The pet food is a source of a full-value protein with a high content of all exogenous aminoacids, of which poultry products are a valuable supplement. Chicken hearts are a source of leucine and phenylalanine, copper, iron, zinc and polyunsaturated fatty acids from the n-6 group. Total content of fatty acids in food has been supplemented with an addition of flaxseed oil. Thanks to such composition of fatty acids the food provides the correct control of antiinflammatory processes. Brown rice constitutes an addition providing the necessary amount of carbohydrates needed for regulation of metabolic processes of proteins and fatty acids. It is alsoa valuable source of vitamins from B group and microelements. Moreover, as a source of dietary fibres, brown rice improves digestive functions in a gastrointestinal tract.