Research
Adherence
Dietary supplements carry a significant risk of inadvertent doping violations due to contamination, despite widespread use among athletes.
Be extremely cautious with dietary supplements. Many are contaminated with banned substances. Consult a qualified professional and use third-party tested supplements to avoid accidental doping violations.
GoodRefutesHIGH confidence
In 2000–2001, a study of 634 different supplements from 13 countries found that 94 (14.8%) contained undeclared steroids, banned by WADA.
Why this rating
Supported by multiple studies showing contamination rates.
Source
Role of nutrition in performance enhancement and postexercise recovery
Kathryn L. Beck et al. · Open Access Journal of Sports Medicine · 2015
narrative_reviewCited 216×
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