Vitamin D3 is known as the sunshine vitamin, because our bodies generate D3 when we are exposed to the ultraviolet light from the sun. This is why, in the fall and winter, especially in regions of the world further from the equator, our vitamin D levels tend to drop below recommended ranges. Researches from the University of Georgia have even associated low vitamin D levels with greater risk of SAD. A fat soluble vitamin essential for promoting calcium absorption, without sufficient calcium and vitamin D, bones can become thin and brittle. The FDA's established Reference Daily Intake for Vitamin D is 400 IU. NutraBlast Vitamin's Vitamin D is designed to help replace what your body is losing during those cold autumn and winter months, and boost vitamin D levels for those who are deficient.
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