Many people supplement vitamin D for health reasons, as it aids in calcium absorption and bone strengthening and helps the body ward off disease. Although supplementation helps maintain appropriate vitamin D levels, vitamin D toxicity can adversely affect some if too much of the essential nutrient is taken in. Other ways of obtaining vitamin D for health include daily sunshine and eating foods naturally high in this nutrient.

Maintenance of blood calcium levels within a narrow range is vital for normal functioning of the nervous system, as well as for bone growth, and maintenance of bone density. Vitamin D is essential for the efficient utilization of calcium by the body.




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