Which macronutrient provides the most energy per gram?

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Study for the NANP Board Domain I Food and Nutrition Exam. Utilize flashcards and multiple-choice questions, each with hints and explanations. Prepare thoroughly for your test!

Multiple Choice

Which macronutrient provides the most energy per gram?

Explanation:
Energy density is the amount of energy you get per gram of a nutrient. Fat is the most energy-dense macronutrient, delivering about 9 kilocalories per gram. Carbohydrates and protein provide about 4 kcal/g, while alcohol gives around 7 kcal/g but is not considered a nutrient. So, among true macronutrients, fat supplies the most energy per gram.

Energy density is the amount of energy you get per gram of a nutrient. Fat is the most energy-dense macronutrient, delivering about 9 kilocalories per gram. Carbohydrates and protein provide about 4 kcal/g, while alcohol gives around 7 kcal/g but is not considered a nutrient. So, among true macronutrients, fat supplies the most energy per gram.

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