Which of the following has the maximum calorific value?

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Which of the following has the maximum calorific value? Answer: Fats

Calorific value is the energy released per gram of a nutrient: • Fats → ~9 kcal/g (highest) • Carbohydrates → ~4 kcal/g • Proteins → ~4 kcal/g • Vitamins → negligible calories