As has been suspected by many in the natural health community for a while, research from the University of Illinois has confirmed that the concentration of soy isoflavone in supplements may help drive tumor growth in women with estrogen - receptor positive breast cancer. (naturalhealth365.com)
There are a variety of isoflavones in soy, but several of the main ones are biologically inactive until they hit your intestinal tract (specifically, these compounds are activated by your intestinal bacteria). (tctmed.com)
This amount is equivalent to the amount of soy isoflavones in 500 milliliters of soy milk. (sciencedaily.com)