Metabolic and nutritional care implies procedures which involve normalization or improvement of metabolic deviations in chronic renal insufficiency and failure by dietary and medicamentous means. The therapeutic procedure not only improves some metabolic disorders associated with a decline of the excretory and metabolic endocrinological renal function but can have a positive impact also on progression of renal insufficiency. Conservative treatment thus involves low protein diets, modification of electrolyte and water intake, adjustment of the acid-base balance, Ca, P metabolism, haemogram, hypertension, proteinuria and hyperlipidaemia. In non-diabetic subjects it is sufficient to achieve a glomerular filtration of 0.2 ml/sec. and serum creatinine of 500 - 600
mol/l.

        Key words: Chronic renal insufficiency and failure - Dietetic treatment - Conservative treatment - Metabolic nutritional modifications