Fat-soluble vitamins are vitamins A, D, E and K. To some extent, this vitamin is different from the water-soluble vitamins. This vitamin is contained in fat and oily part of food. These vitamins are digested by the bile only because it is not soluble in water. The following section provides a detailed description of each vitamin type.
It is difficult to determine the number requirement of vitamin A. This vitamin is produced from two different compounds that are converted in the body into vitamin A. In animal food sources, available in the form of retinol; in vegetable food sources are in the form of beta-carotene, which is less efficient than retinol for production of vitamin A. make This is the recommended amount of vitamin A given in the form of retinol equivalent, RE. The recommended amount of vitamin A is 1000 micro-grams per day for males and RE 800 micro-grams for women. Continue reading