Int J Sport Nutr Exerc Metab. 2001 Jun;11(2):258-63.

Nutritional supplements as a source for positive doping cases?

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Institute of Sports Sciences, Federal Office of Sports, CH-2532 Magglingen, Switazerland.

Abstract

We report the findings of the analysis of 75 different nutritional supplements bought through the internet. 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.

PMID:: 11402257; [PubMed - indexed for MEDLINE]

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