The amount of energy from the breakdown of fats, proteins and carbohydrates.

Carbohydrates are organic compounds, they perform a building and energy function and consist of monosaccharides and polysaccharides in the process of splitting 1 g of carbohydrates, 17.6 kilojoules of energy are released
Fats, which have another name – water-insoluble lipids, are complex organic substances. at a temperature of 20 ° fats decompose into solid and liquid. fats serve as a source of energy, during the breakdown of 1 g of fat, 38.9 kilojoules of energy are released
Protein monomers are amino acids. proteins perform a building function, serve as catalysts and promote motor function. Proteins serve as a source of energy in the cell, perform an energy function. when fully digested, 1 g of protein releases 17.6 kilojoules of energy
1 calorie of energy warms 1 g of water 1 ° C