What calories physically are, and how things like water and celery have none whatsoever?

Question

What calories physically are, and how things like water and celery have none whatsoever?

In: Biology

Answer 1

Our society is terribly misleading on health. Calories are a unit of measurement of energy. We get energy from fats, carbohydrates, and proteins. Calories refers to the amount of energy required to raise 1 gram of water 1 degree Celsius. Water has no carbohydrates, proteins or fats, hence no calories. Celery is composed of a fibre that humans cannot digest, and so it passes through without breaking down in the enzymes our bodies utilize.