And although animal products would appear to be «soy free,» most commercial and health - food store eggs, milk, and
flesh foods contain residual isoflavones from soy - based feeds.4
A 2005 report in the journal
Food and Chemical Toxicology found that the treated wood used in the troughs that feed beef cattle in factory farms
contained a poisonous residue that ended up in the
flesh of the cattle themselves.