Measurement of the amount of heat produced during metabolism is how content of food is measured. Heat is measured by a unit called a kilocalorie (kcal)or just __ Foods vary in amount of energy they contain Carbohydrate , protein underline ( )calories/gram Fat __ calories/gram

The measurement of the amount of heat produced during metabolism is how the energy content of food is measured. Heat is measured by a unit called a kilocalorie (kcal) or just calories. Foods vary in the amount of energy they contain. Carbohydrates and proteins contain 4 calories per gram, while fat contains 9 calories per gram.