Eating Soy protein causes lowered Testosterone levels. This is especially troubling to men and bodybuilders. To a bodybuilder, soy protein is like Kryptonite! The plant estrogens will rob you of your manhood, shrink your muscles and lower your sex drive.
http://prejezdy.info/node/19962
http://www.climatesense.org/ClimateSense/?q=node/9271
http://piochacz.pl/ptak/node/64978