What does vitamin A do in the human body?

Vitamin A plays a pivotal role in the healthy functioning of the human body by maintaining the immune system, promoting growth and development, and supporting the formation of vision. Vitamins A and D, two of the most commonly found retinoids in the body, are directly responsible for enabling the body to absorb the vast majority of sunlight’s radiation to turn into the energy that keeps our bodies functioning. Vitamins A and D are also involved in regulating the production of sex hormones, blood clotting, and the activity of various enzymes. When levels of Vitamin A are deficient, and especially when levels are low in combination with the presence of other deficiencies or diseases, this may lead to several different health problems, including skin conditions, eye diseases, osteoporosis.

Vitamin A is an antioxidant that helps maintain your body’s natural defenses against the damaging effects of free radicals. Vitamin A plays an essential role in our vision by enhancing the efficiency of the. retina’s photoreceptors, which converts light to electrical signals that travel along the nerve fibers to the brain.

Vitamin A deficiency causes night blindness and albinism, an uncommon genetic condition in which people do not produce melanin in the skin and hair. Vitamin A deficiency can cause slow growth, weak immune systems, skin cancer, rickets (interstitial cystitis), weak bones and teeth, impaired muscle development, and mental retardation.