NSF International’s Certified for Sport® helps athletes, dieticians, coaches and consumers around the world make safer decisions when choosing sports supplements

What People Are Saying

Certified for Sport® gives both my athletes and myself the reassurance we need that the dietary supplements we choose have been tested and certified for quality, purity and safety.

Leslie Bonci, MPH, RD, CSSD, LDN, Kansas City Chiefs Sports Dietitian, Klean Athlete® Sports Nutrition Advisor

We recommend that athletes who choose to use supplements despite the risks can reduce this risk by using supplements that are Certified for Sport®.

The U.S. Anti-Doping Agency

My health and my body are my biggest assets. I need the highest possible level of safety and the assurance that everything I take is clean and tested.

Marcel Hirscher, two-time Olympic gold medalist and winner of seven consecutive Alpine skiing World Cup titles

Cyclist on a sports track

Why Choose Certified Supplements?

NSF Certified for Sport NSF International’s global Certified for Sport® program helps athletes, dieticians, coaches and consumers make safer decisions when choosing sports supplements. The Certified for Sport® certification is the only independent third-party certification program recognized by the United States Anti-Doping Agency (USADA), Major League Baseball, the National Hockey League and the Canadian Football League. Certified for Sport® is also recommended by the NFL, NBA, PGA, LPGA, CCES, CPSDA, iNADO, Ironman, NASCAR, Taylor Hooton Foundation and many other organizations seeking to mitigate the risks of contaminated dietary supplements.

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