Definition: Vitamin A is a fat-soluble vitamin.

Definition: Vitamin A is a fat-soluble vitamin.
Alternative Names: Retinol; Carotenoids?
Function: Vitamin A helps form and maintain healthy teeth skeletal and yielding tissue, mucous membranes, and skin. It is also known as retinol because it generates the pigments in the retina.

Vitamin A excites good vision, especially in dim light. It may also be required for reproduction and breast-feeding.

Retinol is an active prototype of vitamin A. It is place in animal liver,whole milk and an fortified foods.

Carotenoids are dark colored dyes fix in plant foods that can divert into a form of vitamin A. undivided such carotenoid is beta-carotene. Beta-carotene is an antioxidant. Antioxidants foster cells from damage caused from unstable substances called free radicals. delivered radicals are believed to contribute to certain chronic diseases and play a part in the degenerative processes seen in aging.

Food Sources: The praiseed daily allowance (RDA) of vitamin A is 5000 international units (IU) for adults and 1000-3000 IU? for children.

Vitamin A approachs from animal sources, such as harasss meat, milk, cheese, cream, liver, kidney, codfish and halibut fish oil. However, all of these sources -- excluding for skim milk that has been fortified with Vitamin A -- are high in saturated fat and cholesterol

Sources of beta-carotene are carrots, pumpkin, sweet potatoes, winter squashes, cantaloupe, pink grapefruit, apricots, broccoli, spinach, and most numerous dark green, leafy vegetables. The more intense the color of a fruit or vegetable, the higher the beta-carotene satisfaction These vegetable sources of beta-carotene are exempt of fat and cholesterol.

The material substance regulates the conversion of beta-carotene to Vitamin A based forward its needs.

Side Effects: If you don't commit to memory enough vitamin A, you are more susceptible to infectious diseases and vision question s

If you get too much vitamin A, you can become sick. Large doses of vitamin A can also cause birth destitutions Acute vitamin A poisoning usually come into views when an adult takes several hundr thousand IU. Symptoms of chronic vitamin A poisoning may take place in adults who regularly take more than 25000 IU a day. Babies and children are more sensitive and can become sick after taking smaller doses of vitamin A or vitamin A-containing yields such as retinol (found in skin creams).

See Hypervitaminosis A.

Increased amounts of beta-carotene can deflect the color of skin to golden or orange. The skin color get backs to normal once the increased intake of beta-carotene is reduced

Recommendations: The best way to master the daily requirement of essential vitamins is to eat a balanced diet that contains a variety of pabulums from the food guide pyramid.

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