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Vitamin D protects against breast cancer
Researchers in a recent study interviewed 200 women with breast cancer as well as 200 healthy women to measure total vitamin D from diet, supplements and sunlight. Scientists considered differences in age, education, motherhood, hormone replacement therapy, body mass index, daily calories, menopause status, and exposure to sunlight.

Overall, for women of every age and health status, those who got more than 400 IU of vitamin D per day were half as likely to develop breast cancer as women who got less than 80 IU per day. Chances of breast cancer increase with age and weight, and younger women are less likely to develop the disease, yet vitamin D even showed a protective effect in younger, premenopausal women of healthy weight.

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