Functions of Vitamin A
Significance of vitamin A
Vitamin A is basically a fat-soluble vitamin that has significant importance for health. Vitamin A is present in two forms as provitamin and preformed vitamin.
- Vision
For preserving your vision and eyesight, vitamin A is significant. Vitamin A converts the rays of light, which your eyes capture and change them to an electrical signal, and these signals are sent to the brain for creating an image.
Vitamin A deficiency can cause night blindness or nyctalopia. Nyctalopia is a type of disease in which a person can’t see clearly during night time.
Age-related macular degeneration (AMD) is the common cause of blindness. Vitamin A can help in reducing the incidence of this disease by reducing free radicals in the body.
- Immunity
For the maintenance of the natural defense system of the body, vitamin A plays a significant role. Vitamin A accelerates the production of white blood cells (immunity cells) in the body. Other than it, vitamin A also aids in capturing and clearing the body pathogens.
- Bone density ad bone health
The bone diseases as bone osteoporosis and maldevelopments can occur due to deficiency of vitamin A. A good dose of vitamin A can help in decreasing your risks of bone fractures and diseases.
- Cancer risk
Cancer is the outcome of the abnormal cell division. According to researches, there are pieces of evidence about vitamin A in reducing the risk of cancers. Bladder cancer, Hodgkin’s lymphoma, cervical cancer, and lung cancer are preventable with the intake of vitamin A.