Breast cancer is the most common cancer in women. Its mortality rates have been greatly reduced by advances in diagnostic measures, surgery, and chemotherapy. But diet can play a role in preventing breast cancer altogether.
Higher estrogen levels in the blood are a risk factor promoting the development of breast cancer. Women eating a high fiber diet tend to have lower blood estrogen levels, and therefore have a lower risk.
An article published in the American Journal of Clinical Nutrition recently reviewed the available data on diet and breast cancer. A total of 16,848 cases of breast cancer occurred among the 712,195 participants in the 10 prospective studies on dietary fiber intake and beast cancer.