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More prenatal vitamin D may benefit youths' bones

Youths whose mothers took 2,800 units of vitamin D daily during pregnancy had significantly increased bone density at age 6 and a lower rate of bone fractures, compared with those whose mothers took a 400-unit vitamin D supplement during pregnancy, according to a study in JAMA Pediatrics. Researchers also found that elevated prenatal vitamin D exposure was most strongly linked to improved childhood bone density among those whose mothers had vitamin D deficiency and those who were born in the winter, but didn't affect birth weight or height and weight at age 6.  The New York Times (tiered subscription model) (2/25)

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