I will like to thank my teacher for giving me this project to research, because it has taught me alot about the various vitamins that the body requires.
I also thank my friend Luis who made it possible for me to complete this assignment by the use of his computer and printer.
This project is acquired with informable information about vitamins A, B1, B3, C, D and K.
It will inform you on their various functions in the body, the sources which they are from and their deficiencies.
Vitamin A (retinol and beta-carotene)
Vitamin A and carotene can be obtained from either animal or vegetable sources. The animal form is divided between retinol and dehydroretinol whereas the vegetable carotene can be split into four very potent groups - alpha-carotene, beta-carotene, gamma-carotene and crypto-carotene. With enough beta-carotene available in the body, the body can manufacture its own vitamin A.
Functions of Vitamin A
Vitamin A is required for night vision, and for a healthy skin. It assists the immune system, and because of its antioxidant properties is great to protect against pollution and cancer formation and other diseases. It also assists your sense of taste as well as helping the digestive and urinary tract and many believe that it helps slow aging.
It is required for development and maintenance of the epithelial cells, in the mucus membranes, and your skin, and is important in the formation of bone and teeth, storage of fat and the synthesis of protein and glycogen.
Deficiency of Vitamin A
A deficiency of vitamin A may lead to eye problems with dryness of the conjunctiva and cornea, dry skin and hair, night blindness as well as poor growth.
Dry itchy eyes that tire easily are normally a warning of too little vitamin A. If the deficiency become severe, the cornea can ulcerate and permanent blindness can follow.
Abscesses forming in the ear, sinusitis, frequent cold and respiratory infections as well as...