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Vitamins are

* An organic substance that acts as a coenzyme and/or regulator of metabolic processes and is crucial for many bodily functions. There are more than a dozen known vitamins, most of which are available in foods or supplements; some are produced within the body.

www.sfaf.org/custom/glossary.aspx * An essential low molecular weight organic compound required in trace amounts for normal growth and metabolic processes. They usually serve as components of coenzyme systems. For humans, vitamin A, the B series, C, D1 and D2, E and K are required. ...

www.nutritionperspectives.com/Other/siteGlossary.cfm

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13y ago

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