Prior to the U Conn study, only one previous study compared the effect of soy and whey protein supplementation on the hormones of men doing resistance training.15 That study reported «no significant differences» between the soy and whey groups for total testosterone, free testosterone and sex - hormone - binding globulin (SHBG) after twelve weeks of supplementation. (westonaprice.org)
The whey group, however, lost about 2 pounds of fat and an inch off their waistline. (blog.nkdnutrition.com)
At the end of the study, the researchers found out that all subjects had made strength and size gains during the initial training period, with the whey group experiencing slightly better progress than the maltodextrin group. (fitnessandpower.com)