Hormonal
Consuming soy milk as a post-resistance exercise recovery beverage produces acute circulating sex hormone profiles (testosterone, estrogen, progesterone) equivalent to dairy milk, refuting concerns that soy phytoestrogens negatively impact male anabolic potential.
If you are a male resistance trainer concerned about 'feminizing' effects, you can safely use soy milk as a post-workout recovery drink. This pilot study shows it affects your sex hormones (testosterone, estrogen, progesterone) just as much as dairy milk does, meaning it won't hinder your muscle-building efforts compared to dairy.
These findings suggest that consumption of dairy milk and soy milk have comparable acute effects on circulating sex hormones following RET.
Why this rating
The study is a small, double-blinded, randomized crossover pilot trial (n=6) with no control group, limiting statistical power and generalizability.
Source
Acute Effects of Dairy or Soy Milk on Sex Hormones Following Resistance Exercise in Males: A Randomized, Crossover Pilot Trial
Joel C. Craddock et al. · Cureus · 2024
DOI 10.7759/cureus.59972
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