â¢ NAMIB DESERT (noun) The noun NAMIB DESERT has 1 sense: 1. a desert in Namibia extending along the coast between the high plateau and the Atlantic Ocean. Familiarity information: NAMIB DESERT used as a noun is very rare.
Vitamin A is essential for good health. It promotes growth, the immune system, reproduction, and vision. However, recent research suggests that too much vitamin A, particularly in the form of retinol, may be bad for your bones.itamin A is a family of fat-soluble compounds that play an important role in vision, bone growth, reproduction, cell division, and cell differentiation. Vitamin A is important for healthy bones. However, too much vitamin A has been linked to bone loss and an increase in the risk of hip fracture.
1 Vitamin A is also important to maintaining healthy skin and it helps the body to resist infection. 2  Benefits of Vitamin A Vitamin A is important for the immune system, and it keeps skin and mucous membrane cells healthy.3  Vitamin A helps to fight cancer by inhibiting the production of DNA in cancerous cells. Foods That Contain Vitamin A Vitamin A can be found in both animal and plant foods. 2  It is found as retinol in animal foods and as carotenoids in plant foods. 3  These are compounds the body can convert into vitamin A. The single best source of vitamin A is liver.