Section 46
Chapter 45,364

Beta-hydroxy beta-methylbutyrate (HMB) supplementation does not influence the urinary testosterone: epitestosterone ratio in healthy males

Slater, G.J.; Logan, P.A.; Boston, T.; Gore, C.J.; Stenhouse, A.; Hahn, A.G.

Journal of Science and Medicine in Sport 3(1): 79-83


ISSN/ISBN: 1440-2440
PMID: 10839231
DOI: 10.1016/s1440-2440(00)80050-x
Accession: 045363618

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Six healthy, recreationally active, males undertook two weeks supplementation with beta-Hydroxy beta-Methylbutyrate (HMB). Supplementation was in capsule form with 3 g consumed each day in three even doses of 1 g at main meals. Mid stream urine samples were collected prior to, as well as, after one and two weeks of supplementation and subsequently analysed for testosterone and epitestosterone. The testosterone: epitestosterone ratio was not affected by 2 weeks of HMB supplementation (mean +/- SD baseline 1.02 +/- 0.68; week one 0.98 +/- 0.61; week two 0.92 +/- 0.62). Our results support the claim that supplementation with HMB at the doses recommended will not influence the urinary testosterone: epitestosterone ratio and thus not breach doping policies of the International Olympic Committee for exogenous testosterone or precursor administration.

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