Why do one gram of fats give double the energy provided by one gram of carbohydrates? (Question of Grade 6)
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Answer:Fats are the slowest source of energy but the most energy-efficient form of food. Each gram of fat supplies the body with about 9 calories, more than twice that supplied by proteins or carbohydrates. Because fats are such an efficient form of energy, the body stores any excess energy as fat.
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