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Vitamin A Part 2Vitamin A may also be added to the diet by taking a dietary supplement; however, those taking vitamin A supplements should proceed with caution.
Side effects of too much vitamin A in the diet include hair loss, enlarged liver and spleen, anemia, and joint pain. Thus, it is thought safer for individuals to get the vitamin A they need from a well-balanced diet that includes foods rich in beta-carotenes.
Beta-carotenes are converted to vitamin A by the body as needed, and the only toxic side effect of consuming massive amounts of this substance is a yellowing of the skin, which subsides immediately upon reducing the dosage.
Vitamin A is a proven success in the fight against wrinkles and acne. Vitamin A derivatives such as Retin-A (applied topically) and Accutane (taken orally) are often effective treatments for acne, psoriasis, and other skin disorders.
The Recommended Dietary Allowance (RDA) of vitamin A is 5,000 International Units (IU) for adult men, and 4,000 IU for adult women (6,500 IU if nursing), though dietary supplements can contain up to 10,000 IU of vitamin A.
Return to Vitamin A, part 1
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