Interactive Nutrition Facts Label - Food and Drug Administration Vitamins are organic substances that are naturally present in many plant and animal products. People obtain vitamins from both the plant and animal products they eat. The human body also makes vitamins D and K. There are 14 vitamins that may be listed on the Nutrition Facts label: biotin, choline, folate, niacin, pantothenic acid, riboflavin, thiamin, and vitamins A, B 6, B 12, C, D, E, and K.