Vitamins and Calcium Supplements Center

Vitamins are organic substances that are essential for the proper growth and functioning of the body. Calcium is a mineral essential for healthy bones and is also important for muscle contraction, heart action, and normal blood clotting. Read more: Vitamins and Calcium Supplements Article

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Vitamin D Deficiency: How Much Vitamin D Is Enough? See Slideshow

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Medically Reviewed by a Doctor on 5/20/2015

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