If a person consumes 80 g carbohydrate, 20 g protein, and 10 g fat, their total energy intake is 490 kcal.

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Prepare for the TCC Nutrition 101 Test. Study effectively through multiple choice questions with hints and explanations. Ensure you're ready for your exam!

Multiple Choice

If a person consumes 80 g carbohydrate, 20 g protein, and 10 g fat, their total energy intake is 490 kcal.

Explanation:
Energy from foods is calculated by multiplying grams of each macronutrient by the energy it provides per gram and then adding those values. Carbohydrate and protein each supply about 4 kcal per gram, fat supplies about 9 kcal per gram. So for 80 g carbohydrate: 80 × 4 = 320 kcal. For 20 g protein: 20 × 4 = 80 kcal. For 10 g fat: 10 × 9 = 90 kcal. Add them up: 320 + 80 + 90 = 490 kcal. The total energy intake is 490 kcal, which aligns with the given total. This also shows why fat contributes more energy per gram than carbs or protein.

Energy from foods is calculated by multiplying grams of each macronutrient by the energy it provides per gram and then adding those values. Carbohydrate and protein each supply about 4 kcal per gram, fat supplies about 9 kcal per gram. So for 80 g carbohydrate: 80 × 4 = 320 kcal. For 20 g protein: 20 × 4 = 80 kcal. For 10 g fat: 10 × 9 = 90 kcal. Add them up: 320 + 80 + 90 = 490 kcal. The total energy intake is 490 kcal, which aligns with the given total. This also shows why fat contributes more energy per gram than carbs or protein.

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