Vitamin D

What are 2 forms of Vitamin D?
- 1. ergocalciferol
- 2. cholecalciferol --exposure to sun
What is Vitamin D precursor?

Precursor is the body's own cholesterol.
Where is vitamin D synthesized in the body?

Liver------hydroxycholecalciferol

Kidney---dihydroxycholecalciferol (2 kidneys)
What are functions of Vitamin D?
- strong bones & teeth
- makes calcium and phosphorus available in the blood
- acts like a hormone
What happens when Vitamin D deficiency?

weak bones & teeth
Disease of Vitamin D?
- effects skeletal system
- rickets in children
- osteomalacia (os-tee-o-mal-AY-shuh)
Toxicity of Vitamin D?
- elevated blood calcium levels
- kidney stones
Sources of Vitamin D?
- animal sources: fish liver oil, fortified milk, eggs, liver
- exposure to sun
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

Author

muzacgrl

108896

Card Set

Vitamin D

Description

Vitamin D

Updated

2011-10-20T22:50:43Z