Whey’s Better Than Soy For Men

Whey’s Better Than Soy For Men If you spend a significant amount of time in the weight room, you've no doubt heard the myths about soy protein messing with male testosterone production. A study published in the Journal of the American College of Nutrition suggests there may be some truth to this hypothesis.

Researchers had 10 experienced male weight lifters in their 20s supplement with 20 grams of whey or soy protein every day for 14 days before performing 6 sets of 10 rep squats with resistance set at 80% of one rep max. Not only did soy protein suppress the testosterone response to resistance training, whey protein suppressed production of the catabolic hormone cortisol during recovery.

True Strength Moment: Soy is a complete protein and a great choice for vegetarians and those who may be sensitive to dairy proteins. Even though this study does support gym legend, scientists didn't report any differences in muscle size and strength gains. On the other hand, if you're able to use dairy proteins, whey appears to positively influence hormone levels for heavy-training men.
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