Vitamins are organic substances present in small amounts in food, they are required for carrying out vital functions of the body. They are involved in the utilization of the major nutrients like proteins, fats and carbohydrates. Though needed in small amounts, they are essential for health and well being of the body. When these Vitamins were discovered on the basis of their function and before their chemical nature were elucidated, they were designated as A,B,C,D or in terms of their major functions like, antineuritic, antirichitic Vitamins. Vitamins are classified based on their solubility as fat soluble and water soluble vitamins.