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# Vitamin D reduces risk of breast cancer
- URL: https://www.foodconsumer.org/vitamin_d_reduces_risk_of_breast_cancer_0829110739/
- Published: 2011-08-30T08:38:00.000Z
- Updated: 2026-09-22T15:51:30.000Z
- Description: A review of 11 case-control studies in Anticancer Research found women in the highest quartile of serum vitamin D were 39 percent less likely to be diagnosed with breast cancer than those in the lowest, and women at 47 ng/ml of 25-hydroxyvitamin D were 50 percent less likely.
- Author: Food Consumer
- Tags: Vitamins, Nutrition, Breast Cancer, Vitamin D, #vivvo-import

By david Liu, Ph.D.

A review of 11 case-control studies suggests maintaining high serum levels of vitamin D may help reduce the risk of breast cancer significantly.

It is well known that one in eight women in the United States are expected to develop breast cancer, which kills about 50,000 people in the country each year, according to the U.S. National Cancer Institute.

The review released in the Sept 2011 issue of Anticancer Research found those whose vitamin D was in the highest quartile were 39 percent less likely to be diagnosed with breast cancer, compared to those whose vitamin D was in the lowest quartile.

The study led by Vitamin D expert Cedric F. Garland of University of California San Diego and colleagues also found women who had 47 ng/ml of vitamin D in the form of 25-hydroxyvitamin D \[25(OH)D\] were 50 percent less likely to have breast cancer.

Early studies have suggested that high levels of serum vitamin D may reduce breast cancer risk by up to 70 percent.

Vitamin D is not just for bone health. This vitamin has been associated with many diseases including cancer, heart disease, and diabetes, according to Dr. John Cannell, director of Vitamin D Council.

The Institute of Health recommends now that an adult need to have intake of 600 IU of vitamin per day. But vitamin D experts including Dr. John Cannell believe that at least 4000 to 5000 IU should be used to have a preventive effort against diseases.

There are many other things food consumers may do to reduce the risk including eating a healthy diet and following a healthy lifestyle. For instance, a plant-based diet may also help prevent breast cancer.