Vitamins are organic compounds essential for the proper functioning and maintenance of the human body. They play crucial roles in various biochemical processes, acting as cofactors for enzymes. There are water-soluble vitamins (e.g., vitamin C, B-complex) and fat-soluble vitamins (e.g., vitamins A, D, E, K). Obtained through a balanced diet, vitamins are vital for growth, immunity, and overall health.