Of the three Macronutrients (Carbohydrate, Protein, Fat), which provides the most calories per gram consumed?

Fat has the most calories of all the nutrients: 9 calories per gram. In a healthy diet, about 30 percent of total daily calories should come from fat. This means eating about 50 to 80 grams of fat each day. Fat gives the body energy, too, but the body changes only about 10 percent of fat into glucose.

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