Vitamins are organic substances that humans require in trace amounts. Each plays a distinct part in preserving physical and mental well-being. Because the body either cannot create vitamins or only generates very little of them, the majority must be obtained through diet. For example, humans need to get vitamin C from food. However, vitamin D is not present in food in sufficient amounts for humans. The best way to get vitamin D is through sunshine exposure or supplementation. To find the vitamins for you, use the filters below.