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Soy protein supplementation is not androgenic or estrogenic in college-aged men when combined with resistance exercise training.


ABSTRACT: It is currently unclear as to whether sex hormones are significantly affected by soy or whey protein consumption. Additionally, estrogenic signaling may be potentiated via soy protein supplementation due to the presence of phytoestrogenic isoflavones. Limited also evidence suggests that whey protein supplementation may increase androgenic signaling. Therefore, the purpose of this study was to examine the effects of soy protein concentrate (SPC), whey protein concentrate (WPC), or placebo (PLA) supplementation on serum sex hormones, androgen signaling markers in muscle tissue, and estrogen signaling markers in subcutaneous (SQ) adipose tissue of previously untrained, college-aged men (n?=?47, 20?±?1?yrs) that resistance trained for 12 weeks. Fasting serum total testosterone increased pre- to post-training, but more so in subjects consuming WPC (p?

SUBMITTER: Haun CT 

PROVIDER: S-EPMC6057888 | BioStudies | 2018-01-01

REPOSITORIES: biostudies

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