Vitamin A represents an essential nutrient, important in maintaining healthy corneas and skin and supporting your immune system. Your body relies on vitamin A from your diet, as well as vitamin stores in your liver, to help maintain healthy tissue...
In addition to serving as a window to the soul, your eyes and sense of sight likely play a major role in your daily life. Your eyes contain a number of tissues: an exterior corneal layer, light-focusing lens, pigmented iris, viscous fluid that...
Vitamin A plays an essential role in the maintenance of epithelial cells. Epithelial cells carry out a number of critical functions in the body, and a lack of vitamin A can cause a variety of conditions affecting the skin, eye, lungs, urinary...
Vitamin A is a collective term used to describe a group of related nutrients vital to vision, normal cell and immune system function, reproduction and bone growth. Deficiencies of these nutrients rarely occur in the U.S. Still, doctors use several...
Vitamin A is an essential fat-soluble vitamin that is important in maintaining the health of many of your organs, including your eyes. According to Medline Plus, of the National Institutes of Health, retinol is the active form of vitamin A that...
Vitamins are necessary for normal growth and development as cells and vital organs are continually nourished and sustained. Eating a well-balanced diet is the best way to get all the vitamins you need. If you take vitamin or herb supplements,...
Retinol, sometimes referred to as retinol A, is a chemical compound found in animal sources of vitamin A, such as dairy products, eggs, liver and kidneys. In the body, vitamin A is critical for vision, reproduction and bone and cell growth....
Vitamin A is a group of compounds that includes retinoids and carotenoids. Vitamin A from plant sources is a carotenoid that your body can transform into a retinol, while vitamin A from animal sources is already in a form of retinol that's easily...