IDNLearn.com makes it easy to get reliable answers from experts and enthusiasts alike. Join our Q&A platform to access reliable and detailed answers from experts in various fields.
Answer:
The calories in food come from carbohydrates, proteins, and fats. A gram of carbohydrate contains 4 calories. A gram of protein also contains 4 calories. A gram of fat, though, contains 9 calories — more than twice the amount of the other two.
Explanation: