Vitamin A actually is a group of antioxidant compounds that play an important role in vision, bone growth and health of the immune system. They occur naturally in both plant and animal tissues.
In general, there are two types of vitamin A, depending on the type of food source it comes from:
Beta carotene is one of the most prevalent and effective provitamin A carotenoids.
Vitamin A plays a vital role in bone growth, reproduction and immune system health. It also helps the skin and mucous membranes repel bacteria and viruses more effectively. It is essential to healthy vision, and may slow declining retinal function in people with retinitis pigmentosa.
A vitamin A deficiency in adults can provoke an ocular disease, reduced resistance to infections and / or dryness of the skin.
Foods rich in vitamin A are cod liver oil, egg yolk, carrots, spinach, tomatoes and beans. Supplementation with vitamin A or cod liver oil can also be provided