At least one in five U.S. children aged 1 to 11 don't get enough vitamin D and could be at risk for a variety of health problems including weak bones, the most recent national analysis suggests.
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Mon, 10/26/2009 - 7:45am
At least one in five U.S. children aged 1 to 11 don't get enough vitamin D and could be at risk for a variety of health problems including weak bones, the most recent national analysis suggests.