The pet food is characterized by high content of products of animal origin among which the addition of beef liver influences the amount of easily digestible protein, vitamins soluble in fats, as well as zinc, magnesium and selenium. The profile of fatty acids has been varied by means of a flaxseed oil addition. Total content of polyunsaturated fatty acids influences maintenance of homeostasis of anti-inflammatory processes. High potato content influences improved digestibility of the pet food and constitutes a valuable additive regulating the course of digestive processes.