Possible Link Between Vitamin D Deficiency and Breast Cancer

German researchers compared the vitamin D levels and mammographic findings of 1,103 women and found that women with malignant results were more likely to have deficient vitamin D levels than those with negative results. Though more research is necessary, this finding suggests vitamin D deficiency may play a role in the development of some types of breast cancer.
Obstetrics and Gynecology, May 2016