INFORMATION:
Vitamin A is important for maintaining good vision. A sign of a vitamin A deficiency is often night blindness. It's also used to maintaining healthy skin and mucous membranes that line the nose, sinuses and mouth. Research has shown that it's necessary for maintaining the immune system, growth, reproduction, and wound healing. Some studies suggest that it provides some protection against toxics like dioxin. Parts of the body can store a year's supply of this vitamin. Vitamin A is a fat-soluble vitamin found in animal based food. However, the body can make it's own vitamin A from betacarotene, a nutrient found in dark green leafy vegetables and brightly colored fruits and vegetables such as cantaloupe, carrots and sweet potatoes. vitamin A is used in the treatment of Psoriasis Acne, and other Skin disorders Topical and oral preparations containing retinoids (a man made form of vitamin A) are useful in clearing up acne and psoriasis and have shown promise for treating other skin disorders such as 'rosacea' premature aging from the sun, and warts. These are given by prescription. A number of vision disorders involving the retina and cornea are associated with vitamin A deficiencies. Night blindness, for example, and xerophthalmia (characterized by dry eyes) improve with vitamin A supplementation. A large, population-based study conducted in Australia showed that vitamin A had a protective effect against cataracts. The body needs vitamin A, along with several other nutrients, in order to form new tissue and skin. The body's level of vitamin A is low immediately following. betacarotene suppliments help the body replenish vitamin A storage, strengthen the immune system, relieve stress caused by injury, and aid the body in the forming of new tissue. Research has shown that vitamin A boosts the immune system by stimulating white blood cells and increasing the activity of antibodies. Vitamin A deficiency may be associated with increased risk of infection and infections tend to deplete the body's storage of the vitamin. Vitamin A deficiency is common among children in many developing countries who are ceceptable to infections, which often results in threatening diarrhea. Low amounts of vitamin A are also particularly problematic among children infected with 'HIV'. Some research suggest that vitamin A supplements may reduce the risk of death in children infected with HIV. Your doctor will determine whether vitamin A is necessary and appropriate. usually children, who are deprived of vitamin A are more likely to develop infections, like measles. deficiencies in this vitamin can cause such infections to be more severe, even fatal. Vitamin A supplements reduce the severity and complications of measles in children. Vitamin A also reduces the risk of death in infants with this disease. In areas of the world where vitamin A deficiency is widespread or where at least 1% of those with measles have died, the World Health Organization recommends giving high doses of vitamin A supplements to children with the infection. An appropriate balance of vitamin A is necessary for bone development. Low levels of vitamin A may contribute to the development of bone loss or osteoporosis. On the other hand moderately high doses of vitamin A (exceeding 1,500 mcg or 5,000 IU per day) may lead to bone loss. Therefore, for prevention or treatment of osteoporosis, it is best to obtain vitamin A from food sources and follow the recommended dietary allowance 'RDA'. Results from a 7yr clinical study suggest that a modest dose of vitamin A together with chemotherapy may help improve survival time in patients with certain bone marrow disorders such as chronic myelogenous leukemia 'CML'. Research suggests that retinoids such as vitamin A have antitumor effects against juvenile CML (which accounts for 3% to 5% of cases of leukemia in children), as well as certain cancer cells grown in a laboratory.
Vitamin A, beta-carotene, and other carotenoids from foods may be associated with decreased risk of certain cancers, breast cancer. colon cancer, cervical cancer and esophageal cancer. However, there is no proof that these supplements can help prevent or treat cancer in people. In fact, some evidence suggests that beta-carotene and, possibly, vitamin A may put people at increased risk of lung cancer, particularly smokers.

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