Bread is a source of carbohydrates.
The definition of a carbohydrate is an organic compound that occurs in living tissues or food and that can be broken down into energy by people or animals.
Sugar is an example of a carbohydrate.
any of certain organic compounds, including the sugars, starches, and celluloses, which usually have the general formula C(HO): carbohydrates are subdivided into monosaccharides, disaccharides, etc., and form an important class of foods in animal nutrition, supplying energy to the body
Origin of carbohydratecarbo- + hydrate
Any of a group of organic compounds that includes sugars, starches, celluloses, and gums and serves as a major energy source in the diet of animals. These compounds are produced by photosynthetic plants and contain only carbon, hydrogen, and oxygen, usually in the ratio 1:2:1.
From their general formula Cn(H2O)n; they were once thought to be hydrates of carbon.