Along with their many nutrients, soy foods contain proteins and isoflavones, compounds that have estrogen-like properties. High levels of estrogen can fuel some breast cancers, and these compounds are well studied for their link to cancer risk and survivorship.
A new study now adds to this research, suggesting that consuming soy and other foods containing isoflavones after diagnosis may help some breast cancer survivors live longer. The link with more soy foods and lower mortality was found among women diagnosed with tumors that do not have receptors for estrogen.
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