Kamber, M., Baume, N., Saugy, M., & Rivier, L. (2001). Nutritional supplements as a source for positive doping cases? International Journal of Sports Nutrition and Exercise Metabolism, 11, 258-263.

Findings of the analysis of 75 different nutritional supplements bought through the Internet were reported. Seven products (all from the class of prohormones) contained other hormone substances than indicated on the labels, and two further products contained ephedrine and caffeine without a clear indication on the labels.

Implication. The labeling of nutritional supplements is insufficiently inclusive to be trusted for determining whether banned substances are present. Governmental requirements often require descriptions only if substances are included above a base-level. However, those levels usually far exceed the levels that would be revealed in a urine test to record a positive result. The use of nutritional supplements is a dangerous activity for athletes likely to be tested for sport drugs.

Return to Table of Contents for this issue.