A recent scientific review suggested a link between consuming a fiber-rich diet and a lower risk of breast cancer, adding to the accumulating evidence that supports benefits of adding vegetables, fruits, and whole grains to our diet.
The results emanated from a systemic review and meta-analysis conducted by Dr. Maryam Farvid and to identify the connection between the intake of total and type of fiber and breast cancer incidence. The researchers searched the data from MEDLINE and Excerpta Medica dataBASE (EMBASE) databases through July 2019 for prospective studies that suggested a link between fiber-rich diet and incidence of breast cancer.
Overall 20 observational studies were identified, which suggested an 8% lower risk of breast cancer with high fiber consumption. Also, a consistent relationship was found between soluble and insoluble fiber and a lower risk of breast cancer among pre and post-menopausal women.
The researchers stated that lifestyle factors, such as dietary practices contribute to the risk of breast cancer. The study result also provides evidence supporting the American Cancer Society dietary guidelines, which focus on the importance of intake of dietary foods, such as fruits, vegetables, and whole grains.
Although the study concluded that the consumption of high total fiber was associated with reduced risk of breast cancer, the mechanism responsible for this risk reduction is unclear. Therefore, further clinical trials are required to determine the exact cause and effect.
Meanwhile, we can take preventive measures against breast cancer by adopting a healthy lifestyle, including a healthy balanced diet consisting of loads of fruits, vegetables, and whole grains.
Source: Farvid MS, Spence ND, Holmes MD, Barnett JB. Fiber consumption and breast cancer incidence: A systematic review and meta-analysis of prospective studies. Cancer. 2020 Jul 1;126(13):3061-3075.