ABSTRACT
The children suffering from chronic affections of the biliary system showed disturbances of the exocrine and esterifying function of the liver. They also had impaired concentration and disordered motor function of the gall bladder. This reverberates on the lipid spectrum of blood, bile and ion permeability of erythrocyte membranes. Comprehensive therapy in the presence of oil-enriched diet (up to 40% of the total fat amount) exerted a favourable action on the clinical course of the disease, promoted normalization of the lipid spectrum of blood and bile, and stabilization of the structural composition of the membranes. This allows recommending such a therapeutic diet as one of the components of comprehensive pathogenetically validated therapy of children with chronic cholecystocholangitis.