4000 IU Vitamin D Daily Cuts Preterm Birth Risk in Half

A new study by researchers from Medical University of South Carolina has found that women taking 4000 IU of vitamin D daily during pregnancy cut their chances of a preterm birth in half compared to women taking only 200-400 IU.  The women taking 4000 IU of vitamin D also has a reduced risk of infections.  There were no adverse effects found for this level of supplementation.  

If you think you live in a sunny environment and don't need vitamin D, consider this:

"All the women taking part in the study were living in Charleston — in sunny South Carolina. Overall, 85 per cent were either insufficient, or "frankly deficient" in vitamin D when the study began."

This adds to the list of studies indicating that the vast majority of urbanites are deficient even if they live in sunny places.