Soy and Breast Cancer Confusion
Past studies have raised questions about isoflavones—the antioxidants found in soy foods—working as a stimulant in the regrowth of cancer cells in breast cancer survivors. However, a study of breast cancer survivors in Shanghai suggests that those who ate the most soy had a decreased risk of breast cancer returning.

An editorial that accompanied the study, published in the Journal of the American Medical Association, cautioned that the findings relate only to women who ate soy foods—and should not be extrapolated to promote soy supplements.

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