Explain Relationship of Vitamins and Mineral with physiology

They play a major role in the body's functioning. Vitamin A is necessary for night vision in the eyes. Vitamin B complex - a collection of 12 components helps the functioning of the body in many ways (nerve transmission, RBC formation, skin texture). Vitamin C for small blood vessels and to work against scurvy. Vitamin D and E for bones and skin development and vitamin K for blood clotting. This comes from various food products. They are used by the body in different ways.