Wednesday, April 24th, 2013
Low levels of vitamin D may raise the risk that women will develop uterine fibroids, which are benign tumors that can cause discomfort and bleeding. The New York Times reports on the new study, published in the journal Epidemiology, that makes the connection:
Researchers randomly selected 620 black and 410 white women, ages 35 to 49, and determined their vitamin D levels with blood tests and their health status with questionnaires. Their analysis appears in the May issue of Epidemiology.
About two-thirds of the women had fibroid tumors. In the entire group, only 10 percent of the black women and 50 percent of white women had vitamin D levels above 20 nanograms per milliliter, generally considered an adequate level.
After adjusting for age, physical activity, sun exposure and other variables, they found that having a vitamin D level above 20 decreased the risk for fibroids by 32 percent, and that each increase of 10 nanograms per milliliter in vitamin D was associated with a 20 percent lower risk of having a fibroid tumor.
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