Does Soy Prevent Breast Cancer?
The incidence of breast cancer in Japanese women living in Japan is significantly lower than that of American women. When Japanese women move to the United States and adopt the typical American diet, their risk of breast cancer eventually matches that of American women. Japanese women consume soy foods on a daily basis, and although there are many differences in the diets and lifestyles of Japanese versus American women, researchers have identified soy foods as one possible contributing factor to the lower breast cancer rate.