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Low Vitamin D in Early Pregnancy Tied to Lower Birth Weight, University of Pittsburgh Study  
1/7/2013 7:18:49 AM

Vitamin D deficiency early in pregnancy may increase the risk of having a baby with a lower birth weight, according to a new study. Researchers looked at vitamin D levels in blood samples collected from more than 2,000 U.S. women who gave birth to full-term babies. Although the original collection was done between 1959 and 1965, the blood samples were well preserved.
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