Explanation Vitamin A (Retinol) is fat soluble, mainly found in carrots, yellow fruits, leafy green vegetables, butter, liver, egg yolk and fish liver oil. It is required for normal growth and keeps the skin healthy. It forms a component of visual purple in the retinal cells of the eye Deficiency of Vitamin A causes: Night blindness- a condition in which the patient is unable to see clearly in dim light. Xeropthalmia - a condition in which the patient complains of dryness in the eyes. Dermatosis- a condition in which the skin becomes dry and scaly. Vitamin B Complex Vitamin B Complex is a group of water soluble vitamins, which generally function as coenzymes in metabolic reactions occurring in the cells. The complex consists of Vitamin B1 (Thiamine), Vitamin B2 (Riboflavin), Vitamin B5 (Pantothenic acid), Vitamin B6 (Pyridoxine), Biotin, Nicotinic acid, Folic acid and Vitamin B 12 (Cobalamin). Vitamin B1 Whole grains, yeast, liver, eggs and lean meat are rich in Vitamin B1. Its deficiency causes Beri-beri in which infected individuals suffer wasting of muscles, paralysis, mental confusion and sometimes heart failure. Nicotinamide Yeast, lean meat, liver, milk, eggs, groundnut and whole grains are rich in nicotinamide. Its deficiency causes Pellagra with symptoms of dermatitis, muscle weakness and mental disturbance. Vitamin C Vitamin C is water soluble and mostly found in fresh citrus fruits like limes, lemons, oranges, and grapefruit. Its deficiency causes scurvy. The symptoms include spongy and bleeding gums, loosening of teeth and impaired wound healing. Vitamin D (Calciferol) Vitamin D is fat soluble and is the only vitamin that the human body can synthesise. It is produced by the skin in the presence of sunlight. Fish liver oils, milk and eggs are rich in vitamin D. Its deficiency causes Rickets. It is a disease of young children where faulty calcification of bones produce bowed limbs. Vitamin K Vitamin K is a fat soluble vitamin. Leafy green vegetables, cabbage and spinach are rich in Vitamin K. It is essential for normal clotting of blood. Its deficiency leads to haemorrhage.