If you love reading about the history of D&D, you won’t want to miss out on this. D&D: Origins is a four-book set that ...
Vitamin D is synthesized when cholesterol in the skin is exposed to UVB sun radiation. It functions more as a hormone than a vitamin. Vitamin D plays a crucial role in regulating gene expression, ...
NBC’s Dr. Natalie Azar and TODAY nutrition and health expert Joy Bauer break down the basics of vitamin D, including why it's important, how much you should get per day, natural sources, the health ...
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