The human body needs vitamins (A, B, C, D, E, K) for a number of reasons other than just having them in the body. Vitamin A, one of these vitamins, is an essential nutrient required for functions ranging from eye health to immunity. Vitamin A can be richly found in yellow-orange plants as beta carotene and animal produce as retinol.
The role of vitamin A
- Vitamin A helps protect the cornea (the surface of the eye), thus maintaining normal vision.
- It prevents keratomalacia, retinopathy, xerosis, nyctalopia, keratoconjunctivitis.
- Aids in cell reproduction.
- Carotenoids help protect sperm through from free radicals.
- Decreases the possibilities of miscarriage .
- Improves sperm quality and motility.
- Vitamin A promotes the rapid increase in T cells responsible for adequate immunity.
- Maintains skin health through the help of retinoic acid.
Signs you need vitamin A
Vitamin a is vital part of health, this means you need vitamin A in your everyday diet. When there is insufficient amount of vitamin A in your body, you may experience the following;
- Dry eyes
- Night blindness
- Dry skin
- Acne formation
- Hair loss
- Recurring infection
- Delayed growth
- Prolonged wound healing
Good Sources of vitamin A
Some good sources of vitamin A include;
- Oily fish
- Sweet potatos
Vitamin A can also be found in multivatimin and other supplements. An overdose of this vitamin could result in threatening health conditions. It is important to consult your physician before taking vitamin A supplements.