среда, 14 октября 2009 г.

What is Vitamin A

Vitamin A (Retinol) - a fat-soluble vitamin. It exists in several forms: retinol, retinal and retinic acid.
Provitamins (prescures) of Vitamin A are carotenoids - animal form of Vitamin A. Carotenoids can be found in foods of plant.

Vitamin A is necessary for vision, growth, development, healthy skin, hair, immunity, reproduction and more.

Was discovered by Lafayette Mende, Thomas Osborne and Elmer McCollum in 1917.

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