Vitamin A and Immune System
Vitamin A is essential for natural defenses in the body. It helps the mucous barriers in the genitals, gut, lungs, and eyes prevent bacteria and infectious components from penetrating. Also, the vitamin is necessary for the production of white blood cells, which capture and eliminate bacteria or pathogens from the bloodstream. A deficiency of vitamin A would make your body more prone to infections and slow your recovery from sickness. In those areas where malaria, measles, and other infections are prevalent, preventing a deficiency of vitamin A can be effective in lowering the risk of fatality. [2]