Vitamins are organic compounds that people need in small quantities

Vitamins are organic compounds that people need in small quantities. Each has a different role in maintaining health and bodily function.

Each organism has different vitamin requirements. For example, humans need to get vitamin C from their diets — while dogs can produce all the vitamin C that they need.

Most vitamins need to come from food because the body either does not produce them or produces very little.

For humans, vitamin D is not available in large enough quantities in food. The human body synthesizes the vitamin when exposed to sunlight, and this is the best source of vitamin D.

Different vitamins play different roles in the body, and a person requires a different amount of each vitamin to stay healthy.

This article explains what vitamins are, what they do, and which foods are good sources. Follow the links in blue below for more information about each vitamin.