Question

Among the three categories of major food nutrients, which one has maximum calorie output?

• A. Fat
• B. Protein
• C. Carbohydrate
• D. B & C

Answer 1

The correct option is A

Fat

The three categories of food are carbohydrates, proteins and fat. Fats give out maximum calorie per gram which is higher than the output by either protein or carbohydrates. A gram of fat produces about 9 calories, while a gram of carbohydrate or protein gives about 4 calories each.