Obesity and vitamin D deficiency may indicate greater risk for breast cancer
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CLEVELAND, Ohio (September 19, 2018)–Vitamin D is already well known for its benefits in building healthy bones. A new study supports the idea that it also may reduce cancer risk as well as breast cancer mortality, especially in women with a lower body mass index. Study results are published online today in Menopause, the journal of The North American Menopause Society (NAMS).

Breast cancer remains the most common cancer in women worldwide and is the leading cause of death from cancer in women. Reproductive risk factors such as early onset of puberty, late menopause, later age at first pregnancy, never having been pregnant, obesity, and a family history have all been shown to be associated with breast cancer development. The role of vitamin D concentration in the development of breast cancer, however, continues to be debated.

This study involving more than 600 Brazilian women suggests that vitamin D may reduce cancer risk by inhibiting cell proliferation. Study results appear in the article “Low pretreatment serum concentration of vitamin D at breast cancer diagnosis in postmenopausal women.”

Researchers involved in the study concluded that postmenopausal women had an increased risk of vitamin D deficiency at the time of their breast

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