Vitamin D, cholecalciferol, ergocalciferol
vitamin D (cholecalciferol) is stable to heat, light and storage
vitamin D2 (ergocalciferol) is obtained from plants
vitamin D3 is cholecalciferol derived from animal products
1,25 DHCC is the most active form
Vitamin D is synthesized in the skin with ultraviolet light.
Vitamin D increases the absorption of calcium, increases the resorption of calcium into bone, and increases serum calcium levels.
adults - 200 iu, children - 400 iu
labs - 10-80 ng/ml cholecalciferol, 21-45 pg/ml 1,25 DHCC
cod liver oil, mushrooms
decreased 25 HCC
increased alk phos suggests bone loss
decreased serum phosphorous
headache, weakness, N/V, constipation, polyuria, polydipsia, diarrhea
calcification of soft tissue - kidneys, lungs, tympanic membrane
prednisone - decreases vitamin D
dilantin - interferes with vitamins D and K
olestra - inhibits the absorption of fat soluble vitamins
in children, malformation of bones
stunted growth, Òknock kneesÓ
estlessness, poor sleep
in adults, skeletal demineralization
burning mouth and throat, nervousness, diarrhea, insomnia
l osteoporosis, rickets, fractures
psoriasis - 1,25 DHCC has been found to be very helpful
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Nutritional Genetics is a fantastic resource.