Dietary Fiber Intake and Risk of Postmenopausal Breast Cancer Defined by Estrogen and Progesterone Receptor Status--A Prospective Cohort Study Among Swedish Women

Avid consumption of high-fiber foods, such as fruits and whole grains, may slash the risk of breast cancer in postmenopausal women.

This study attempted to answer the question: does high fiber diet reduce the risk of breast cancer? More than 51,000 postmenopausal women from Sweden enrolled in this study and provided information related to their diet and health. 

Researchers discovered that participants who consumed high amounts of fiber from food sources, such as fruits and cereals, had lesser risk of breast cancer than their counterparts who refrained from eating these plant foods. "Our results suggest that dietary fiber intake from fruit and cereal may play a role in reducing breast cancer risk," the authors concluded.