The primary role of vitamins in the body is to serve as essential nutrients that support various biochemical processes necessary for maintaining health. Vitamins are organic compounds that the body requires in small amounts for normal physiological functions. Each vitamin has specific roles; for example, vitamin C is crucial for immune function and collagen synthesis, while B vitamins aid in energy metabolism. They help regulate metabolism, enhance immune response, promote healthy skin, and support growth and development. Since vitamins cannot be synthesized in adequate quantities by the body, they must primarily be obtained through a balanced diet rich in fruits, vegetables, whole grains, and proteins.