Vitamins are organic substances found in plant and animal foods. Small amounts of vitamins are essential for normal growth and activity of the body. Vitamins that are important for human health include Vitamin A, Vitamin D. Vitamin E, Vitamin K, Vitamin C, Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenate and Biotin.
Human vitamin and mineral requirements. Report of a Joint FAO/WHO Expert Consultation. FAO/WHO non-series publication. Rome: Food and Agriculture Organization, 2002.