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Soy bad for estrogen receptor positive?

Page last modified on: August 15, 2008
Question from KathyS: Is soy really bad for you if you are estrogen receptor positive?
Answer —Marisa Weiss, M.D., president and founder: The estrogen-like substance in soy protein is much, much weaker than your own body's estrogen. If a weak estrogen sits in the estrogen receptor instead of the stronger estrogen then this is a good thing. Therefore, I think that eating soy foods which are a healthy source of protein--low or no fat, no cholesterol--as a substitute for meat and chicken is probably a healthy choice. I do not feel comfortable with the use of soy supplements--powders or pills--which may give you too high a dose of plant-like estrogens. Fortunately, or unfortunately, soy foods don't taste good enough to eat too much of them.

On Wednesday, June 14, 2000, our Ask-the-Expert Online Conference was called Easing Breast Cancer Fears. Marisa Weiss, M.D. answered your questions about managing emotional effects of breast cancer diagnosis and treatment.

The materials presented in these conferences do not necessarily reflect the views of breastcancer.org. A qualified healthcare professional should be consulted before using any therapeutic product or regimen discussed. All readers should verify all information and data before employing any therapies described here.

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Marisa Weiss, M.D. is a radiation oncologist specializing in breast cancer and the founder, president, and guiding force behind Breastcancer.org.

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