Vitamin D Tied to Breast Cancer

Dr. Katie O'Brien and colleagues with the National Institute of Environmental Health Sciences measured vitamin D levels in blood samples from 290 Black/African American women and 125 non-Black Hispanic/Latina women who developed breast cancer, and 1,084 Black/African American women and 461 Hispanic/Latina women who did not develop breast cancer.

Over an average follow-up of 9.2 years, women with circulating Vitamin D levels above the cut point for deficiency (20.0 ng/mL) had a 21% lower breast cancer rate than women with concentrations below this cut point.

However, questions remain about what levels of vitamin D are most beneficial?

Source : Vitamin D concentrations and breast cancer incidence among Black/African American and non- Black Hispanic/Latina women