ZXkHK6Z0Ny11qlEK772mRzb55kdaHsVXhLGBtHJWXD1m5K_g5RVATWiDQOqKer74jnX4Pmi_KHRAAYBEX94LD2SXuDwoal-0s=", "title": "fitnessvolt.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHSr2JpNeQrjd0ysysaA-KI-LyXHPYJSro7a_xkwEP5TL9zWzKdR_8OipdsCJJMZZPgkq4acNWexYRUV0-_gPRglRyxUgr_8I6zI8itKIsYZBID9ISqHK081UcG944urvuB9Nq5pZQQJb9bdWs5B6y2axyqt--zmnkGJVSQegZB1Gd_4J2QUNw=", "title": "everydayhealth.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGbNfjVS2WSD-oJOhoW7qnpT2kk0etK4OWVQMEekxaGWuHLVWnS3mDREQnyUTIY3XG1BlQVXiW3eCkmrEWMpAHgDtcATy5K1ot26feW1RGEhAZ61qbAqByHWmJR8SwV2Ku-hjiqeVjdpF3CXbQYCmhzblY4nCvgqhLo3dLevIbp", "title": "muscleformulas.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHTsakhX4uuB_WaFY1aSCGqdNsMsTVHwIyDI2MiPF7a5k42kpjjaAaB8Gm4lDuE3BRZWWtAKmaS-6Vzj62q2xxXpFPsuAh5L0YRblQhuM56MgJT3TvSU0GUd2be-Ss_gSkZ5WpqIdA5H-EfRCZA8ZlIUSfCwqANBdsyO3H0nliux4n9rUf0nz9EZK5Ddw==", "title": "forbes.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQG308wV9MJC6dGfzqGpv-2OmoBKnzxcDpiKq54Mx7FpU0OTU67yltHKPQ0E7ScMoLs8vEQpqtn9LrOfIoJXbkvIHprtOHLRbJsGXI1Oan8am1WB4QItWjCHOy7Rl2O7kn1Usz_zUtMGsNXrItZ2hBYN9yZsOzLtiz6iohVzUW1CTg7a6kz79fst9ctNUpbMBl6aUSw=", "title": "livemomentous.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEi3cgPB_kQ7u9_mFhenpIQmtHGa8MowBNbm85EeNyrn7PMMzUpDD-cK0CZl7t0eu1GjP6aMbinC-qZxLqNeuroBrNTD_gz5dS1CWXnCzMZTz3HUrjEskJMb8Vs8NHkvOPiiIjyeV0BJSklQ_oR4nYH", "title": "healthline.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQF96UIcOPniAbeqaiyjenkRtxBQjtH-v4qYJsl2CA8367GZ51NfzDpgTBr3mT2Jzeb_eByGN9OxCmef1Vals7XXM4tGawwQBpFMkmvEKDruChiCN8o2bQWW07xS6gwVczKa0sJ-otZhmfdnmWqfNzR9nfVH6GYxZSGCAR1Ipx5A8lHTYWXvz82qwvIYRYffWrlY", "title": "nsfsport.com" } ], "search_queries": [ "best NSF Certified for Sport protein powder reviews", "top-rated NSF Certified for Sport protein powder" ], "usage": { "input": 11, "output": 1129 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "What is the best NSF Certified for Sport protein powder?", "run": 1, "started_at": "2026-10-30T15:45:53.174Z", "finished_at": "2026-10-30T15:46:31.264Z", "text": "Short answer: there isn’t a single “best” NSF Certified for Sport protein powder for everyone — it depends on your goals (whey vs plant, calories/protein per scoop, taste, budget). That said, these NSF Certified-for-Sport products are widely recommended and worth considering depending on what you want:\n\n- Momentous — Essential / Grass‑Fed Whey Protein Isolate (great all‑around, frequently recommended for drug‑tested athletes for its clean label and NSF coverage). ([momentousnutrition.com](https://momentousnutrition.com/products/essential-whey-protein?utm_source=openai)) \n- Transparent Labs — 100% Grass‑Fed Whey Protein Isolate (very clean ingredient list, multiple flavors, good protein-per-scoop). ([allaboutsupplements.com](https://www.allaboutsupplements.com/reviews/transparent-labs-whey-isolate-review?utm_source=openai)) \n- Thorne — Whey Protein Isolate (clinician‑familiar brand with simple formulations and NSF listings). ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1513728&utm_source=openai)) \n- Klean Athlete — KLEAN Isolate (sports‑focused brand whose isolate is NSF Certified; good option for competitive athletes). ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=822017&utm_source=openai)) \n- Optimum Nutrition — Gold Standard 100% Whey (some flavors/pack sizes are listed on NSF’s database — a popular mainstream choice with some NSF‑certified SKUs). ([supplementchecker.co](https://supplementchecker.co/answers/is-optimum-nutrition-nsf-certified/?utm_source=openai)) \n- Garden of Life — Organic Plant‑Based Performance (one of the better NSF‑listed plant‑based sport proteins if you want a non‑dairy option). ([info.nsf.org](https://info.nsf.org/Certified/FuncFoodBev/Listings.asp?Company=C0266676&Standard=229&utm_source=openai))\n\nWhy certification matters and how to use it\n- NSF Certified for Sport verifies products against a public database and screens for many banned substances — it’s the most reliable signal for athletes who need low risk of contamination. ([trust.nsf.org](https://trust.nsf.org/nsf-certified-for-sport?utm_source=openai)) \n- Important: NSF certification is often for specific flavors, package sizes, and lot numbers. Always confirm the exact product/flavor/lot you plan to buy in the NSF Certified for Sport database before purchasing. USADA and NSF recommend verifying listings directly. ([nsfsport-prod.nsf.org](https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai))\n\nQuick checklist to pick the right one for you\n- Decide whey isolate (fast, low lactose) vs plant (dairy‑free). \n- Check protein per scoop, calories, added sugars, and ingredient simplicity. \n- Verify the exact flavor/size/lot on the NSF Certified for Sport database (search at nsfsport.com). ([nsfsport-prod.nsf.org](https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai)) \n- Compare cost/serving and read recent lab/lead-testing reviews if heavy‑metal exposure is a concern (some reviewers re‑test products). ([healthbritannica.com](https://healthbritannica.com/articles/roundups/best-third-party-tested-protein-powder/?utm_source=openai))\n\nIf you want, I can:\n- Look up whether a specific flavor/size/lot you’re considering is currently listed as NSF Certified for Sport, or \n- Narrow picks by taste preferences, budget, or dietary needs (vegan, lactose‑free, low‑calorie). Which would you like?", "sources": [ { "url": "https://momentousnutrition.com/products/essential-whey-protein?utm_source=openai", "title": "Whey Protein Isolate | Momentous" }, { "url": "https://www.allaboutsupplements.com/reviews/transparent-labs-whey-isolate-review?utm_source=openai", "title": "Transparent Labs Whey Isolate Review: Checked Lot by Lot" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1513728&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=822017&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://supplementchecker.co/answers/is-optimum-nutrition-nsf-certified/?utm_source=openai", "title": "Is Optimum Nutrition NSF Certified for Sport? | SupplementChecker" }, { "url": "https://info.nsf.org/Certified/FuncFoodBev/Listings.asp?Company=C0266676&Standard=229&utm_source=openai", "title": "Listing Category Search Page | NSF International" }, { "url": "https://trust.nsf.org/nsf-certified-for-sport?utm_source=openai", "title": "NSF Certified for Sport | NSF" }, { "url": "https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai", "title": "Certified Products Search | NSF International Certified for Sport®" }, { "url": "https://nsfsport-prod.nsf.org/certified-products/index.php?utm_source=openai", "title": "Certified Products Search | NSF International Certified for Sport®" }, { "url": "https://healthbritannica.com/articles/roundups/best-third-party-tested-protein-powder/?utm_source=openai", "title": "Best Third-Party Tested Protein Powders (2026): NSF, Informed, USP | Health Britannica" } ], "search_queries": [ "NSF Certified for Sport protein powder list NSF database", "Momentous Whey Protein Isolate 'Certified for Sport' NSF listing", "Optimum Nutrition Gold Standard 100% Whey NSF Certified for Sport listing" ], "usage": { "input": 17837, "output": 2350 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "What is the best NSF Certified for Sport protein powder?", "run": 2, "started_at": "2026-10-30T15:46:59.703Z", "finished_at": "2026-10-30T15:47:34.030Z", "text": "Short answer: there’s no one single “best” NSF Certified for Sport protein — the top choice depends on whether you want whey or plant protein, a minimal-ingredient powder, or a sport/recovery formula. Below are well-regarded NSF Certified for Sport options by category (with sources) and a quick next-step recommendation.\n\nWhy NSF matters: NSF Certified for Sport verifies lot-by-lot testing for banned substances and label accuracy — it’s the go-to program recognized by USADA and many pro sports organizations. ([nsfsport.com](https://www.nsfsport.com/))\n\nTop picks (2026):\n\n- Best overall whey (clean, athletic focus): Thorne Whey Protein Isolate — clinical reputation, good amino‑acid profile, easy digestion, and NSF Certified for Sport. Good for athletes who want a trusted clinical brand. ([thorne.com](https://www.thorne.com/products/dp/plant-protein-chocolate-flavored))\n\n- Best plant-based for recovery/performance: Vega Protein + Recovery (formerly Vega Sport) — 30 g plant protein per serving, formulated for post-workout recovery, and carries NSF Certified for Sport status. Good if you want a high-protein vegan recovery blend. ([myvega.com](https://myvega.com/products/vega-protein-recovery-premium-protein))\n\n- Best organic / “sport” plant option: Garden of Life SPORT Organic Plant-Based Protein — organic, sport‑focused line and NSF Certified for Sport (good if organic certification matters). ([gardenoflife.com](https://www.gardenoflife.com/sport-organic-plant-based-protein-vanilla))\n\n- Best minimal-ingredient / single-ingredient plant protein (value + transparency): NAKED Pea (Naked Nutrition) — pea isolate with few additives and NSF certification; good if you want a simple, high‑protein powder. ([nakednutrition.com](https://nakednutrition.com/products/pea-protein-powder))\n\n- Premium performance whey & specialty formulas: Momentous (whey, collagen, vegan products) — they market several NSF Certified for Sport protein products aimed at athletes and recovery. Good if you want performance-focused, research-backed formulations. ([livemomentous.com](https://www.livemomentous.com/collections/protein))\n\nHow to pick the “best” for you\n- If you want maximum anti‑doping safety: buy any NSF Certified for Sport product and check the NSF listing/app for the exact product/lot before use. (NSF maintains the official searchable directory and app.) ([nsfsport.com](https://www.nsfsport.com/certified-products/)) \n- If you care about digestion: choose whey isolate (e.g., Thorne, Momentous) or an enzyme‑enhanced formula. ([livemomentous.com](https://www.livemomentous.com/products/essential-whey-protein)) \n- If you’re vegan or dairy‑free: choose Vega, Garden of Life SPORT, Naked Pea, or Thorne plant protein. ([myvega.com](https://myvega.com/products/vega-protein-recovery-premium-protein))\n\nQuick buying tips\n- Confirm the specific product (flavor/size/lot) is still listed as NSF Certified for Sport on NSF’s directory or the Certified for Sport app before buying. ([nsfsport.com](https://www.nsfsport.com/certified-products/)) \n- Watch serving size, protein-per-serving, added sugars, and any extra ingredients (BCAAs, probiotics) that you do or don’t want. \n- If you’re an athlete under testing, consult your team’s sports dietitian or check your governing body’s rules in addition to NSF certification.\n\nWant a tailored recommendation?\nTell me: do you want whey or plant protein, a strict ingredient list (minimal additives), a target price range, or particular dietary limits (lactose‑free, organic, etc.)? I’ll pick the best NSF‑certified options for your needs and show the NSF listing(s) for each product.", "sources": [ { "url": "https://www.nsfsport.com/", "title": "Certified for Sport®" }, { "url": "https://www.thorne.com/products/dp/plant-protein-chocolate-flavored", "title": "Plant Protein - Chocolate & Reviews | Thorne" }, { "url": "https://myvega.com/products/vega-protein-recovery-premium-protein", "title": "Vega® Performance Protein + Recovery - Plant-Based Protein for Optimal ..." }, { "url": "https://www.gardenoflife.com/sport-organic-plant-based-protein-vanilla", "title": "SPORT Organic Plant-Based Protein Powder - Vanilla - Garden of Life" }, { "url": "https://nakednutrition.com/products/pea-protein-powder", "title": "Pea Protein Powder 5LB - Vegan & Gluten Free - Naked Pea - Naked Nutrition" }, { "url": "https://www.livemomentous.com/collections/protein", "title": "Momentous Protein Powders - NSF Certified" }, { "url": "https://www.nsfsport.com/certified-products/", "title": "Certified Products Search | NSF International Certified for Sport®" }, { "url": "https://www.livemomentous.com/products/essential-whey-protein", "title": "Grass-Fed Whey Protein Isolate Powder | Momentous" }, { "url": "https://myvega.com/products/vega-protein-recovery-premium-protein", "title": "Vega® Performance Protein + Recovery - Plant-Based Protein for Optimal ..." }, { "url": "https://www.nsfsport.com/certified-products/", "title": "Certified Products Search | NSF International Certified for Sport®" } ], "search_queries": [ "NSF Certified for Sport protein powder list NSF Certified for Sport protein brands", "site:nsfsport.com Momentous NSF Certified for Sport protein", "site:nsfsport.com 'Vega Sport' 'Certified for Sport' protein", "Momentous NSF Certified for Sport Essential Grass-Fed Whey NSF Certified for Sport product page", "Thorne 'NSF Certified for Sport' plant protein 'Thorne Research protein' 'Certified for Sport'" ], "usage": { "input": 26019, "output": 2746 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "What is the best NSF Certified for Sport protein powder?", "run": 1, "started_at": "2026-10-30T15:45:50.316Z", "finished_at": "2026-10-30T15:45:53.174Z", "text": "**Best overall for most people: Thorne Whey Protein Isolate.** It’s NSF Certified for Sport and provides 21 g of whey protein per serving; reviewers also highlight its mixability and relatively simple ingredient list.[2][8]\n\nIf you want **more protein per serving**, choose Transparent Labs Grass-Fed Whey Isolate (28 g); for a **plant-based option**, Garden of Life SPORT Organic Plant-Based Protein is NSF Certified for Sport.[4][6]\n\nNSF certification applies to specific products—and sometimes specific flavors—so verify the exact tub in NSF’s Certified for Sport database before buying.[4][9]", "sources": [ { "url": "https://www.forbes.com/health/supplements/best-protein-powders/", "title": "Best Protein Powders Of 2026" }, { "url": "https://www.health.com/best-protein-powders-8363560", "title": "www.health.com › best-protein-powders-8363560The 11 Best Protein Powders of 2026 - Health" }, { "url": "https://healthbritannica.com/articles/roundups/best-protein-powder/", "title": "Best Protein Powder 2026: What 3 Lab Tests Found" }, { "url": "https://healthbritannica.com/articles/roundups/best-third-party-tested-protein-powder/", "title": "Best Third-Party Tested Protein Powders (2026): NSF, Informed ..." }, { "url": "https://health.usnews.com/otc/rankings/protein-powders", "title": "Best Whey Protein Powders Pharmacist Ranked| U.S. News" }, { "url": "https://www.verywellfit.com/best-organic-protein-powders-4163611", "title": "The 10 Best Organic Protein Powders of 2026, Tested and Reviewed" }, { "url": "https://www.yahoo.com/lifestyle/health/nutrition/article/best-protein-powder-154904647.html", "title": "These are the 7 best protein powders of 2025, according to ..." }, { "url": "https://www.everydayhealth.com/diet-nutrition-products/best-protein-powders/", "title": "From Workouts to Busy Mornings, These 15 Protein Powders Are ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.everydayhealth.com/diet-nutrition/best-protein-drinks/", "title": "We Tested Over 100 RD-Recommended Protein Drinks" } ], "search_queries": [], "usage": { "input": 6108, "output": 132 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "What is the best NSF Certified for Sport protein powder?", "run": 2, "started_at": "2026-10-30T15:46:54.722Z", "finished_at": "2026-10-30T15:46:59.703Z", "text": "**Garden of Life SPORT Certified Grass Fed Whey** is a strong all-around choice: it’s NSF Certified for Sport and provides 24 g of whey protein per serving.[6] If you want a vegan option, **Garden of Life SPORT Organic Plant-Based Protein** is also NSF Certified for Sport.[6]\n\nThere isn’t one best powder for everyone: choose based on protein source, ingredients, taste, and cost. If you compete in a tested sport, check the NSF database for the **exact product and flavor** before buying, since certification may not cover every version.[4][9]", "sources": [ { "url": "https://www.forbes.com/health/supplements/best-protein-powders/", "title": "Best Protein Powders Of 2026" }, { "url": "https://www.health.com/best-protein-powders-8363560", "title": "www.health.com › best-protein-powders-8363560The 11 Best Protein Powders of 2026 - Health" }, { "url": "https://healthbritannica.com/articles/roundups/best-protein-powder/", "title": "Best Protein Powder 2026: What 3 Lab Tests Found" }, { "url": "https://healthbritannica.com/articles/roundups/best-third-party-tested-protein-powder/", "title": "Best Third-Party Tested Protein Powders (2026): NSF, Informed ..." }, { "url": "https://health.usnews.com/otc/rankings/protein-powders", "title": "Best Whey Protein Powders Pharmacist Ranked| U.S. News" }, { "url": "https://www.verywellfit.com/best-organic-protein-powders-4163611", "title": "The 10 Best Organic Protein Powders of 2026, Tested and Reviewed" }, { "url": "https://www.yahoo.com/lifestyle/health/nutrition/article/best-protein-powder-154904647.html", "title": "These are the 7 best protein powders of 2025, according to ..." }, { "url": "https://www.everydayhealth.com/diet-nutrition-products/best-protein-powders/", "title": "From Workouts to Busy Mornings, These 15 Protein Powders Are ..." }, { "url": "https://www.nsfsport.com/certified-products/search-results.php", "title": "Certified Product Results | NSF International ..." }, { "url": "https://www.everydayhealth.com/diet-nutrition/best-protein-drinks/", "title": "We Tested Over 100 RD-Recommended Protein Drinks" } ], "search_queries": [], "usage": { "input": 6108, "output": 124 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "Best NSF Certified for Sport creatine for a drug-tested athlete", "run": 1, "started_at": "2026-10-30T15:46:05.102Z", "finished_at": "2026-10-30T15:46:13.418Z", "text": "For drug-tested athletes, selecting an NSF Certified for Sport creatine is crucial to ensure the product is free from banned substances and accurately reflects its label claims. NSF Certified for Sport is a third-party certification that verifies products are tested for over 280 banned substances, contaminants, and that what's on the label is actually in the product.\n\nHere are some top NSF Certified for Sport creatine options:\n\n* **Thorne Creatine**: This is a highly recommended option, often cited for its quality and simplicity, containing only creatine monohydrate. It's NSF Certified for Sport and is available in an unflavored powder. Thorne Creatine is also noted for being a Creapure product, a premium creatine source known for high purity.\n* **Momentous Creatine**: Momentous Creatine is NSF Certified for Sport and undergoes additional third-party testing for PFAS, heavy metals, and microplastics. It uses Creapure and is a single-ingredient formula.\n* **1st Phorm Micronized Creatine Monohydrate**: This product is NSF Certified for Sport and Informed Choice certified. It's a simple creatine monohydrate formulation without additional ingredients, making it easy to mix.\n* **Bucked Up Essentials Creatine Monohydrate**: Bucked Up offers an NSF Certified for Sport creatine monohydrate, providing assurance for drug-tested athletes regarding label accuracy and banned substance screening.\n* **Sports Research Creapure Creatine**: This option provides 5g of Creapure creatine monohydrate per serving and has a distinct NSF listing.\n* **BUBS Boost Creatine Monohydrate**: Another Creapure-sourced creatine, it's an unflavored, single-ingredient formula with NSF certification.\n* **Klean Athlete Creatine**: This brand is specifically mentioned as having creatine powder with NSF Certified for Sport entries.\n* **Muscle Milk Pro Series Creatine**: Muscle Milk offers a creatine powder that is NSF Certified for Sport, with its record identifying the unflavored 500g product.\n* **Proven4 Creatine Monohydrate**: This product is NSF Certified for Sport, micronized, unflavored, and independently verified.\n\nWhen choosing a creatine supplement, drug-tested athletes should always:\n* **Verify the NSF Certification**: Check the NSF website (nsfsport.com) to confirm the specific product and lot number are certified.\n* **Prioritize Creatine Monohydrate**: This is the most studied and generally recommended form of creatine.\n* **Review the Ingredient List**: Opt for products with minimal ingredients to reduce the risk of hidden contaminants.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHh4C1EDOoOZ4ZXPy8oWLcTPjMHaE7_1ckJ0QvetDFr5_QB6ApkARUJTI81tn2hg8e49Wa0lwWi0L_ztvXD2hZHJgDbATpi-fFudElbLl8byf1qJtcqoDqmvTkhDW_9A3F9zei3hzIx9KgZ9BiTeNbuY4kjkL72r1-V-e-7gdxm", "title": "proven4.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFhUYgoGC-mHtfHM0thoCT9kGRArvLXHi5qKwcTokaneRh2-mDpMht6O_zslWGDeSxeQeyCwHI5dxMTKIug8nb3bzIn-h41Vd5uDn2siDG43f_2xuhqNaagmJrRckYQccW9aG0CaGsOV4eHDIqz3v4=", "title": "fitnessvolt.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEeANzoyoB_GoLI2rUvHJQSJAXxN9_tgnhBmS1RnrGySA1UJMUUisLOB0kQe4Iu-E_0stGHGvgS1_AntOhdmeAQnP7G4D5mT0_a6wMahAzQ1cCso-T4lTAfxpOOKVhG0fPfZ9nbOgIh9MQ2_jP2", "title": "healthline.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHNFPhFyQ95iEG5xrz-hSrKtjTOaqeq_rq3oaQ-X7vFp2b6gp_6uPDt8ET9nCu8l-F5H35mOvBZO-Ml9i-o4HtExLWROSWMwHjuD5xLDjpLt-G4yAyPX3ww9VsdApFdOwP5cJVjKv8-AlBbgEUFepf2u3jMpjmlkVQwo2aEEanLXWGIFF8dNv3EPUs8LkOzlCDuxg==", "title": "forbes.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQG9K3EHIGxJ4gVxny_IPg-bQDR4DYcS6Scuwoznto9u46ljdwmf4KKtyHRTrJ-ETZdj5SRtLmu8r3dFc72p3nicMjZVzsqVsxA9l2L2tnVUjSX3432JaUOr6eyZ7lbFZG4iZY-Lgtk=", "title": "thorne.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHsTfNFq28JMmWMeq9_qytEXBtuCCLjo5g08A_pwNTe-8wAdEoIvqzcjXdNSLZlxRU9Lcs3C9rlxa-qRakATaqcwGrb1AJpP4z2o0jhjkCqmdLh8Kh8Y4vHr3EOigL0pB0UeyIcQJ-i61uBkW-rRSSoyJTinFox-N6e7V8=", "title": "betterbody.health" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEa618TAZ_ZD_W1DyJFRis7KBIHDuNJ0AXPMm9E3dpLJQHFjYgbLk9u_zDH6TaH5BktqZshQT71b4QfIS4bj2WT330a-Trgz2WwNPDjme-yUuR3WlPH3W1rsf1tKwxX4QhxRxSnGLfJokg-3G4z0n2FjVXEyOb5", "title": "livemomentous.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQETXLBVkoGHkQ6CzesDlewba7kUXBFQlgjg3FKzv9lX0O-pluybqMUtocUCXkmFsmTj25Ilq0p_cRpT0eKPifLLOxGfOzCYoXXu_nV9eI3xPl1xhT9ECwB_aHg-psibZDcGQ4Rdz2J6J20=", "title": "garagegymreviews.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHeRnO-GshwCBql9NiGYZjHoyCXanXiIGnFeXUvg5FQDrq6p52eqjfncdceK-NcRZCrvq4RgOC53oZzAT1Diu4EGwDKWHs8Mqz-u2D-5zjSnc1T-sNR3nQmucfAbdgBD6vSYhXUKMvdbat0_I-iINC5sXuX7SRRx1bWy4A=", "title": "buckedup.com" } ], "search_queries": [ "NSF Certified for Sport creatine for drug-tested athletes", "best NSF Certified for Sport creatine" ], "usage": { "input": 12, "output": 714 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "Best NSF Certified for Sport creatine for a drug-tested athlete", "run": 2, "started_at": "2026-10-30T15:47:19.068Z", "finished_at": "2026-10-30T15:47:27.506Z", "text": "For drug-tested athletes, selecting an NSF Certified for Sport creatine product is crucial to ensure it's free from banned substances and accurately labeled. Several reputable brands offer NSF Certified for Sport creatine monohydrate, which is the most studied and generally recommended form of creatine.\n\nTop recommendations for NSF Certified for Sport creatine include:\n\n* **Thorne Creatine:** This product is frequently cited as a top choice for drug-tested competitors due to its NSF Certified for Sport designation, ensuring it's free of nearly 300 substances banned by major athletic organizations. It contains only creatine monohydrate and is unflavored, making it versatile for mixing with other beverages. Thorne is recognized for its quality and simplicity, with some sources naming it the best creatine supplement brand overall.\n* **Momentous Creatine:** Momentous Signature Spec Creatine Monohydrate is NSF Certified for Sport and undergoes additional third-party testing for PFAS, heavy metals, and microplastics, which are not required by the NSF certification. It's pure creatine monohydrate, processed in a pharmaceutical facility with stringent impurity and heavy metal limits.\n* **Klean Athlete Klean Creatine:** This is another highly recommended option for drug-tested athletes and those who prioritize clean sport. It's a single-ingredient creatine monohydrate that is both NSF Certified for Sport and Informed Choice certified. While effective and trustworthy, it may be priced higher than some alternatives.\n* **1st Phorm Micronized Creatine Monohydrate:** This product is NSF Certified for Sport and also third-party tested by Informed Choice. It features a simple formulation with only creatine monohydrate and is designed to mix easily.\n* **Transparent Labs Creatine HMB:** While often lauded as a top creatine supplement, it's important to note that while it is third-party tested and contains HMB for muscle recovery and growth, its NSF Certified for Sport status should be verified for the specific product version being considered, as some sources highlight its third-party testing without explicitly stating NSF certification for all variants. However, third-party testing is crucial for drug-tested athletes to avoid banned substances.\n\nWhen choosing a creatine supplement, especially as a drug-tested athlete, always look for the NSF Certified for Sport logo on the product packaging and consider checking the NSF website to verify the specific product and lot number. This certification verifies that the product contains what it claims, is free from banned substances, and meets strict limits for contaminants.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEHpdGH34caoZNhZUhInxqLhVF8ZnrLNzhDIv1LLvBsGvm4hI_mLyvk39TN9D3b_p8LfQghcEdKpiEp5UzKTiFvGC38mVdoj4XfrQLYAJlYswouXvyw7uoDuqGK2UCapIHX-SDaMJoJ5tF3WnZRn8-RgP3ufjOeE8l47pkPv-OKGdV3PUWjcex3T7kN_GAdJAReuw==", "title": "forbes.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEYyJ9pR9rqBqowqkcqQfGJedjJ3CQ2FkiTcR-Q0erm8P6zuteSp9QHYSzmaPV0MgGWcBXDxoWmmTOssBzlJaDrOFRgXg0g0vnypXfhbPcYJcX-om3tFcInELPtETWWXZ-0yIQqPIeDlpLnYVVv", "title": "healthline.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQE_5EK-Xn_tfW28JpUXHsppuY1dxW0AvaRrJWiJXPwdNLe6jDxkK6tkZzANx3tiZ7OCW8GWHudkhx41j393QVbTcZtZBux_sAViU5sWiuKOpURJSgUbzy5XJjruV6A2xX877v-eSg8jH2FqLhKHcrCkl-Eq_Nunv34YxLC596qf7-JmHWp1Rjw=", "title": "nutriessential.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGimzMmquid36AnX4GtfJhDVbgG_YFkylMUi_KQuIxzhKSrWar4VlZHnUMjvcuI1aBdOAuyPPxtG1fPliOcqwZ-m4BwQvGr4mmV-Z9nZdn4gf4Lz9GTsY4cVQkPWeKuglYyTLBsVoD4nL2KhT0YXWS3cXp7qYpX", "title": "livemomentous.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGo8fch5YQXEo3GTaGYCEc2Vbd-ZFUwKAG1PJIoJDGINNQuP07fFrHamWO2znjQbhgMdvbN7ehKHXMfw2C6e3kVELZD2jfmRmr97aYIo45EbT4xq_FXwhcxMBUX6JAO0nYl_L3-xnPaz2kx8sYUESI=", "title": "fitnessvolt.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQG_ct-8KNvH9oiJcauvAm2-RE8DdAh0dOh5rGfJz5kl_H7XtOGMJgh7RGLY4xsbDz7aqgBPwTMeM8wcKetTiBGaArb1BMrTnZK1ixwZEyDBduPnkyzETjbbDunx9ursbBJEfiAzcKbbP9ScAN8sbMU9Ur_QFw==", "title": "usefulvitamins.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGliLd14Zu-nmmMIqE8KqWtRAg4Rtqh5inZsKpNKmY1v18MGYVXpzJMv0Qf2FSIUm1pstgD96Yi7Fbo71OqgbA5MZh-Zo9TxVxOidm_vKWHZqP--ioandyztlUszaqc7kYj2yWOnlpIahqbaMAIx7L8dQ==", "title": "garagegymreviews.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHKrbmtQynfGrdCcfQf1ixmTAhsVSN1AZm43epFAK2dAzbxqW_W93MqRX-kQqO9GtoGujEx7LD0Xch9yhgrwprxFjOZLL3SU500RlH-dVv01rkoKYQPta1ZqCtfF0nhWZ78aUfHLNAJRtk=", "title": "garagegymreviews.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHXPeP_qfcoLDCBhQ_p9Ug6TS9mKIXIDX1yfTu9APL-dJJ4b9H0tp4BMdjY6iE-JlyErIllByqkew84crosayrvYb8MSIRrsA6anIiwGkd0yJ9D2t5RnHkCrjMqB9UU63vxu8c1F0Y9NvMhMDj6ac2NAw==", "title": "garagegymreviews.com" } ], "search_queries": [ "best NSF Certified for Sport creatine", "NSF Certified for Sport creatine for drug-tested athletes reviews", "popular NSF Certified for Sport creatine brands" ], "usage": { "input": 12, "output": 675 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "Best NSF Certified for Sport creatine for a drug-tested athlete", "run": 1, "started_at": "2026-10-30T15:46:00.213Z", "finished_at": "2026-10-30T15:46:32.411Z", "text": "Short answer: pick a plain creatine monohydrate product that’s listed in NSF’s “Certified for Sport” register — top, widely available choices are Sports Research Creapure (Creapure micronized CM), Thorne Creatine, BulkSupplements Creatine Monohydrate, Momentous Creatine, or Proven4 Sport Creatine. All of those appear in NSF’s Certified for Sport database (so they’re tested for label accuracy and screened for many banned substances). ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine))\n\nWhy these picks\n- Creatine monohydrate is the best‑researched form for athletes (efficacy and safety). ([higherlogicdownload.s3.amazonaws.com](https://higherlogicdownload.s3.amazonaws.com/THEACADEMY/22e42477-8b1e-4914-aa66-e459f839798b/UploadedImages/SHPN/Documents/Fact_Sheets/SHPN_Fact_Sheet_-_Understanding_Creatine_for_Dietetics_Professionals.pdf)) \n- Creapure (German micronized monohydrate) is a common premium raw material; Sports Research’s Creapure product is NSF‑listed, which combines the Creapure supply reputation with sport third‑party testing. ([allaboutcreatine.com](https://www.allaboutcreatine.com/rankings/best-creapure-creatine?utm_source=openai)) \n- BulkSupplements and similar plain powders are often the best value and are also listed on the NSF sport register. ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine))\n\nQuick practical notes (for a drug‑tested athlete)\n- Always choose a product that explicitly carries the NSF Certified for Sport mark or confirm the current listing on NSF’s searchable database before buying/using. The database is the authoritative source and changes as products/lots are added or expire. ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine)) \n- Avoid proprietary blends and multi‑ingredient “stacks” (use a plain creatine monohydrate so the dose is clear). ([higherlogicdownload.s3.amazonaws.com](https://higherlogicdownload.s3.amazonaws.com/THEACADEMY/22e42477-8b1e-4914-aa66-e459f839798b/UploadedImages/SHPN/Documents/Fact_Sheets/SHPN_Fact_Sheet_-_Understanding_Creatine_for_Dietetics_Professionals.pdf)) \n- Typical maintenance dosing: 3–5 g/day (loading is optional). Larger athletes sometimes use up to ~5–10 g/day. ([higherlogicdownload.s3.amazonaws.com](https://higherlogicdownload.s3.amazonaws.com/THEACADEMY/22e42477-8b1e-4914-aa66-e459f839798b/UploadedImages/SHPN/Documents/Fact_Sheets/SHPN_Fact_Sheet_-_Understanding_Creatine_for_Dietetics_Professionals.pdf)) \n- If you have a competition coming up, verify the product’s current NSF listing and (if possible) the lot number—certification can apply to specific lots. ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine))\n\nIf you want, I can:\n- Look up the current NSF listing (and lot info) for any one of the specific brands above right now; or \n- Compare price/serving and certificate proof for 2–3 products you name. Which would you like me to check?", "sources": [ { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://higherlogicdownload.s3.amazonaws.com/THEACADEMY/22e42477-8b1e-4914-aa66-e459f839798b/UploadedImages/SHPN/Documents/Fact_Sheets/SHPN_Fact_Sheet_-_Understanding_Creatine_for_Dietetics_Professionals.pdf", "title": null }, { "url": "https://www.allaboutcreatine.com/rankings/best-creapure-creatine?utm_source=openai", "title": "Creapure Creatine: What It Is and the Best Brands to Buy" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://higherlogicdownload.s3.amazonaws.com/THEACADEMY/22e42477-8b1e-4914-aa66-e459f839798b/UploadedImages/SHPN/Documents/Fact_Sheets/SHPN_Fact_Sheet_-_Understanding_Creatine_for_Dietetics_Professionals.pdf", "title": null }, { "url": "https://higherlogicdownload.s3.amazonaws.com/THEACADEMY/22e42477-8b1e-4914-aa66-e459f839798b/UploadedImages/SHPN/Documents/Fact_Sheets/SHPN_Fact_Sheet_-_Understanding_Creatine_for_Dietetics_Professionals.pdf", "title": null }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" } ], "search_queries": [ "site:nsfsport.com creatine Certified for Sport creatine monohydrate" ], "usage": { "input": 17477, "output": 2120 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "Best NSF Certified for Sport creatine for a drug-tested athlete", "run": 2, "started_at": "2026-10-30T15:47:10.604Z", "finished_at": "2026-10-30T15:47:49.584Z", "text": "Short answer: pick a single-ingredient creatine monohydrate powder that’s listed in NSF’s Certified for Sport® database. Good, widely available options currently listed by NSF are Momentous Creatine (monohydrate), Thorne Creatine (monohydrate), Proven4 Sport Creatine Monohydrate, Bare Performance Nutrition Creatine Monohydrate, and BulkSupplements Creatine Monohydrate. ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1285010&utm_source=openai))\n\nWhy that approach:\n- NSF Certified for Sport® tests products (lot‑by‑lot) for WADA/NFL/MLB banned substances and verifies the label contents — which is exactly what drug‑tested athletes need. ([nsfsport.com](https://www.nsfsport.com/news-resources/documents/sport_supplement_safety_wp.pdf?utm_source=openai)) \n- Creatine monohydrate is the best‑studied, lowest‑risk form; a maintenance dose of ~3–5 g/day is typical (loading protocols exist but aren’t required). ([ods.od.nih.gov](https://ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-Consumer/?utm_source=openai))\n\nQuick practical tips\n- Buy an unflavored, single‑ingredient creatine monohydrate (fewer ingredients = lower contamination risk). \n- Before you buy, look up the exact product and lot number on NSF’s Certified for Sport search (or use their app) to confirm the bottle/lot is covered. Certification applies to specific product/lot listings, not the brand in general. ([nsfsport.com](https://www.nsfsport.com/certified-products/?utm_source=openai)) \n- Keep the receipt and packaging until you’re sure the lot is acceptable to your sport’s governing body. If you’re subject to very strict rules (pro teams, some international competitions), cross‑check with your organization’s supplement policy and ask your sports medicine staff.\n\nIf you want, I can:\n- Check a specific product or retailer and confirm the NSF listing and lot information for you right now, or \n- Find the cheapest NSF Certified for Sport creatine available in the U.S. — tell me which option you prefer.", "sources": [ { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1285010&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/news-resources/documents/sport_supplement_safety_wp.pdf?utm_source=openai", "title": "Sport Supplement Manufacturing" }, { "url": "https://ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-Consumer/?utm_source=openai", "title": "Dietary Supplements for Exercise and Athletic Performance - Consumer" }, { "url": "https://www.nsfsport.com/certified-products/?utm_source=openai", "title": "Certified Products Search | NSF International Certified for Sport®" } ], "search_queries": [ "NSF Certified for Sport creatine list site:nsf.org", "Thorne Creatine Monohydrate NSF Certified for Sport site:nsfsport.com", "BulkSupplements Creatine Monohydrate NSF Certified for Sport site:nsfsport.com", "creatine monohydrate recommended dose 3-5 g safety review NIH 'creatine safety' 'dose'" ], "usage": { "input": 22244, "output": 2298 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "Best NSF Certified for Sport creatine for a drug-tested athlete", "run": 1, "started_at": "2026-10-30T15:45:57.040Z", "finished_at": "2026-10-30T15:46:00.213Z", "text": "**Best overall: Thorne Creatine.** It provides 5 g of plain creatine monohydrate per scoop and is NSF Certified for Sport, making it a straightforward choice for a drug-tested athlete.[1][5]\n\nFor a lower-cost option, **BulkSupplements Pure Creatine Monohydrate** is also listed as NSF Certified for Sport, but it comes in a bag rather than a tub with a scoop.[1] **Momentous Creatine** is another certified 5 g-per-serving option.[1]\n\nBefore using any product, verify its current listing and—where NSF provides lot information—match the lot number on your container to the registry. Certification can apply to specific listed products or lots, so don’t rely on a brand’s general “third-party tested” claim.[1][6]", "sources": [ { "url": "https://www.allaboutcreatine.com/rankings/nsf-certified-creatine", "title": "NSF Certified Creatine: 5 Picks and Every Listing We Found" }, { "url": "https://super-achiever.com/best/creatine", "title": "Top 7 Best Creatine Supplements (2026) - Super Achiever Club" }, { "url": "https://www.nutrasmarts.com/blog/best-creatine-gummies", "title": "The 9 Best Creatine Gummies of 2026 - NutraSmarts" }, { "url": "https://info.nsf.org/Certified/BannedSub/Listings.asp?Company=C0141626&Standard=306", "title": "NSF Product and Service Listings" }, { "url": "https://www.goodhousekeeping.com/what-to-buy/g70685547/best-creatine-supplement/", "title": "The Supplement Experts Are No Longer Recommending Just for Athletes" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.allaboutcreatine.com/best-creatine-supplements", "title": "Best Creatine Supplements of 2026: Top 8 Brands Ranked" }, { "url": "https://healthbritannica.com/articles/roundups/best-creatine-supplement/", "title": "Best Creatine 2026: Certification Checked, HCl Claims Tested" }, { "url": "https://www.allaboutcreatine.com/rankings/best-creatine-for-men", "title": "Best Creatine for Men 2026: 8 Picks, Certification First" }, { "url": "https://www.medicalnewstoday.com/articles/creatine-for-women", "title": "Best Creatine Supplements for Women in 2026 - Medical News Today" } ], "search_queries": [], "usage": { "input": 6369, "output": 170 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "Best NSF Certified for Sport creatine for a drug-tested athlete", "run": 2, "started_at": "2026-10-30T15:47:09.759Z", "finished_at": "2026-10-30T15:47:19.068Z", "text": "**Thorne Creatine** is the strongest all-around pick for a drug-tested athlete: it provides 5 g of plain creatine monohydrate per serving and is NSF Certified for Sport.[1][5] If cost matters more, **BulkSupplements Pure Creatine Monohydrate** is a lower-cost certified option, though it comes in a bag rather than a tub.[1]\n\nBefore using any product, verify the exact product—and, where the listing specifies it, the lot number—in NSF’s Certified for Sport database. Certification is product-specific, so don’t assume a brand’s other supplements qualify.[1][6]", "sources": [ { "url": "https://www.allaboutcreatine.com/rankings/nsf-certified-creatine", "title": "NSF Certified Creatine: 5 Picks and Every Listing We Found" }, { "url": "https://super-achiever.com/best/creatine", "title": "Top 7 Best Creatine Supplements (2026) - Super Achiever Club" }, { "url": "https://www.nutrasmarts.com/blog/best-creatine-gummies", "title": "The 9 Best Creatine Gummies of 2026 - NutraSmarts" }, { "url": "https://info.nsf.org/Certified/BannedSub/Listings.asp?Company=C0141626&Standard=306", "title": "NSF Product and Service Listings" }, { "url": "https://www.goodhousekeeping.com/what-to-buy/g70685547/best-creatine-supplement/", "title": "The Supplement Experts Are No Longer Recommending Just for Athletes" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.allaboutcreatine.com/best-creatine-supplements", "title": "Best Creatine Supplements of 2026: Top 8 Brands Ranked" }, { "url": "https://healthbritannica.com/articles/roundups/best-creatine-supplement/", "title": "Best Creatine 2026: Certification Checked, HCl Claims Tested" }, { "url": "https://www.allaboutcreatine.com/rankings/best-creatine-for-men", "title": "Best Creatine for Men 2026: 8 Picks, Certification First" }, { "url": "https://www.medicalnewstoday.com/articles/creatine-for-women", "title": "Best Creatine Supplements for Women in 2026 - Medical News Today" } ], "search_queries": [], "usage": { "input": 6369, "output": 133 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "Which pre-workout supplements are NSF Certified for Sport?", "run": 1, "started_at": "2026-10-30T15:46:21.969Z", "finished_at": "2026-10-30T15:46:27.544Z", "text": "The NSF Certified for Sport program helps athletes identify supplements that have been tested for banned substances and contaminants. Many pre-workout supplements have received this certification.\n\nSome of the pre-workout supplements and brands that are NSF Certified for Sport include:\n\n* **1st Phorm:** Offers a \"Pre-Workout\" product and several Megawatt Caffeine Enhanced Nootropic Pre-Workouts in various flavors like Berry Lemonade, Cherry Blast, Melon Berry, and Sweet Peach. They also have \"Ignition\" listed, which can be used as a pre-workout.\n* **A SHOC Energy:** Their Accelerator line, including flavors like Cotton Candy, Blue Raz Slush, Cherry Ice Pop, Cherry Limeade, Citrus Freeze, Orange Ice Pop, Peach Paradise, Rocket Pop, and Tropical Punch, are NSF Certified. Their A SHOC® Energy drinks in flavors like Blue Raspberry, Orange Freeze, Swirl Pop, and Tropical Punch are also certified.\n* **ATHLEAN-RX:** Provides several X-CITE PRE WORKOUT options (e.g., Cherry Lemon Ice, Fresh Squeezed Orange, Fruit Punch, Icy Berry Blast, Jolly Watermelon Pucker, Rocket Pop, Sour Blue Raspberry, Sour Green Apple, Sour Gummy Candy, Sunny Pink Lemonade) and PR-X MAX STRENGTH / ENERGY (e.g., Atomic Lemonade, Power Peach Tea, Strawberry Lemonade).\n* **Bare Performance Nutrition:** Offers \"PRE\" in flavors such as Blue Raspberry, Midnight Melon, and Pink Lemonade.\n* **BLACKLABEL Supplements:** Their \"PRE GAME\" pre-workouts in Lime Rickey, Sour Apple, and Strawberry Kiwi are certified.\n* **Cellucor:** The C4 Sport® Pre-Workout, C4 Sport® x JOLLY RANCHER Pre-Workout, and C4 Sport Ripped™ x JOLLY RANCHER Pre-Workout are NSF Certified for Sport. They also offer C4 Performance Energy®.\n* **Fast Twitch:** Their Grape flavored Pre-Workout Supplement is certified.\n* **The Vitamin Shoppe Industries Inc.:** Under the \"TRUE ATHLETE®\" brand, they offer Pre-Workout in Mango and Strawberry Lemonade flavors.\n\nTo find the most up-to-date and comprehensive list of NSF Certified for Sport products, it is recommended to check the NSF International's online database or download their \"Certified for Sport®\" app. These resources offer enhanced search capabilities, product comparisons, and a UPC barcode scanner to verify lot-by-lot testing for over 290 banned athletic substances. The NSF certification process involves extensive product testing, formulation and label review, and unannounced plant inspections to ensure compliance.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEZHHdHLNY2lbX4rFKno0OHnF64G9UILubmhaI0MIMTQjjDAWG7UmmPHRfVkDr5wk8J-ckH6oW-MOBI2w7qTd-lbejyT2Q9XoCRNp6TwL-uk53Q7nzgUGzUg13op6MRmJ1-SBE2Wij7QMwOzgfys67n-4wu3Um1w2kcsrDKkqWTZjcOyILi3TQOzbPAMGoEIQmnYLdccKY=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFHF0O97HExmhf-9VCFlFm6BA8i46oP2zCZtFwSwdmUTQh17-DQ5D7OJdmvyH4ZfQjMzWLb7QR9LBWiXXi1gz35eNH0GkjxU3pYjnzi9wqzJsTFb93T8x2rjlxMlVUh1PUevSDEPvbth_9UdTplAstCxiexcF8u2h3lL6w1ixjE5w6kdfOkD2-FmGzDPlh00h5d75SqNsAweRrSt8Yv", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQH2iX5KOnxvEcjvTIe_dwl8VC-313VpkGRXf9nvfmPcyQqxApnl5o9-g_o0s-HPQ7H13t0iPV9pNID6u3hjldVobUtZ0aY1kCBBFUOjUnxLdG1psHu76GkJtNUYiVsCjqhRcedREG6hqxVwMUtNIkEp-iha_AGbFYQ=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFfocEEBc2HZFo5LV7dVoJ0vrCfxcGQgUD4WoZQDqqkgI3Ws_FXc00id6VIPMOkOZunGuJG0M0BOP-j5Ceir7ufkN5e4wC1fntHjQwOep15rSo8lCkVurri3VgkMJzgXtWDw_4gnU8anApmAPZ59k5OK5edxPtI4YX7L8p25Ok3jc1UYPh99Q==", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHV5RQU4Oyyd5hqfCAeLxdJYizY3OusfwrCCluiwkBt7sE2XxueeA8DSC_zIeXG3ZwMB_iRQIefh25hQa6cnFCIg4iwJjDMTGW5pxz1uxhGbKPxp8brG7SmhtxoopfoxfrOEpaIwGNpDUfXH3U=", "title": "cellucor.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGgxgoXaZu9gldn3_pVs8GSN3RM8rPeVY3aWlOYvJpbLYGjzq0iEfpSJ_h4CnFrCI8-lLAQsudRQpc7yeLG0WADFgP707NTWGeEX8qGCJMKcNdHKfVRQRpHm4holdiOsGBK519-kxpQijAa7_4rKT2gBm0jO4F00-zPi8ztYvSzy_JWdofeS5Udki0=", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQG66cO7OYCsxnuLroqPoIt2clMG3o1rnSR-lA0QNss5iwgjYbMHdJYhx1or-_-PUKpHIRsDD_hooTvIT4S4foWGLr51mPmbCFYo8J7F5PFNqhEFy0r1BCFKkOMLBE3HVfydz6bD-Hc0S6mhAfOUtbnUNr4qRkqXs-_VnmDglEZBOH2gb72b", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHpaEyzMYEGUGrhTsjapd5uqj8btan5fMcl9iGFGM0Or7lAanLUqX1ky6AAge4lTP3sThlgYi6sfr8XiuS_8KjPQTXJQL6TbNUQE-Om14MxvRhy8Fsua8_2gdyZ79o0_YV4Zq0rJW0=", "title": "nsfsport.com" } ], "search_queries": [ "NSF Certified for Sport pre-workout supplements list", "NSF Certified for Sport pre-workout database" ], "usage": { "input": 11, "output": 701 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "Which pre-workout supplements are NSF Certified for Sport?", "run": 2, "started_at": "2026-10-30T15:47:34.030Z", "finished_at": "2026-10-30T15:47:42.859Z", "text": "Several pre-workout supplements and brands have received NSF Certified for Sport certification, indicating they have been tested for banned substances and contaminants. This certification helps athletes and consumers ensure the integrity of the products they use.\n\nSome of the pre-workout supplements and brands that are NSF Certified for Sport include:\n\n* **1st Phorm:** Offers various pre-workout products such as \"Pre-Workout\" and \"Megawatt Caffeine Enhanced Nootropic Pre-Workout\" in different flavors (Berry Lemonade, Cherry Blast, Melon Berry, Sweet Peach). They also have \"Ignition\" and \"Level-1\" which are listed as certified products.\n* **ATHLEAN-RX:** Their \"X-CITE PRE WORKOUT\" comes in multiple flavors, including Cherry Lemon Ice, Fresh Squeezed Orange, Fruit Punch, Icy Berry Blast, Jolly Watermelon Pucker, Rocket Pop, Sour Blue Raspberry, Sour Green Apple, and Sour Gummy Candy.\n* **Bare Performance Nutrition:** Offers \"PRE\" in flavors like Blue Raspberry, Midnight Melon, and Pink Lemonade.\n* **BioSteel:** Known for clean and effective products, BioSteel is listed as a brand with NSF Certified for Sport pre-workout options.\n* **BLACKLABEL Supplements:** Features \"PRE HUSTLE\" in Coco Lime, Tropical Fusion, and Blue Razz.\n* **Cellucor:** Their \"C4 Sport® Pre-Workout\" and \"C4 Sport® x JOLLY RANCHER Pre-Workout\" are NSF Certified for Sport.\n* **Garden of Life:** Provides pre-workout supplements such as \"Sport Organic Pre-Workout Energy + Focus\".\n* **Human Power of N / Humann:** Offers \"Humann Sport Pre-Workout Beet Powder\".\n* **Klean Athlete:** Their \"Klean Pre-Workout\" is NSF Certified for Sport, formulated with beet root extract, vitamin C, and organic caffeine.\n* **Proven4:** The \"P4 Pre Workout Formula\" is NSF Certified for Sport.\n* **Thorne:** Offers \"Thorne Advanced Pre-Workout\", including a Rainbow Sherbet flavor, which is formulated to enhance performance, focus, and endurance.\n* **TRUE ATHLETE® (Vitamin Shoppe Industries Inc.):** Offers \"TRUE ATHLETE® Pre-Workout\" in Mango and Strawberry Lemonade flavors.\n* **Accelerator Active Energy / A SHOC® ENERGY:** These brands offer several accelerator products, such as \"A SHOC® Accelerator\" and \"Accelerator Active Energy,\" in various flavors like Blue Raz Slush, Cherry Ice Pop, Cherry Limeade, Citrus Freeze, Cotton Candy, Orange Ice Pop, Peach Paradise, Rocket Pop, and Tropical Punch, many of which are NSF Certified for Sport.\n\nTo find the most up-to-date and complete list of NSF Certified for Sport products, including pre-workouts, consumers can check the NSF's online database or download their Certified for Sport® app. This resource allows users to search by keyword, product type, goal, or brand, and provides detailed information about each certified product.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHY-xfGxvDCxN2OvuDH02Xx5-Q_Ra0V5Honu2twCIuQvpnGxBxifNtJuttVQ_2sW3-RZvCUT-88L5SA9xOQNDxYNNjrRnyc0PsEM5EOoWBmPjP2wymid3n_RnGnLUlZhi-sjMM4GGWIM5FTpnPYPaBk35k-6osNQ3ce3rGmuF_5dtj-JHaGJs9nro1nniCVJ8p8M7EjCSuV", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHSVsofvyE3K3_ScW6NVl4AZEtfcnEcJ7M8iQSKnaY9Wfj0hnSWRyoAArf3jYItwJOu_sQ7U6Imn5zGs7_LuYmmfgHhBkAXURLny4U15cOlACQZvouB-7nRPo06muA0tv2dp0_14AlrfaR5qmPC_jaGhi_TURzewLBv", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEdulpt2sN5GQPBY3WZy7MliUfTWsNMFm3Sjjvbn5aLMtWoEITFXu25uqrlMaGS0rWuH92QFbNKkin-U_-4A_ywW5rEAZWOtLbjGUAwT5LHxhVVPFDdOGrs3wjipAg8F1eKEQguZI6CyW7oggTD9YeMfTBgrLeFHsztUaG9qOEB4vGT2gpi-PYLGgilHhTX8iQEBXWDuBDkmZdzboTHhdSA6QElily5F-C6DW9uYv2V1tU=", "title": "proven4.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEf-Xntf_FeoYZ3S_ay0TrsFZNi9Yw2IqE1LbQsZb25mdPvtN1tQSxoWHUPTm9LdL-AaI0-KIJSLJ4H4-Vt8BgAcSgfPPPQdFchZoDMikm-6FMsqlq-_A0KwUVwClj_3a3_IMsin2O8hnqxWkzv", "title": "cellucor.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHP9mUnufvvVOI7iYas5GPNPHEhlKIgrv-SeswR_pjzTVFQl8l_XfFkiLRZqn1DsriztjK3686jeUnUWA5nhGasnCzHN_FfidP_2j3FfPU4IrRhDDdql1Ce0W0y5oPm-b_rG_btD5lqKz7LuQDWVhbTpuKoSipzkm50thWnQ2tBQGnDGlMm4Bk=", "title": "nsfsport.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQESnaxj08lakA1SIwRdXlRu5xAC2B4GSkZZd9Oa9BMNOZL9P-w37tyd048EHpccdlOBNfknuob9k8OQ0G9z1AOxzm6_f_tU3AXA71LMt3oi97eJR2HqtOyZG_K2GawOZ0HXCQd1ubV-XZyjVtWHFk7-", "title": "kleanathlete.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHyz1UvLOkPP75-B8LMV6WiGaHeUpbQ2inCWBrlGEDxmMNfkTDgHc-giUT1ZVeeMhzLj10zmfWSF_AC6ozjZ6dhP3W48hZttjUl14JyqMysyeoo0NajQ3BN90KcuecY2z7r4mt1r17Y6M-kR3EsvCqxJwHLTPweiQLqdlowkYk_Bt5WklFp4SGd65-5eA==", "title": "mayoclinic.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEkA9JwRElu93jKLep6qC-p3VHsRPJy9T1F2hfPV0aecHU8NvSgm0qLl9DRYv8_iJMK7mKKqx-hDPZdEvd32u9Xfemwn_SZkwHVcQfmPLWySg-9EZDydKtdzOUhcw6QFCN3VyyWKSjUSCNgOgXKai3RVALLB3UvspR-O5wRgivPsRAZ5KL2j-kbieCU", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGk0IpIz4XlI1CsrLHsBPDeHvHXCWvOobSOhf8zZbsw1qUw-n9Hk1nnGwmprsG_ySj9n20jZbT7zhMU42W-J33WDc3UtkD9cBh0Y1LCshN-CbIXEQjwgJ-ldImmPSaYH1Hd3p7vGe6-zHMV_cDOEfycL6A8iwtSaP20xZ2a5RBf8DbebKc4Cg==", "title": "nsf.org" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHExnM4qGVm5rougeq5QhRpLJGOyiemy_5RxSA3jpYs0-_SuFzBvCBd7F9g4uohYlwOk-aBAmyewmYEJ2nbs6y8OVOBL7gEhdbYsbqzS7LHUgac-7htdXsnena0MAXICDFBcxa9qNAT", "title": "nsfsport.com" } ], "search_queries": [ "pre-workout supplements NSF Certified for Sport list", "NSF Certified for Sport pre-workout database", "what pre-workout supplements are NSF certified" ], "usage": { "input": 11, "output": 1001 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "Which pre-workout supplements are NSF Certified for Sport?", "run": 1, "started_at": "2026-10-30T15:46:17.390Z", "finished_at": "2026-10-30T15:47:10.604Z", "text": "Short answer — many pre-workout products are NSF Certified for Sport. Because the certification list changes and is SKU/lot-specific, check NSF’s live directory for the definitive, up‑to‑date result. (Below are representative pre‑workouts that appear in NSF’s Certified for Sport database as of October 30, 2026.)\n\nExamples (selected products shown on NSF’s Certified for Sport directory):\n- Cellucor — C4 Sport / C4 Performance Energy. ([cellucor.com](https://cellucor.com/products/c4-sport?country=US¤cy=USD&variant=40795416920126&utm_source=openai)) \n- Thorne — Pre‑Workout Elite (and other NSF-listed Thorne sport products). ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1509896&utm_source=openai)) \n- Klean Athlete — Klean Pre‑Workout and related sport products. ([kleanathlete.com](https://www.kleanathlete.com/klean-pre-workout-2.html?utm_source=openai)) \n- Momentous — Fuel (and most Momentous sport products are NSF/Informed‑Sport listed). ([livemomentous.com](https://www.livemomentous.com/products/momentous-fuel?utm_source=openai)) \n- ZOA+ Powder (ZOA pre‑workout powder). ([nsf.org](https://www.nsf.org/ca/en/news/dwayne-the-rock-johnsons-zoa-powder-earns-nsf-certified-for-sport-certification?utm_source=openai)) \n- Proven4 — P4 Pregame / Proven4 pre‑workout. ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1153873&utm_source=openai)) \n- PODIUM® — Athlete Preworkout (several flavors/SKUs listed). ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1722452&utm_source=openai)) \n- Bare Performance Nutrition — Flight / Endo Pump / PRE (flavor‑specific SKUs shown). ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?brand=&goal=Pre-Workout&type=)) \n- Garden of Life — Sport Organic Pre‑Workout Energy + Focus (NSF listings for certain flavors). ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?keyword=Garden+of+Life&utm_source=openai)) \n- ATHLEAN‑RX — X‑CITE pre‑workout SKUs. ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?brand=&goal=Pre-Workout&type=))\n\nWhy you should still verify before using:\n- NSF Certified for Sport is SKU- and lot‑specific (brands may certify only particular flavors/lot numbers). Always confirm the exact product flavor and lot/lot range in NSF’s live Certified for Sport product search. ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?brand=&goal=Pre-Workout&type=))\n\nWould you like me to:\n- Look up a specific pre‑workout flavor or lot and confirm whether it’s currently listed as NSF Certified for Sport? If so, tell me the exact product name and flavor (and—if available—the lot number), and I’ll check NSF’s database for you.", "sources": [ { "url": "https://cellucor.com/products/c4-sport?country=US¤cy=USD&variant=40795416920126&utm_source=openai", "title": "Cellucor C4 Sport® - NSF Certified Pre-Workout for Athletes" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1509896&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.kleanathlete.com/klean-pre-workout-2.html?utm_source=openai", "title": "Klean Pre-Workout" }, { "url": "https://www.livemomentous.com/products/momentous-fuel?utm_source=openai", "title": "Fuel – Momentous" }, { "url": "https://www.nsf.org/ca/en/news/dwayne-the-rock-johnsons-zoa-powder-earns-nsf-certified-for-sport-certification?utm_source=openai", "title": "Dwayne “The Rock” Johnson’s ZOA+ Powder Earns NSF Certified for… | NSF" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1153873&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1722452&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?brand=&goal=Pre-Workout&type=", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=Garden+of+Life&utm_source=openai", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?brand=&goal=Pre-Workout&type=", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?brand=&goal=Pre-Workout&type=", "title": "Certified Product Results | NSF International Certified for Sport®" } ], "search_queries": [ "NSF Certified for Sport pre-workout list", "C4 Sport NSF Certified for Sport C4 Performance Energy NSF listing", "Podium preworkout NSF Certified for Sport Podium Pre-Workout NSF listing", "Garden of Life Sport Organic Pre-Workout NSF Certified for Sport listing" ], "usage": { "input": 26923, "output": 2462 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "Which pre-workout supplements are NSF Certified for Sport?", "run": 2, "started_at": "2026-10-30T15:47:31.081Z", "finished_at": "2026-10-30T15:48:43.526Z", "text": "Short answer: NSF Certified for Sport® is awarded per product SKU and lot — so you need to check the NSF Certified for Sport database for the exact product/flavor and lot number. The NSF directory is the authoritative source. ([nsfsport.com](https://www.nsfsport.com/certified-products/?utm_source=openai))\n\nExamples of pre-workout products (not exhaustive) that appear in NSF’s Certified for Sport listings (each entry is a product/sku — always verify the flavor/lot you have):\n\n- Cellucor — C4 Sport (specific flavors/SKUs). ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1172236&utm_source=openai)) \n- Thorne — Pre-Workout Elite. ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1509896&utm_source=openai)) \n- Klean Athlete — Klean Pre-Workout. ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1379909&utm_source=openai)) \n- ZOA+ — ZOA+ Pre-Workout / ZOA+ Powder SKUs. ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?utm_source=openai)) \n- Proven4 — P4 / P4 Pregame (Proven4’s NSF-certified pre-workout and other sport products). ([nsfsport.com](https://www.nsfsport.com/certified-products/search-results.php?utm_source=openai)) \n- ATHLEAN‑RX — X‑CITE pre-workout SKUs. ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1641788&utm_source=openai)) \n- Momentous — Pre-Workout (certain flavors/SKUs). ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1623108&utm_source=openai)) \n- 1st Phorm — Megawatt pre-workout SKUs. ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1641591&utm_source=openai)) \n- PODIUM Nutrition — Athlete Preworkout / Fuse pre-workout SKUs. ([nsfsport.com](https://www.nsfsport.com/certified-products/listing-detail.php?id=1677266&utm_source=openai))\n\nNotes and next steps:\n- Certification can change (brands add/remove SKUs, and certification is batch/lot‑specific). Always confirm by searching the NSF Certified for Sport database for the exact product name, flavor/SKU and lot number before using it for competition or if you face drug-testing risk. ([nsfsport.com](https://www.nsfsport.com/certified-products/?utm_source=openai)) \n- If you’d like, tell me 1–3 specific pre‑workout products (brand + flavor or link) and I’ll look up whether those exact SKUs/lots are currently listed in NSF’s database and give you the matching NSF entries.", "sources": [ { "url": "https://www.nsfsport.com/certified-products/?utm_source=openai", "title": "Certified Products Search | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1172236&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1509896&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1379909&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?utm_source=openai", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?utm_source=openai", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1641788&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1623108&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1641591&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/listing-detail.php?id=1677266&utm_source=openai", "title": "Official Certified for Sport® Product Certification Listing | NSF Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/?utm_source=openai", "title": "Certified Products Search | NSF International Certified for Sport®" } ], "search_queries": [ "NSF Certified for Sport pre-workout", "NSF Certified for Sport C4 Sport Cellucor site:nsfsport.com", "NSF Certified for Sport Proven4 pre-workout site:nsfsport.com", "site:nsfsport.com Transparent Labs NSF Certified for Sport", "site:nsfsport.com Proven4 NSF Certified for Sport Proven4 pre-workout listing", "site:nsfsport.com 1st Phorm Megawatt NSF Certified for Sport", "site:nsfsport.com Podium pre-workout Podium Nutrition NSF Certified for Sport" ], "usage": { "input": 34615, "output": 3800 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "Which pre-workout supplements are NSF Certified for Sport?", "run": 1, "started_at": "2026-10-30T15:46:13.419Z", "finished_at": "2026-10-30T15:46:17.390Z", "text": "As of October 30, 2026, NSF’s Certified for Sport listings include these pre-workout products and flavors:\n\n- **1st Phorm Megawatt:** Berry Lemonade, Cherry Blast, Melon Berry, Sweet Peach[1][6]\n- **ATHLEAN-RX X-CITE:** Fruit Punch, Cherry Lemon Ice, Fresh Squeezed Orange, Icy Berry Blast, Jolly Watermelon Pucker, Rocket Pop, Sour Blue Raspberry, Sour Green Apple, Sunny Pink Lemonade[5][6]\n- **Bare Performance Nutrition PRE:** Blue Raspberry, Midnight Melon, Pink Lemonade[3][8]\n- **Designs for Sport Pre-Train Elite**[5]\n- **FORMUFIT by H-E-B Pre-Workout:** Blue Raspberry, Fruit Punch, Jamaica | Hibiscus with Lime[2][5]\n- **Garden of Life Sport Organic Pre-Workout Energy + Focus:** Blackberry and another listed flavor[6]\n- **PODIUM Athlete Pre / Athlete Preworkout:** Blue Raspberry, Sour Watermelon, Strawberry Watermelon[2][6]\n- **PODIUM Fuse 2025 Preworkout:** Sour Watermelon[6]\n- **ZOA+ Pre-Workout:** Cherry Lime, Fruit Punch, Wild Berry[1][9]\n\nNSF listings can change, and certification applies to specific products and flavors—not necessarily every item from a brand. Check the exact product in NSF’s current directory before buying or using it for sport[1][2].", "sources": [ { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements", "title": "Certified Product Results | NSF International ..." }, { "url": "https://info.nsf.org/certified/dietary/Listings.asp", "title": "NSF Product and Service Listings" }, { "url": "https://info.nsf.org/Certified/Dietary/Listings.asp?CompanyName=Nutrition&", "title": "NSF Product and Service Listings" }, { "url": "https://www.healthline.com/health/fitness-nutrition/best-pre-workout", "title": "6 Best Pre-Workout Supplements" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php", "title": "Certified Product Results | NSF International ..." }, { "url": "https://store.mayoclinic.com/thorne-advanced-pre-workout-nsf-certified-sport.html", "title": "Thorne Advanced Pre-Workout - NSF Certified Sport" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=caffeine", "title": "Certified Product Results - NSF Sport" }, { "url": "https://www.nsf.org/news/dwayne-the-rock-johnsons-zoa-powder-earns-nsf-certified-for-sport-certification", "title": "Dwayne “The Rock” Johnson's ZOA+ Powder Earns ..." }, { "url": "https://www.amazon.com/preworkout-nsf-certified/s?k=preworkout+nsf+certified", "title": "Preworkout Nsf Certified - Amazon.com" } ], "search_queries": [], "usage": { "input": 6298, "output": 313 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "Which pre-workout supplements are NSF Certified for Sport?", "run": 2, "started_at": "2026-10-30T15:47:27.506Z", "finished_at": "2026-10-30T15:47:31.081Z", "text": "The NSF Certified for Sport directory currently lists these pre-workouts, among others:\n\n- **1st Phorm Megawatt:** Berry Lemonade, Cherry Blast, Melon Berry, and Sweet Peach[1][6]\n- **ATHLEAN-RX X-CITE:** multiple flavors, including Cherry Lemon Ice, Fruit Punch, Icy Berry Blast, and Sour Green Apple[5][6]\n- **Bare Performance Nutrition PRE:** Blue Raspberry and Midnight Melon; also **Flight** in Blue Raspberry, Mango, Pink Lemonade, and Prickly Pear[3]\n- **FORMUFIT by H-E-B Pre-Workout:** Blue Raspberry, Fruit Punch, and Jamaica | Hibiscus with Lime[5]\n- **Garden of Life Sport Organic Pre-Workout Energy + Focus:** Blackberry and another listed flavor[6]\n- **Podium Athlete Pre / Athlete Preworkout:** several flavors, including Blue Raspberry, Sour Watermelon, and Strawberry Watermelon[2][6]\n- **ZOA+ Pre-Workout:** Cherry Lime, Fruit Punch, and Wild Berry[1][9]\n\nThe directory also lists other products, and certification applies to specific products and flavors—not automatically to every item from a brand. Check the current NSF listing for the exact product and flavor before buying.[1][2]", "sources": [ { "url": "https://www.nsfsport.com/certified-products/search-results.php?product_category=Dietary+Supplements", "title": "Certified Product Results | NSF International ..." }, { "url": "https://info.nsf.org/certified/dietary/Listings.asp", "title": "NSF Product and Service Listings" }, { "url": "https://info.nsf.org/Certified/Dietary/Listings.asp?CompanyName=Nutrition&", "title": "NSF Product and Service Listings" }, { "url": "https://www.healthline.com/health/fitness-nutrition/best-pre-workout", "title": "6 Best Pre-Workout Supplements" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=creatine", "title": "Certified Product Results | NSF International Certified for Sport®" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php", "title": "Certified Product Results | NSF International ..." }, { "url": "https://store.mayoclinic.com/thorne-advanced-pre-workout-nsf-certified-sport.html", "title": "Thorne Advanced Pre-Workout - NSF Certified Sport" }, { "url": "https://www.nsfsport.com/certified-products/search-results.php?keyword=caffeine", "title": "Certified Product Results - NSF Sport" }, { "url": "https://www.nsf.org/news/dwayne-the-rock-johnsons-zoa-powder-earns-nsf-certified-for-sport-certification", "title": "Dwayne “The Rock” Johnson's ZOA+ Powder Earns ..." }, { "url": "https://www.amazon.com/preworkout-nsf-certified/s?k=preworkout+nsf+certified", "title": "Preworkout Nsf Certified - Amazon.com" } ], "search_queries": [], "usage": { "input": 6298, "output": 268 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "What supplements are safe for drug-tested college athletes?", "run": 1, "started_at": "2026-10-30T15:46:31.692Z", "finished_at": "2026-10-30T15:46:45.179Z", "text": "For college athletes subject to drug testing, selecting supplements requires extreme caution due to the risk of inadvertently consuming banned substances. The NCAA does not approve any supplements, and athletes are held strictly liable for anything found in their system, regardless of how it got there. The safest approach involves prioritizing whole foods, consulting with athletic staff, and choosing third-party certified products when supplements are deemed necessary.\n\n### Understanding the Risks\nMany dietary supplements are not well-regulated and can be contaminated with banned substances not listed on the label. Such contamination can lead to a positive drug test, resulting in a minimum one-year suspension and loss of eligibility for the student-athlete. Even vitamins and minerals can pose a risk.\n\nThe NCAA bans several classes of drugs, including stimulants, anabolic agents, beta blockers (for certain sports), diuretics and masking agents, narcotics, peptide hormones, growth factors, related substances and mimetics, and hormone and metabolic modulators. It's important to remember that there is no exhaustive list, and any chemically or pharmacologically related substance is also banned.\n\n### Safer Supplement Choices and Certifications\nWhile no supplement is \"NCAA approved,\" certain third-party certifications can significantly reduce the risk of contamination. These programs test products for banned substances and verify label accuracy.\n\nHighly recommended certification programs include:\n* **NSF Certified for Sport®:** This program is recognized by major athletic organizations like the United States Anti-Doping Agency (USADA), Major League Baseball, and the NFL. It verifies that products do not contain unsafe levels of contaminants, prohibited substances (over 290 banned by major athletic organizations), or masking agents, and that what's on the label matches what's in the product. NSF Certified for Sport® also requires annual facility audits and ongoing product testing.\n* **Informed-Sport:** This global program tests every single batch of a product for banned substances before it is released to the market. It is recognized by sporting and anti-doping bodies and protects athletes from inadvertent doping.\n* **BSCG Certified Drug Free:** This program tests for over 475 banned substances in sport, as well as prescription, over-the-counter, and illicit drugs not banned in sport, offering comprehensive protection.\n* **USP Verified:** While not specifically focused on banned athletic substances, the USP Verified Mark indicates that a supplement contains the ingredients listed on the label in the declared strength and amounts, does not contain harmful levels of specified contaminants, and has been made according to FDA Good Manufacturing Practices.\n\n### Supplements with Good Evidence (with caution)\nSome supplements have strong evidence for their effectiveness, but even these must be carefully vetted through third-party certification:\n* **Carbohydrate and fluid:** Essential for long training sessions and events.\n* **Caffeine:** Can enhance performance, but NCAA and World Anti-Doping Agency (WADA) rules treat it differently, so athletes must check specific regulations. It is on the NCAA banned stimulant list with limits on usage.\n* **Nitrate (from beetroot juice):** Has evidence for endurance benefits.\n* **Buffers (beta-alanine and sodium bicarbonate):** Can aid in hard efforts of a few minutes. Beta-alanine is not on the WADA prohibited list.\n* **Creatine:** While the NIH rates it of little value for endurance sports, it is not on the WADA prohibited list.\n* **Protein supplements:** NCAA Division I rules allow schools to provide protein supplements if they contain no banned substances.\n* **Omega-3 fatty acids:** NCAA Division I rules allow schools to provide these.\n* **Vitamins and Minerals:** NCAA Division I rules allow schools to provide these. However, it's crucial to ensure they are third-party tested to avoid contamination. For example, some B-complex vitamins and iron supplements are available with NSF Certified for Sport.\n\n### Important Considerations:\n* **Consult Athletic Staff:** Student-athletes should always discuss any medications or supplements with their athletic trainer or designated athletics staff before use.\n* **Read Labels Carefully:** Always check every ingredient on the label against the current prohibited list. Avoid proprietary blends, which can obscure individual ingredient doses and potentially hide banned substances.\n* **No Guarantee:** Even with third-party testing, complete elimination of risk is impossible. All supplements are taken at the student-athlete's own risk.\n* **Food First:** Most athletes can meet their nutritional needs through a healthy and varied diet.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQFxJHUQ6lBe2mdRSVLwIUo1ebcjjJlv_IpTSNL94LtjWFwjSNxWapU9CilPsQEBRLEYXdWjuDOkHsETDFuYN3wrLLCJSGrHW40Jns-zV0LySq5o90UFiK0U5ZBm1rT4PLt9D0swO9sALS7BnGo0_KfDNR4u3Cn1qLREQqUsL38H", "title": "varsitystack.com" }, { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQEATfbHXLoBp4NxGMb0E5ng0dY7ihUstK2pfuLoTSFaWLHPmU0vB5MynYhpKFMI6W_7Rds-e4ZxVr-6sIvkRT366yGwzLOYy-ZXm-0mrB24XlAuC-ZaMtdcnbnP6Vlv15afdVpaRkbaR8WjOF703asKt10=", "title": "bscg.org" }, { "url": 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"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGVKp62GpT80ff3lTJ13ciVNzpXUCSPqlIlF8eTm5-J4bqwXsQl6LG_z84HVnt6JvdARTYgWlozNcip01g3dNES68ph0DRdu8qYh5qHXfm3e592VwU62kEJIJbHvSYELDDzzcdMI7Wb8xgEpsYiQaV-aw==", "title": "healthline.com" } ], "search_queries": [ "NCAA banned substances list", "safe supplements for college athletes drug tested", "NSF Certified for Sport supplements", "Informed-Sport supplements", "USP certified supplements athletes" ], "usage": { "input": 11, "output": 1325 }, "error": null }, { "engine": "gemini", "engine_label": "Gemini API, gemini-2.5-flash with Google Search grounding", "search": "Google Search grounding", "gateway_model": "google/gemini-2.5-flash", "provider_model": "google/gemini-2.5-flash", "prompt": "What supplements are safe for drug-tested college athletes?", "run": 2, "started_at": "2026-10-30T15:47:49.584Z", "finished_at": "2026-10-30T15:48:01.472Z", "text": "For drug-tested college athletes, ensuring the safety of supplements is paramount due to the strict regulations and potential for inadvertent doping violations. The most crucial step is to avoid any substances on banned lists and to choose supplements that have been third-party certified for sport.\n\n**Understanding Banned Substances**\nThe National Collegiate Athletic Association (NCAA) bans several classes of drugs, and athletes are responsible for any substance found in their system, regardless of how it got there. These banned classes include:\n* Stimulants (e.g., amphetamine, cocaine, ephedrine, methylphenidate, synephrine). Exceptions exist for phenylephrine and pseudoephedrine.\n* Anabolic agents (e.g., androstenedione, boldenone, clenbuterol, DHEA, testosterone, SARMs like ostarine and ligandrol).\n* Alcohol and beta-blockers (banned for rifle and golf only).\n* Diuretics and masking agents (e.g., furosemide, hydrochlorothiazide, spironolactone).\n* Narcotics.\n* Cannabinoids.\n* Peptide hormones, growth factors, related substances, and mimetics (e.g., hGH, EPO, IGF-1).\n* Hormone and metabolic modulators (e.g., aromatase inhibitors, SERMs, GW501516/Cardarine).\n* Beta-2 agonists (e.g., clenbuterol, salbutamol, formoterol), with some inhaled exceptions requiring documentation.\n\nIt's important to note that this is not an exhaustive list, and any chemically related substances are also banned. The World Anti-Doping Agency (WADA) also publishes an annual Prohibited List, which is updated regularly and categorizes prohibited substances and methods.\n\n**Reducing Risk with Certified Supplements**\nDue to the risk of contamination and mislabeling in the supplement industry, college athletes should prioritize supplements that have been third-party tested and certified. Key certification programs recognized for their rigor include:\n* **NSF Certified for Sport®:** This program is recognized by the United States Anti-Doping Agency (USADA) and tests products for over 290 banned substances, unsafe levels of contaminants, and verifies label accuracy. It also ensures products are manufactured in GMP-certified facilities.\n* **Informed Sport:** This is a global testing and certification program that tests every single batch of a product for banned substances before it's released to the market, protecting athletes from inadvertent doping.\n* **BSCG Certified Drug Free®:** This program tests for over 475 banned substances in sport, as well as prescription, over-the-counter, and illicit drugs.\n\nWhile these certifications significantly reduce the risk, no supplement can be guaranteed 100% risk-free. Athletes should always:\n* Consult with their athletic department staff or healthcare provider before taking any supplement.\n* Be aware that even common supplements can be contaminated with banned substances not listed on the label.\n* Avoid supplements that claim to increase testosterone or growth hormone levels, especially for teenagers, as these can be naturally high and such supplements often contain banned substances.\n* Verify that the specific lot number on the supplement package matches the certified lot numbers listed in the third-party certification database.", "sources": [ { "url": "https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQGm48E0mLuiJjn1i1NAS2hvFgrnvIbrdCy94uOg9PHu9uFxJjMTo-WOqi_tF3hdOkgLmO5Y4s-AMK4HU79C9m_n9GyDvoopqO8jw7cTqYic-nP5setfdV7oonhxBvJ5I43BbkANY8Tmgdtc8c02lfWcgn8f2dnQUpbsYFoG-TzuqNQoHr-2PQ==", "title": "wou.edu" }, { "url": 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"https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHueG4_RmjYmBRLJpCCwEuCJ124RG9rN9hwnEeR_xL0AIRubBxto-OynApHTD7fRhN4uqCuZqo8Tj-v6iyb44P0gdpuRZ5zAbVCUgYMxFWFxJV8tBkHJ9TrJHk6ZtBpmXR1esMv_Q==", "title": "ita.sport" } ], "search_queries": [ "safe supplements for drug-tested college athletes", "NCAA banned substances list", "NSF Certified for Sport supplements", "informed-sport certified supplements", "WADA prohibited list supplements" ], "usage": { "input": 11, "output": 1058 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "What supplements are safe for drug-tested college athletes?", "run": 1, "started_at": "2026-10-30T15:46:31.264Z", "finished_at": "2026-10-30T15:47:54.672Z", "text": "Short answer — no supplement is 100% “safe” for a drug‑tested college athlete, but you can greatly lower risk by (1) using a food‑first approach, (2) running any product past your team’s sports‑medicine staff, and (3) choosing only third‑party batch‑tested products from reputable programs (NSF Certified for Sport, Informed‑Sport/Informed‑Choice, BSCG). The NCAA also reminds student‑athletes that there are no NCAA‑approved supplements and that supplements have caused positive tests. ([ncaa.org](https://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/banned-substances/?utm_source=openai))\n\nWhat “low‑risk” supplements are commonly used (with caveats)\n- Protein powder (whey or plant): useful when dietary protein is inadequate. Choose single‑ingredient products and a certified batch if you’re drug‑tested. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28642676/?utm_source=openai)) \n- Creatine monohydrate: the most studied, generally safe and effective for high‑intensity performance when used appropriately. Still check with your team and use certified brands/batches. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/5469049/?utm_source=openai)) \n- Caffeine (as a legal aid): ergogenic but the NCAA has a urinary threshold — very large intakes could cause a positive under NCAA protocol (threshold historically reported as 15 µg/mL). Check timing and dose with sports staff. ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_DrugTestingManual.pdf?utm_source=openai)) \n- Vitamin D, iron (if deficient), a basic multivitamin: use only if testing shows need or your clinician recommends it. Get lab‑confirmed deficiency treated under medical supervision. ([ods.od.nih.gov](https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/?uid=b9fe876460209s16&utm_source=openai)) \n- Beetroot/nitrate, beta‑alanine and some others: there is some evidence for performance benefit in specific events, but effects are variable and dose/timing matters — treat these as conditional and verify product safety. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC7494956/?utm_source=openai))\n\nHigh‑risk supplements / ingredients to avoid\n- Prohormones, SARMs, designer stimulants (DMAA, DMHA, DMBA), “fat‑burner” or aggressive weight‑loss blends, many multi‑ingredient “proprietary blends” and untested “natural” performance enhancers. These classes have repeatedly caused positive tests. If it’s marketed as a fast shortcut to big gains, it’s high risk. ([ncaa.com](https://www.ncaa.com/sites/default/files/files/NCAA%20Banned%20Drug%20List.pdf?utm_source=openai))\n\nHow to reduce your risk (practical checklist)\n1. Tell your sports‑medicine staff about every supplement and medication before you take it — NCAA policy explicitly advises this. Have them check the product. ([ncaa.org](https://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/banned-substances/?utm_source=openai)) \n2. Prefer products that are batch‑tested and listed on a reputable database: NSF Certified for Sport, Informed‑Sport / Informed‑Choice (LGC), or BSCG Certified Drug Free. These lower (but don’t eliminate) contamination risk. Verify the specific lot/batch number and certificate before using. ([nsf.org](https://www.nsf.org/consumer-resources/articles/certified-for-sport-program?utm_source=openai)) \n3. Avoid multi‑ingredient preworkouts and proprietary blends. Use single‑ingredient, transparent labels. \n4. Keep receipts, the product label, and the third‑party certificate or batch number in case of a query. \n5. Understand that even certified products carry some residual risk — only complete abstinence from supplements removes that risk entirely. USADA and NCAA resources make this clear. ([usada.org](https://www.usada.org/wp-content/uploads/2024-Clean-Sport-Handbook.WEB_.pdf?utm_source=openai))\n\nIf you want, I can:\n- Check a specific product and its lot number (if you have them) against certification databases, or \n- Give a tailored, evidence‑based short list (e.g., “low‑risk protein + creatine brand X certified lots”) if you tell me your sport, usual diet, and any known deficiencies.\n\nWould you like me to check a particular product or brand for certification and risk?", "sources": [ { "url": "https://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/banned-substances/?utm_source=openai", "title": "NCAA Banned Substances - NCAA.org - The Official Website of the NCAA" }, { "url": "https://pubmed.ncbi.nlm.nih.gov/28642676/?utm_source=openai", "title": "International Society of Sports Nutrition Position Stand: protein and exercise." }, { "url": "https://pmc.ncbi.nlm.nih.gov/articles/5469049/?utm_source=openai", "title": "International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine - PMC" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_DrugTestingManual.pdf?utm_source=openai", "title": "NCAA DRUG-TESTING PROGRAM PROTOCOL 2025-26" }, { "url": "https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/?uid=b9fe876460209s16&utm_source=openai", "title": "Vitamin D - Health Professional Fact Sheet" }, { "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC7494956/?utm_source=openai", "title": "Ergogenic Effect of Nitrate Supplementation: A Systematic Review and Meta-analysis - PMC" }, { "url": "https://www.ncaa.com/sites/default/files/files/NCAA%20Banned%20Drug%20List.pdf?utm_source=openai", "title": "NCAA Banned Drug List" }, { "url": "https://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/banned-substances/?utm_source=openai", "title": "NCAA Banned Substances - NCAA.org - The Official Website of the NCAA" }, { "url": "https://www.nsf.org/consumer-resources/articles/certified-for-sport-program?utm_source=openai", "title": "Certified for Sport® Program | NSF" }, { "url": "https://www.usada.org/wp-content/uploads/2024-Clean-Sport-Handbook.WEB_.pdf?utm_source=openai", "title": "CLEAN SPORT" } ], "search_queries": [ "NCAA banned substances list 2026 NCAA drug-testing banned substances list site:ncaa.org", "Are creatine and protein allowed by NCAA 'permissible and nonpermissible nutritional supplements' NCAA creatine protein", "International Society of Sports Nutrition position on creatine 2017 creatine monohydrate review ISSN creatine position stand", "NCAA caffeine urinary 15 micrograms per mL limit 'caffeine' site:ncaa.org", "BSCG Certified Drug Free certification 'BSCG' 'Certified Drug Free' supplements athletes", "Informed Sport certification LGC 'Informed Sport' 'Informed Choice' athletes 'what it means' site:informed-sport.com", "LGC Informed-Sport 'Informed Sport' certification LGC", "beetroot juice performance nitrate athletes evidence review 'beetroot juice' 'performance' review 2017 2020 'nitrate' 'athletes' PubMed", "NIH Office of Dietary Supplements vitamin D fact sheet athletes 'vitamin D' ODS" ], "usage": { "input": 40059, "output": 3635 }, "error": null }, { "engine": "openai", "engine_label": "OpenAI API, gpt-5-mini with the web search tool", "search": "OpenAI web_search tool", "gateway_model": "openai/gpt-5-mini", "provider_model": "openai/gpt-5-mini", "prompt": "What supplements are safe for drug-tested college athletes?", "run": 2, "started_at": "2026-10-30T15:47:47.199Z", "finished_at": "2026-10-30T15:48:20.614Z", "text": "Short answer\n- No supplement is 100% “safe” for a drug‑tested college athlete because supplements can be mislabeled or contaminated. Use food first and only use supplements that are third‑party batch‑tested for sport (NSF Certified for Sport, Informed‑Sport/Informed‑Choice where appropriate) and cleared by your team medical/nutrition staff. ([usada.org](https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/?utm_source=openai))\n\nWhat the NCAA says (important distinction)\n- The NCAA maintains a banned‑substance list (testing positive for a banned substance can cost eligibility) and also has rules about which supplement categories an athletics department may or may not provide. Read both the banned list and your school’s policy before using anything. ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/2025-26/2025-26NCAA_BannedSubstances.pdf?utm_source=openai))\n\nSupplements that are commonly accepted as lower risk (still: use certified products and check with team staff)\n- Food‑first: lean protein, dairy, eggs, fish, whole grains, fruits/vegetables — these are safest. ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai)) \n- Supplements frequently used with lower risk (when third‑party batch‑tested and approved by your team): \n - Basic multivitamin/mineral (for documented deficiency or dietary gaps). ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai)) \n - Vitamin D (if serum level low). ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai)) \n - Iron or calcium only if labs show deficiency and prescribed. ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai)) \n - Omega‑3 fish oil (third‑party tested product). ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai)) \n - Protein powders (whey, plant protein) — but buy only products with a sport certification. ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai)) \n - Carbohydrate/electrolyte drinks and sports bars (NCAA lists these as permissible product categories). ([web3.ncaa.org](https://web3.ncaa.org/lsdbi/bylaw?refDate=20260805&ruleId=1879&utm_source=openai))\n\nNotes about creatine and “impermissible” products\n- Creatine: it is commonly used and is not on the NCAA banned substance list, but many NCAA policies classify creatine (and some other ergogenic aids) as “impermissible” for an athletics department to provide/endorse. That means you can often take it on your own, but your team cannot distribute it — and you should still use a batch‑tested product and check with team medical staff. ([s3.us-east-2.amazonaws.com](https://s3.us-east-2.amazonaws.com/sidearm.nextgen.sites/wsu.sidearmsports.com/documents/2016/6/19/3221040.pdf?utm_source=openai))\n\nHigh‑risk supplements to avoid (common causes of positive tests)\n- Anything marketed as a prohormone, SARM, “anabolic,” designer steroid, many fat‑burners, “legal stimulants” (DMAA, DMHA), or products promising huge gains or sexual enhancement. These categories frequently contain banned or designer drugs and have caused positive tests. Always cross‑check the NCAA/WADA lists. ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/2025-26/2025-26NCAA_BannedSubstances.pdf?utm_source=openai))\n\nHow to reduce your risk (practical checklist)\n1. Use food first; supplements only for documented needs or with clear benefit. ([ncaaorg.s3.amazonaws.com](https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai)) \n2. Talk to your team physician, athletic trainer, or sports RD before starting anything. Your school must educate athletes about banned substances. ([ncaa.org](https://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/drug-testing-program/?utm_source=openai)) \n3. Only use products that are batch‑tested for sport (NSF Certified for Sport, Informed‑Sport/Informed Choice — prefer programs that test each batch and allow batch lookup). These reduce but do not eliminate risk. Keep the product label and batch/lot number. ([nsf.org](https://www.nsf.org/consumer-resources/articles/supplement-vitamin-certification?utm_source=openai)) \n4. Avoid proprietary blends and products with long ingredient lists you don’t recognize. If a product name or an ingredient looks like a drug or research chemical, don’t take it. ([usada.org](https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/?utm_source=openai)) \n5. Keep receipts, the supplement label, and the lot number — if you ever test positive you may need to show source information. ([usada.org](https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/?utm_source=openai))\n\nIf you want help\n- Tell me the exact product name and lot/batch number (or brand + product). I can look up whether it shows a sport certification and whether the certification program lists that batch as tested. (If you want me to check your school’s specific policy, tell me the school.) ([nsf.org](https://www.nsf.org/consumer-resources/articles/supplement-vitamin-certification?utm_source=openai))\n\nWould you like me to check any specific supplement or brand for a sport certification or look up your school’s supplement policy?", "sources": [ { "url": "https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/?utm_source=openai", "title": "How to Reduce Your Risk from Supplements | USADA" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/2025-26/2025-26NCAA_BannedSubstances.pdf?utm_source=openai", "title": "2025-26 NCAA Banned Substances" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai", "title": "Understanding" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai", "title": "Understanding" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai", "title": "Understanding" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai", "title": "Understanding" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai", "title": "Understanding" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai", "title": "Understanding" }, { "url": "https://web3.ncaa.org/lsdbi/bylaw?refDate=20260805&ruleId=1879&utm_source=openai", "title": "Legislative Services Database - LSDBi" }, { "url": "https://s3.us-east-2.amazonaws.com/sidearm.nextgen.sites/wsu.sidearmsports.com/documents/2016/6/19/3221040.pdf?utm_source=openai", "title": "NCAA Drug Testing Policy - 96" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/2025-26/2025-26NCAA_BannedSubstances.pdf?utm_source=openai", "title": "2025-26 NCAA Banned Substances" }, { "url": "https://ncaaorg.s3.amazonaws.com/ssi/substance/SSI_UnderstandingDietarySupplementsFactSheet.pdf?utm_source=openai", "title": "Understanding" }, { "url": "https://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/drug-testing-program/?utm_source=openai", "title": "NCAA Drug Testing Program - NCAA.org - The Official Website of the NCAA" }, { "url": "https://www.nsf.org/consumer-resources/articles/supplement-vitamin-certification?utm_source=openai", "title": "Dietary Supplement and Vitamin Certification | NSF" }, { "url": "https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/?utm_source=openai", "title": "How to Reduce Your Risk from Supplements | USADA" }, { "url": "https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/?utm_source=openai", "title": "How to Reduce Your Risk from Supplements | USADA" }, { "url": "https://www.nsf.org/consumer-resources/articles/supplement-vitamin-certification?utm_source=openai", "title": "Dietary Supplement and Vitamin Certification | NSF" } ], "search_queries": [ "NCAA policy supplements guidance drug testing athletes supplements NCAA", "Informed-Sport certification what it means athletes Informed-Sport Informed-Choice difference" ], "usage": { "input": 13639, "output": 2581 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "What supplements are safe for drug-tested college athletes?", "run": 1, "started_at": "2026-10-30T15:46:27.545Z", "finished_at": "2026-10-30T15:46:31.692Z", "text": "**No supplement can be guaranteed safe for a drug-tested athlete.** The NCAA does not approve supplements, and athletes are responsible for prohibited substances found in products—even when they aren’t listed on the label.[1]\n\nIf a supplement is genuinely needed, reduce risk by:\n\n- **Ask your athletic department’s sports dietitian, team physician, or compliance staff to review the exact product before taking it.** NCAA guidance specifically recommends this.[1]\n- **Choose a product certified for sport**—USADA recommends NSF Certified for Sport—and verify the product and, where applicable, its batch in the certifier’s official database. Certification lowers risk but does not eliminate it.[3]\n- **Avoid high-risk categories** such as pre-workout blends, weight-loss products, muscle builders, testosterone boosters, and products containing SARMs or prohormones; these are particularly associated with contamination or prohibited ingredients.[6]\n- **Use supplements only for a clear reason.** Depending on individual needs, a qualified sports dietitian may consider basics such as protein or electrolytes, or specific supplements like creatine or caffeine—but the exact product and athlete’s circumstances matter.[2][6]\n\nFor the lowest possible risk of a positive test, don’t use supplements; even certified products are not risk-free.[3]", "sources": [ { "url": "http://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/banned-substances/", "title": "NCAA Banned Substances - NCAA.org - Official Athletics Website" }, { "url": "https://ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-HealthProfessional/", "title": "Dietary Supplements for Exercise and Athletic Performance" }, { "url": "https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/", "title": "How to Reduce Your Risk from Supplements | USADA" }, { "url": "https://www.usada.org/wp-content/uploads/supplement-guide.pdf", "title": "supplement GUIDE" }, { "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC11684747/", "title": "Collegiate Student-Athletes' Use and Knowledge of Third ..." }, { "url": "https://onlinelibrary.wiley.com/doi/abs/10.1155/tsm2/5919439", "title": "onlinelibrary.wiley.com › doi › absReducing the Risk of Unintentional Doping From Supplements: A ..." }, { "url": "https://www.nccih.nih.gov/health/bodybuilding-and-performance-enhancement-supplements", "title": "Bodybuilding and Performance Enhancement Supplements | NCCIH" }, { "url": "https://www.usada.org/dietary-supplements/screen-dietary-supplements/", "title": "Screen Your Dietary Supplements | U.S. Anti-Doping Agency" }, { "url": "https://ods.od.nih.gov/api/?resourcename=ExerciseAndAthleticPerformance&readinglevel=Consumer&outputformat=HTML", "title": "Dietary Supplements for Exercise and Athletic Performance: Fact Sheet for Consumers" }, { "url": "https://www.bscg.org/assets/images/bscg-e-book-for-ncaa-collegiate-athletes-winner-takes-all.pdf", "title": "EVERYTHING A COLLEGIATE ATHLETE NEEDS TO" } ], "search_queries": [], "usage": { "input": 6381, "output": 265 }, "error": null }, { "engine": "sonar", "engine_label": "Perplexity Sonar API", "search": "Perplexity built-in web search", "gateway_model": "perplexity/sonar", "provider_model": "perplexity/sonar", "prompt": "What supplements are safe for drug-tested college athletes?", "run": 2, "started_at": "2026-10-30T15:47:42.859Z", "finished_at": "2026-10-30T15:47:47.199Z", "text": "**No supplement is guaranteed safe for a drug-tested athlete.** The lowest-risk choice is not to use supplements unless there’s a clear medical or sports-nutrition need. The NCAA says it does not approve supplements, contamination can cause a positive test, and athletes are responsible for what they consume.[1]\n\nIf a supplement is needed:\n\n- **Check it with your athletic department’s sports dietitian, athletic trainer, or team physician before taking it.**[1]\n- Choose a **single-ingredient product** certified for sport—such as NSF Certified for Sport—and verify the exact product and batch in the certifier’s official database. Certification lowers risk but cannot eliminate it.[3][6]\n- Consider only products with a specific purpose, such as correcting a clinician-identified nutrient deficiency or using a sports-food product for practical fueling. Creatine monohydrate or caffeine may have evidence for some athletes, but neither is automatically appropriate or risk-free.[2][6]\n- Avoid multi-ingredient pre-workouts, muscle-building or weight-loss products, “testosterone boosters,” and anything containing SARMs or prohormones; these categories carry elevated contamination or banned-substance risks.[3][6]\n\nKeep the package, batch number, and receipt, and document what you use. For NCAA athletes, the NCAA’s current banned-substances list and your school’s staff—not a product label or coach’s recommendation alone—should guide the decision.[1]", "sources": [ { "url": "http://www.ncaa.org/what-we-do/health-safety-and-performance/anti-doping-and-substance-misuse-prevention/banned-substances/", "title": "NCAA Banned Substances - NCAA.org - Official Athletics Website" }, { "url": "https://ods.od.nih.gov/factsheets/ExerciseAndAthleticPerformance-HealthProfessional/", "title": "Dietary Supplements for Exercise and Athletic Performance" }, { "url": "https://www.usada.org/spirit-of-sport/how-to-reduce-your-risk-from-supplements/", "title": "How to Reduce Your Risk from Supplements | USADA" }, { "url": "https://www.usada.org/wp-content/uploads/supplement-guide.pdf", "title": "supplement GUIDE" }, { "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC11684747/", "title": "Collegiate Student-Athletes' Use and Knowledge of Third ..." }, { "url": "https://onlinelibrary.wiley.com/doi/abs/10.1155/tsm2/5919439", "title": "onlinelibrary.wiley.com › doi › absReducing the Risk of Unintentional Doping From Supplements: A ..." }, { "url": "https://www.nccih.nih.gov/health/bodybuilding-and-performance-enhancement-supplements", "title": "Bodybuilding and Performance Enhancement Supplements | NCCIH" }, { "url": "https://www.usada.org/dietary-supplements/screen-dietary-supplements/", "title": "Screen Your Dietary Supplements | U.S. Anti-Doping Agency" }, { "url": "https://ods.od.nih.gov/api/?resourcename=ExerciseAndAthleticPerformance&readinglevel=Consumer&outputformat=HTML", "title": "Dietary Supplements for Exercise and Athletic Performance: Fact Sheet for Consumers" }, { "url": "https://www.bscg.org/assets/images/bscg-e-book-for-ncaa-collegiate-athletes-winner-takes-all.pdf", "title": "EVERYTHING A COLLEGIATE ATHLETE NEEDS TO" } ], "search_queries": [], "usage": { "input": 6381, "output": 298 }, "error": null } ] }