High Fiber Diet may Prevent Cancer

Rebecca Fehrenbach


High-Fiber Diet May Help Lower Breast Cancer Risk

Author: Agata Blaszczak-Boxe

Source: livescience.com

Publication date: February 01, 2016

Teenage girls and young women who consume high quantities of fiber are shown to have a decreased risk of breast cancer later in life according to a study conducted. Researcher's conducting the studying observed 90,500 women with ages varying from 27-44 years old, in which the women were asked their normal diets and were followed for 20 years. The study showed women who ate high amounts of fiber in early adulthood had a 12-19 percent lower risk of developing breast cancer, and women that had a high intake of fiber in their diets during there teenage years had a 24 percent lower risk of developing breast cancer, as compared to women who did not consume much fiber in there diet in early adulthood and teenage years. The recommended dietary intake of fiber is 25-35 grams per day, the study found that each additional 10 grams of fiber intake per day during adolescence reduces the risk of breast cancer by 14 percent. They compared 10 grams of fiber to one apple and two slices of whole wheat bread. Researchers are unable to pinpoint the exact reason for this finding but they believe fiber helps with reducing the levels of estrogen in the blood which has been associated with the development of breast cancer.

Article Critque

After reading the article published on live science.com, I did notice a few areas of concern. Although the authors credentials were identified, Agata Blaszczak-Boxe has a Master of Arts degree from the City University of New York Graduate School of Journalism, this shows that the author is not a scientist and therefore was not the actual one to conduct the study. Her degree is not related to nutritional health which discredits her ability to interpret the findings of the study. The website where the article can be found is livescience.com. When conducting a study scientist display their work in respected scientific journals where their peers can evaluate the reliability of the article and work that was conducted. This website is not a professional journal and cannot be evaluated by other scientists. The website contained many adds, which typically means that the source can influence the information that is written in the article. This could cause a bias in the information presented. When examining the information in the article the study that was conducted did not clarify who actually who conducted it and where it took place. The results were only based on the study the article had no other scientific evidence to support the findings. The study did not incorporate other lifestyle factors that can contribute to breast cancer such as genetics and environmental influences. It was also not a properly designed scientific experiment that could be replicated. For instance the population they used had a total of 90,500 women which is entirely to many people to observe. It was also tested over a 20 year period where multiple factors could have effected the results. The results that were found were only an association, not a direct correlation, which means that a high-fiber diet may not be the exact reason for the women observed to have a lower risk for breast cancer. There could have been other factors that contributed to the decreased risk for breast cancer.


Blaszczak, B. A. (2016, February 01). High-Fiber Diet May Help Lower Breast Cancer Risk. Retrieved April 9, 2016, from http://www.livescience.com/53549-high-fiber-diet-lower-breast-cancer-risk.html

DeBruyne, L. K., & Pinna, K. C. (2014). Nutrition for health and health care (5th ed.). Belmont, CA: Yolanda Cossio.

pg. 33-36.