وصفة سهلة

Vitamin A

A, Vitamin, Diet and Health

A, Vitamin is absolutely essential for the proper growth of children, Vitamin A or retinol is also needed by children and adults for proper vision it can prevent or sometimes cure night blindness and for healthy skin and mocus membranes lining the body's inner cavity . In addition , Vitamin A helps the body fight infection and,

A, Vitamin, Diet and Health

according to Harvard University's recent Nurses' Health Study, may reduce the risk of breast cancer . Its precursor in many plants, BETA-CAROTENE, may also reduce the risk of some cancers.

The latest good news , according to Johns Hopkins School of Medicine study conducted in Africa , is that
Vitamin A and beta-carotene and possibly other carotenod vitamin A precursors may reduce the transmission of AIDS from mother to infant, Formerly measured in international units IU , which some vitamin bottle labels still list , vitamin A is now measured in retinol equivalents RE .
The latest recommended Dietary Allowence RDA lists RE only , so that's what we us .
To convert IU to RE; 1RE= 3.3 IU if food source an animal Retinol, 10 IU if food source is a plant beta-carotene.
Deficiency Symptoms : Lowered resistance to infecton; rough, dry and pimply skin; digestive problems; kidney stones; night blindness and eye disease, including xerophthalma, Whch can cause permanent blindness. Results of the ongoing Nurses' Health Study an eight -year program involving 89,000 woman nurses suggest that those who didn't get enough beta-carotene and retinol had about 25 percent more breast cancers than those whose diets met the RDAs.
Good sources: Liver, eggs, margrines and whole milk and low-fat milks fortified with vitamin A.

In addition, beta-carotene, which the body converts to vitamin A, can be fount in pumpkins, winter squash, carrots, sweet red pepper, apricots, mangoes, papayas, and other bright yellow /orange/red fruits and vegetables, also in such dark leafy greens as chard, spinach, mustard, turnip and beer tops.
Precautions: Vitamin A is fat soluble, meaning that it can be stored in the body and that it's possible to OD on high -dosage supplements .The worst-case scenario ;blurred vision, increased skull pressure, hair loss

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