Consuming a diet high in fiber was linked with a reduced incidence of breast cancer in an analysis of all relevant prospective studies. The findings are published early online in CANCER, a peer-reviewed journal of the American Cancer Society (ACS).
Because studies have generated inconsistent results regarding the potential relationship between fiber intake and breast cancer, Maryam Farvid, PhD, of the Harvard T.H. Chan School of Public Health, and her colleagues searched for all relevant prospective studies published through July 2019.
When the investigators pooled data from the 20 observational studies they identified, individuals with the highest consumption of fiber had an eight percent lower risk of breast cancer. Soluble fiber was associated with lower risks of breast cancer, and higher total fiber intake was associated with a lower risk in both premenopausal and postmenopausal women.
“Our study contributes to the evidence that lifestyle factors, such as modifiable dietary practices, may affect breast cancer risk,” said Dr. Farvid. “Our findings provide research evidence supporting the American Cancer Society dietary guidelines, emphasizing the importance of a diet rich in fiber, including fruits, vegetables, and whole grains.”
Importantly, the findings do not demonstrate that dietary fiber directly reduces breast cancer risk, and a randomized clinical trial is needed to test such cause and effect.
###
Additional Information
NOTE: The information contained in this release is protected by copyright. Please include journal attribution in all coverage. A free abstract of this article will be available via the Cancer News Room upon online publication. For more information or to obtain a PDF of any study, please contact:
Penny Smith +44 (0) 1243 770448 (UK)
newsroom@wiley.com
Follow us on Twitter @WileyNews
Full Citation: “Fiber consumption and breast cancer incidence: a systematic review and meta-analysis of prospective studies.” Maryam S. Farvid, Nicholas D. Spence, Michelle D. Holmes, and Junaidah B. Barnett. CANCER; Published Online: April 6, 2020 (DOI: 10.1002/cncr.32816).
URL Upon Publication: https:/
Author Contact: mfarvid@hsph.harvard.edu
About the Journal
CANCER is a peer-reviewed publication of the American Cancer Society integrating scientific information from worldwide sources for all oncologic specialties. The objective of CANCER is to provide an interdisciplinary forum for the exchange of information among oncologic disciplines concerned with the etiology, course, and treatment of human cancer. CANCER is published on behalf of the American Cancer Society by Wiley and can be accessed online.
Follow us on Twitter @JournalCancer
About Wiley
Wiley drives the world forward with research and education. Through publishing, platforms and services, we help students, researchers, universities, and corporations to achieve their goals in an ever-changing world. For more than 200 years, we have delivered consistent performance to all of our stakeholders. The Company’s website can be accessed at //www.
Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.
