Vitamin D

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Author:
muzacgrl
ID:
108896
Filename:
Vitamin D
Updated:
2011-10-20 18:50:43
Tags:
VitaminD
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Description:
Vitamin D
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  1. What are 2 forms of Vitamin D?
    • 1. ergocalciferol
    • 2. cholecalciferol --exposure to sun
  2. What is Vitamin D precursor?
    Precursor is the body's own cholesterol.
  3. Where is vitamin D synthesized in the body?
    Liver------hydroxycholecalciferol

    Kidney---dihydroxycholecalciferol (2 kidneys)
  4. What are functions of Vitamin D?
    • strong bones & teeth
    • makes calcium and phosphorus available in the blood
    • acts like a hormone
  5. What happens when Vitamin D deficiency?
    weak bones & teeth
  6. Disease of Vitamin D?
    • effects skeletal system
    • rickets in children
    • osteomalacia (os-tee-o-mal-AY-shuh)
  7. Toxicity of Vitamin D?
    • elevated blood calcium levels
    • kidney stones
  8. Sources of Vitamin D?
    • animal sources: fish liver oil, fortified milk, eggs, liver
    • exposure to sun
  9. Characteristics of Vitamin D?
    • fat soluble
    • acts like hormone
    • most toxic of all known vitamins
    • RDA for children up to 23 yrs of age
    • kidney stones
    • Calcium absorption

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