Vitamin A is a fat soluble nutrient. Functions of Vitamin A: Vitamin A contributes to normal iron metabolism Vitamin A contributes to the maintenance of normal mucus membranes Vitamin A contributes to the maintenance of normal skin Vitamin A contributes to the maintenance of normal vision Vitamin A contributes to the normal function of the immune system Vitamin A is a fat soluble nutrient. Functions of Vitamin A: Vitamin A contributes to normal iron metabolism Vitamin A contributes to the maintenance of normal mucus membranes Vitamin A contributes to the maintenance of normal skin Vitamin A contributes to the maintenance of normal vision Vitamin A contributes to the normal function of the immune system