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Calcium and Vitamin D may lower the risk of breast cancer in premenopausal women

May 29, 2007

Researchers from Brigham and Women’s Hospital and Harvard Medical School crunched data on dietary and lifestyle habits of 10,578 premenopausal and 20,909 postmenopausal women who were followed for up to 10-years. In premenopausal women, higher intake of Calcium was associated with a 39% drop in the risk of breast cancer vs. lowest intake, and the highest intake of Vitamin D was associated with a 35% drop in risk vs. lowest intake. The intake could be dietary or from supplements; both were protective and were also protective against more aggressive breast cancer. The study is published in the May 28th, 2007 issue of the journal Archives of Internal Medicine