We measure energy

Each bottle or can or other package has written on it, how much energy is in the food and drink inside.

What are we talking about here

It is also possible to measure the amount of heat stored in the body. This is how we can determine the specific heat of materials. This is important information if we want to use the materials in the construction of some device.

Similar to determining the specific heat of a material, we can also determine a quite important parameter in everyday life - the nutritional value of food. How?