Decreased Testosterone and Libido With Severe Weight Loss.

Strauss, Richard H; Lanese, Richard R; Malarkey, William B · Phys Sportsmed · 1993

case_report · Level V

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Abstract

In brief A college wrestler's weight, body brief fat, and hormone levels were measured during 2 years of competition. Marked weight loss during the initial season was associated with lower serum levels of testosterone and several other hormones, as well as a decrease in reported sexual activity. All values returned to normal after the season. The following year, with less weight loss, the wrestler had only a transient decrease in testosterone and prolactin and reported no decline in sexual activity. Body fat greater than 5% seemed essential to maintaining normal endocrine function.