Energy from food is measured in ...

1) Joules

2) Watts

3) Calories

4) Kilograms

Energy from food is measured in calories. We convert the calories into chemical energy.

Therefore, the answer is the 3rd choice.

A calorie is a unit that is used to measure energy. The Calorie you see on a food package is actually a kilocalorie, or 1,000 calories. A Calorie (kcal) is the amount of energy needed to raise the temperature of 1 kilogram of water 1 degree Celsius. May 19, 2003