http://www.t-nation.com/findArticle.do?article=302poison2
T-nationin artikkeli soijan vaaroista antaa ymmärtää että muissa proteiineissa ei ole samaa vaaraa. Ongelma on soijan sisältämät aineet:
Soy lowers Testosterone levels! Just about all soy products on the market contain the phytoestrogens (plant estrogens) known as isoflavones. Plant estrogens have lowered Testosterone levels in rats, monkeys, and other animals as well as humans. For grown men, this usually leads to decreased libido and lower sperm count.
että muut ovat turvallisia, soija ei