NUTRITION
NUTRITION AND PHYSICAL ACTIVITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Protein and carbohydrates have how many calories per 1g?
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3
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4
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7
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8
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Explanation:
Detailed explanation-1: -How many calories are in one gram of fat, carbohydrate, or protein? Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram. This information is also included at the end of the Nutrition Facts label on food packages.
Detailed explanation-2: -A gram of protein is always four calories, but you will have to use energy to digest it. The energy needed to digest protein is 0.8-1.2 calories per gram, leaving you effectively with 2.8-3.2 surplus calories per gram of protein. Pure amino acids are “pre-digested” and should thus be quite close to 4 calories per gram.
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