General Guidelines For Vitamin Supplements
What are vitamins and why are they important?
Vitamins are organic substances that are essential for the proper growth and functioning of the body. Unlike protein, fat, and carbohydrates, vitamins provide no calories. However, they are necessary (in small amounts) for normal chemical reactions (metabolism) inside the body. Vitamins must be obtained from food because the body cannot produce them. (The exception is vitamin D, which can be produced by the skin when it is exposed to the sun). If the intake of vitamin(s) is insufficient due to poor nutrition, restricted diets, or inadequate intestinal absorption of the vitamins, diseases can occur.
Here are general guidelines to follow:
For more information, please read the Vitamin and Calcium Supplements article.
Last Editorial Review: 4/16/2003
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