BIOLOGY 105 Lecture Notes - Lecture 11: Vitamin D Deficiency, Vitamin K Deficiency, Vitamin A Deficiency

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20 Dec 2019
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Rickets condition associated with bone malformations in children from d deficiency. Sunshine vitamin produced in the skin from cholesterol with exposure to uv light. Most of us meet the needs this way. Limited sun exposure or impaired synthesis important to consume sufficient vitamin d through our diet. Through synthesis in the skin or through foods vitamin d must be activated in the kidneys and liver to fulfill its biological functions in the body. Sunlight makes vitamin d when skin is exposed to sun"s uv energy. Even though sunlight is a significant source of vitamin d. Rdas are established to maintain bone health and normal calcium metabolism in healthy people are set on the basis of minimal sun exposure. In 2010, the institute of medicine increased the rda for vitamin d for all age groups. Increased threefold to 600 iu (15mcg) for adults 19-50.

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