Vitamin A belongs to the family of same molecules such as retinoids for the completing the remainders of vitamin sequence in the body. The important part of vitamin a is retinyl group which is present in various forms in the stores. In the animal foods the main content is vitamin A like an ester, basically retinyl palmitate converting into alcohol in the small intestine. In certain products vitamin A is also available as aldehyde. Acid basically retinoic acid contains vitamin A in less amount, not showing any function in retina of the eye part of human body.

Consumer will see that all types of vitamin A contains beta-ionone ring attached by iso pronoid chain in the human system. Consumers should know that such structure of vitamin A is required for vitamin activities in the body. consumers of vitamin A will find that the orange pigment present in the carrots-beta -carotene produces two types of retinyl group for increasing the level of vitamin A in the body. Consumers can find vitamin A in various forms such as retinol which is found while consuming animal food sources like yellow, fat-soluble. Also vitamin A plays an important role in vision and bone growth of the body.

Consumers should keep information that from which sources they can avail more vitamin A for their body. Consumers will find vitamin A in the liver of beef, chicken, turkey,fish, pork, sweet potato, carrot, broccoli leaf, kale, butter , spinach, leafy vegetables, pumpkin and other things. Consumers 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 Activities .