Dietary Supplements for Athletes

Ergogenic Aids

USDA. NAL. Food and Nutrition Information Center.

Learn about potential dangers of ergogenic aids, substances that are claimed to help enhance energy utilization and performance in the body.


MedlinePlus: Creatine

DHHS. NIH. National Library of Medicine.

Learn about creatine, including what it is, use among athletes, interactions, safety concerns, and more. Also available in Spanish.


MedlinePlus: Caffeine

DHHS. NIH. National Library of Medicine.

Learn about caffeine, including what it is, how it effects users, how much is too much, and why it can cause dehydration - especially in athletes. Also available in Spanish.


DrugFacts: Anabolic Steroids

DHHS. NIH. National Institute on Drug Abuse.

Learn about anabolic steroid use among athletes and the potential health risks associated with it. Also available in Spanish.


MedlinePlus: Anabolic Steroids

DHHS. NIH. National Library of Medicine.

Learn about anabolic steroids, including what they are, use among athletes, interactions, safety concerns, and more. Also available in Spanish.


Ephedra and Ephedrine Alkaloids for Weight Loss and Athletic Performance

DHHS. NIH. Office of Dietary Supplements.

Learn about the safety of ephedra and ephedrine alkaloids for weight loss or to enhance athletic performance.