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What is a Carbohydrate?

By Jennifer R. Scott, About.com

Updated: August 10, 2008

About.com Health's Disease and Condition content is reviewed by our Medical Review Board

Definition: Carbohydrates are the main energy source for muscle functioning. Foods such as rice, bread, and cereal are carbohydrates.
Also Known As: carbs, carbos
Examples: A low-fat, carbohydrate-rich diet is comprised of many vegetables, fruits, grains, and cereals.
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