Research
Adherence
Dietary supplements carry a risk of positive doping results due to contamination or inaccurate labeling, and athletes should consult sports nutrition professionals.
Always assume supplements may be contaminated with prohibited substances. Consult a sports nutrition professional. Use third-party tested products. The risk of a positive doping test is real.
StrongSupportsHIGH confidence
There are potential costs associated with all dietary supplements, including the risk of a positive doping result as a consequence of the presence of prohibited substances that are not declared on the label.
Why this rating
The paper cites multiple studies showing contamination and inaccurate labeling.
Source
The use of dietary supplements by athletes
Ronald J. Maughan et al. · Journal of Sports Sciences · 2007
narrative_review · n=310Cited 307×
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