How do we measure energy in food?

Answer 1

Energy in food is measured in calories.

If you burn 1 gram of fat, you will get 9 calories.
If you burn 1 gram of carbohydrates, you will get 4 calories.
If you burn 1 gram of protein, you will get 4 calories.

Answer 2

Calories. The calorie used in food is the amount of energy required to heat 1 liter of water 1 degree celsius. This is technically the kilocalorie. The SI calorie is the amount of energy required to heat 1 gram (1 mL) of water 1 degree celsius.

Answer 3

This is measured in a device called a "bomb calorimeter", a sealed vessel that is filled with a dehydrated food sample and pure oxygen. When this mixture is ignited the amount of heat released is measured and the result used to calculate the the energy in food Calories.

Answer 4

The official unit for any type of energy is the Joule. Food energy is sometimes measured in calories instead.

Answer 5

Food energy, like any energy, is measured in Joule. The older unit "calorie" is also still used sometimes.

Answer 6

The Unit of the food energy content is kcal.....(may be)

Answer 7

The name of this unit is a calorie; though typically the amount of energy referenced on nutrition labels is actually measured in kilocalories.

Answer 8

Calories are used to measure the energy in food, but scientists measuring energy, even in food, would use joules.

Answer 9

Calories