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What does vitamin d do?
asked Dec 14, 2010 by triuser (1,768 points)

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Vitamin D is essential for optimum health and growth. Vitamin D is absolutely necessary for the growth and development of bones and teeth, since it is required for the proper absorption and utilization of calcium and phosphorus in the body -- both also essential to the health of the skeleton. Without adequate levels of vitamin D in childhood, bone deformities can develop -- a condition known as rickets. In adults, lack of adequate vitamin D can reduce bone density, leading to osteoporosis and an increased risk of bone fracture.

answered Jan 1, 2011 by trianswer (22,754 points)

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