How many kcal per gram are in carbohydrates?

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Multiple Choice

How many kcal per gram are in carbohydrates?

Explanation:
Carbohydrates provide energy at about 4 kcal per gram because their metabolism yields roughly 3.8 kcal for each gram of glucose oxidized, which is rounded to 4 kcal/g in nutrition labeling. This energy value is the standard for digestible carbohydrates, reflecting the typical energy released when glucose is oxidized in the body. In contrast, fats supply about 9 kcal/g and alcohol about 7 kcal/g, while dietary fiber contributes little energy because it isn’t fully digested in the small intestine (though some fermentable fiber can yield small amounts of energy).

Carbohydrates provide energy at about 4 kcal per gram because their metabolism yields roughly 3.8 kcal for each gram of glucose oxidized, which is rounded to 4 kcal/g in nutrition labeling. This energy value is the standard for digestible carbohydrates, reflecting the typical energy released when glucose is oxidized in the body. In contrast, fats supply about 9 kcal/g and alcohol about 7 kcal/g, while dietary fiber contributes little energy because it isn’t fully digested in the small intestine (though some fermentable fiber can yield small amounts of energy).

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