Vitamins
Vitamins are organic compounds found in foods and are required for many biochemical reactions in the body.
They are involved in a number of processes, including mineral and bone metabolism and cell and tissue growth. They also act as co-factors for energy metabolism. The B group of vitamins are of particular importance, and play many essential roles in cellular metabolism and health.
You get most of your vitamins through your diet, although some can be formed from precursors absorbed during digestion. For example, the body synthesizes vitamin A from the β-carotene in orange vegetables like carrots and sweet potatoes.
Figure 1. A healthy diet should include a variety of foods to ensure that the requirements of essential nutrients are met.
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