How much vitamin D do I need?

Vitamin D -- the so-called sunshine vitamin -- is the wonder nutrient of the moment. While the vitamin is best known for helping build strong bones and absorb calcium, a vitamin D deficiency can raise the risk of everything from immune disorders to colds and flu, according to recent research.

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<p><a href="http://www.physorg.com/news157295715.html">How much vitamin D do I need?</a></p> <p> Vitamin D -- the so-called sunshine vitamin -- is the wonder nutrient of the moment. While the vitamin is best known for helping build strong bones and absorb calcium, a vitamin D deficiency can raise the risk of everything from immune disorders to colds and flu, according to recent research.</p>