Vitamin D is the vitamin that the skin produces when it is exposed to ultraviolet rays from the sun. Vitamin D actually functions as a steroid hormone that can influence gene expression in human cells. I have written quite a few posts about Vitamin D before, here I will go in to more detail on Vitamin D Deficiency Symptoms.
If you would like more info on Vitamin D, check out some of my other posts on the subject:
Vitamin D function and health benefits
Causes of Low Vitamin D levels
Signs and symptoms of low Vitamin D
Thursday, June 16, 2011
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