Vitamins are organic compounds that our bodies need in small amounts to function properly. They play crucial roles in various bodily processes, such as metabolism, immune function, and cell growth. There are 13 essential vitamins, including vitamin A, B vitamins (such as B1, B2, B3, B6, B12), vitamin C, vitamin D, vitamin E, and vitamin K. Each vitamin has specific functions and benefits for overall health and well-being. While our bodies can produce some vitamins (like vitamin D) through sunlight exposure or certain gut bacteria, most vitamins are obtained through diet or supplementation.