OK to eat soy foods, or best to avoid them?


Question from Linda: Just got here. Have you discussed soy yet? Is it OK to eat soy foods, or best to avoid them?
Answers - Larissa Korde Some studies have looked at how soy affects the risk of breast cancer. And those studies tend to suggest that a diet high in soy is protective against developing breast cancer. The concern in cancer survivors is that soy has some estrogenic properties, so to women with hormone-receptor-positive cancers there's some concern that soy could actually contribute to recurrence. So, I usually tell my patients that they don't need to avoid soy completely after a diagnosis of breast cancer, but I would not recommend megadoses of soy or specific supplements that include soy.
Diana Dyer, M.S., R.D. I would add that, at this point, soy foods in moderate amounts, of intake which would be typical of an Asian intake of 1 to 3 servings a day of soy foods such as tofu or tempeh are considered part of a healthy diet and even acknowledged by the American Cancer Society as being safe for breast cancer survivors.
Larissa Korde I absolutely agree with that.

On Tuesday, October 13, 2009, our Ask-the-Expert Online Conference was called Nutrition Through the Holidays. Diana Dyer, M.S., R.D. and Larissa Korde, M.D., M.P.H. answered your questions about what and how much to eat when holiday treats abound.

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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