Can Vitamin D Levels affect the Risk of Premenopausal Breast Cancer?

logo1267406_mdA new study published online in advance of the print edition of Cancer Causes and Control concluded that low serum vitamin D levels in the months preceding a diagnosis may predict a high risk of premenopausal breast cancer.

From a prospective study of the blood levels of 1,200 healthy women researchers found that women whose serum vitamin D level was low during the three month period before diagnosis had approximately three times the risk of breast cancer as women in the group of  the highest level of vitamin D.

The study utilized 9 million blood serum samples frozen by the Department of Defense Serum Repository for routine disease surveillance. Samples from 1,200 pre-diagnosed women were thawed and analyzed by the researchers. These samples included 600 women who later developed breast cancer and 600 women who remained healthy.The researcher said “Based upon these data, further investigation of the role of vitamin D in reducing incidence of premenopausal breast cancer , particularly during the late stage of its development, is warranted. “

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