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vitamin A

vision: maintenance of cornea, epithelial cells, mucous membranes, skin; bone and tooth growth; reproduction; immunity

vitamin D

mineralization of bones(raises blood calcium and phosphorus by increasing absorption from digestive tract, whitdrawing calcium from bones, stimulating retention by kidnesy

Vitamin E


Vitamin K

synthesis of blood-clotting proteins and bone proteins

A deficiency

infectious diseases, night blindness, blindness, keratinization

d deficiency

rickets, osteomalacia

E deficiency

erythrocyte, hemolysis, nerve damage

K deficiency


A toxicity

reduced bone mineral density, liver abnormalities, birth defects

D tox

calcium imbalance

E tox

hemorragic effects

k tox

none known

sources of a

retinol: milk, milk products Beta-carotene: dark green leafy and deep yellow/orange vegetables

sources of D

synthesized in body with the help of sunshine; fortified milk

sources of E

vegetable oils

sources of K

synthesized in the body by GI bacteria; green leafy vegetables

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