Information About Vitamin A

By Author: minnieyeik
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The vitamin A belongs to the family of alike appearing molecules such as retinoids for the completing the remainders of vitamin sequence. The important part of vitamin a is retinyl group which is now available in varied forms. In the animal food the main content is vitamin A which is an ester, basically retinyl palmitate converting into alcohol in the small intestine. In certain products vitamin A is also found as aldehyde. Acid basically retinoic acid contain vitamin A in lesser amount but not shows any function in retina which is the eye part of human body.

One will find that all types of vitamin A is containing beta-ionone ring which is attached by iso pronoid chain. This structure of vitamin A is required for vitamin activity. The users of vitamin A can see that the orange pigment found in the carrots-beta -carotene produces two joined retinyl group for increasing the level of vitamin A in the body. At present no other carotenes is carrying the vitamin activity ability among them.
One can find vitamin A in various forms such as retinol which is a form of it is found while the consumption of animal food ...
... sources like yellow, fat-soluble; vitamin plays important role in vision and bone growth. Another form is retinoids which is a chemical compound representing vitamin A. The vitamin A was found in the year 1906 showing that along with carbohydrates, proteins, and fats it is impotant for both human and animals.

Now users of vitamin A will also like to know in which food it is mainly found. One will get vitamin A in liver of beef, chicken, turkey,fish, pork; sweet potato, carrot, broccoli leaf, kale, butter , spinach, leafy vegetables, pumpkin etc. The role of intake of vitamin A is immense such as it plays an important role in vision,gene transcription, immune function, embryonic development and reproduction, bone metabolism, haematopoiesis, skin health, and antioxidant Activity etc.

If you want knowledge on vitamins and other factoid, visit the vitamin d site.