Question

Is the term often used to express the amount of energy in foods?

Answer 1

Calorie

(Calorie most specifically means the amount of energy needed to raise one gram of water by one degree celsius.)

*But in the context of nutrition, we use calorie to describe how much energy a food contains and can transfer to the body. For example, a banana has about 105 calories. The average human adult needs about 1800-2000 calories per day depending on size and activity level.