A 41-year-old member asked:
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can soy milk cause cancer and breasts in men?

1 doctor answer
Dr. Chad Levitt
21 years experience Radiation Oncology
Not likely: Soy has phytoestrogens that can b converted to estrogen. Too muh estrogen in a male can cause breast tenderness and growth. Unlikely to cause cancer. Still, in order to get enough soy in your diet to cause such symptomatic changes you would have to drink solely soy milk in large amounts. Women who want to get estrogen replacement by taking soy must add powder form concentrate to get enough.
Answered on Apr 1, 2013

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