Calcium and Breast Cancer

Calcium, multivitamins may be linked to reduced breast cancer risk.
Bloomberg News (4/19, Gibson) reports that "calcium doesn't just build strong bones, it may fight cancer too," according to a study presented at the meeting of the American Association for Cancer Research. Investigators found "that women who took calcium had a 40 percent lower risk of getting breast cancer, while those getting multivitamins showed a 30 percent reduction in risk." These "data contradict results of a December 2008 trial that showed no reduction in cancer risk from vitamin supplements."
HealthDay (4/18, Gardner) pointed out that "the authors of the study...did not separate out which specific vitamins might be beneficial, but suggested that the interactions of different vitamins together might account for the beneficial effect."