- Vitamin A (retinol) promotes normal growth and development, fosters proper eyesight, mantains clear, healty skin and has been linked to cancer prevention. A vitamin is needed by the retina of the eye in the form of a specific metabolite, the light-absorbing moleculeretinal, that is absolutely necessary for both low-light (scotopic vision) and color vision.
Fresh carrot or green juices contain an ambulance of pro-vitamin A (beta carotene). Pro-vitamin A is easily converted to usable vitamin A in the liver. Unlike syntethic vitamin A, which is toxic in high doses, pro-vitamin A from food sources is safe even in large amounts.