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Vitamin A is classified as a fat-soluble vitamin. Essential for normal
growth, development, and maintenance of epithelial tissue; essential to the
integrity of night vision; helps provide for normal bone development; influences
normal tooth formation; necessary for wound healing; toxic in large quantities. DRI (RDA or AI for Adults) Males: 900 mcg RAE (2,997 IU). Females: 700 mcg RAE (2,331 IU). Pregnancy: 770 mcg RAE (2,564 IU). Lactation: 1,300 mcg RAE (4,329 IU). RAE = Retinol Activity Equivalents. 1 RAE = 1 mcg retinol. 1 RAE = 3.33 IU. MAJOR SOURCES Animal: beef liver, veal liver, chicken liver, cod liver oil, turkey liver, beef
kidney. Non-animal as beta-carotene: carrot, pumpkin, sweet potato, butternut squash, mango,
spinach, cantaloupe, collard greens, kale, beet greens, Swiss chard. MAINTENANCE/THERAPEUTIC RANGE 5,000 IU to 25,000 IU (upper range for short periods of time). CAUTION: Pregnant women should not exceed 10,000 IU. POSSIBLE THERAPEUTIC APPLICATIONS Acne Cancer (breast, lung) Cataracts Immune function Psoriasis COMMENTS Nutritional supplements usually use vitamin A acetate or palmitate. If
beta-carotene is listed as the source of vitamin A, make sure it is derived from
natural sources. CAUTIONS To avoid potential birth defects, pregnant women should not exceed 10,000 IU
(3,000 mcg RAE) daily total from all sources. Most adults (pregnant women
excluded) can tolerate large doses of retinol for short periods of time.
However, for prolonged intake, it is best to keep vitamin A intake well below
25,000 IU. |
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SupraHealth, Inc.
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