Vitamin A. Molecular model of vitamin A, also called retinol (formula: C20H30O). The atoms are spherical and colour-coded: carbon (blue), oxygen (red) and hydrogen (white). Vitamin A is essential for normal growth, for bone and teeth formation, night vision and for protecting against infection. It is found in animal foods such as liver, fish- liver oil, eggs and dairy products. Carotene, from sources such as green vegetables and fruits, is converted into vitamin A in the liver. Deficiency leads to night-blindness, dry skin and eyes, and reduced resistance to infection. Prolonged excess intake can cause hypervitaminosis A, leading to nausea, hair loss and liver damage.
Model release not required. Property release not required.