Educational Information: Diet & Lifestyle

Newer research appears to refute association between high soy intake, breast cancer risk

The Chicago Tribune (9/22, Markowitz) reports, "Soybeans and soy products...contain chemicals called isoflavones," and "institutions like the Pennsylvania State University's College of Agricultural Science and Susan G. Komen for the Cure caution that, because isoflavones are weak estrogens, and because high levels of estrogen have been linked with breast cancer cell growth, adding large amounts of soy and soy products to your diet may increase your risk of developing breast cancer." However, "newer findings suggest high-soy diets can reduce the risk of breast cancer recurrence and death." Specifically, a "2009 study involving 5,042 Chinese female breast-cancer survivors, reported in the Journal of American Medical Association, found that diets with high levels of soy reduced the risk of breast cancer recurrence and death."