The aim of the study was to study the relationship between aldosterone and the degree of obesity in patients with type 2 diabetes associated with chronic heart failure.The features of metabolic and hormonal disorders were studied in 65 patients with DM2 and CHF, including 29 women and 36 men.The patients were subjected to anthropometric studies (OT, OB, OT/OB, BMI). The interpretation of BMI indicators was carried out in accordance with WHO recommendations. In the studied groups of subjects, lipid fluctuations varied from normal values to their significant deviations in group 3 of patients with grade 2 obesity.The main physiological effects of aldosterone that are important in CHF are 1) sodium and fluid retention (activation of renal aldosterone receptors); 2) activation of aldosterone-dependent; 3) increased excretion of potassium and magnesium; 4) delayed excretion of norepinephrine.So, our results confirm the results of these studies and require further study.In 54.5% of patients with DM2 and CHF with obesity of the 1st degree and 81.8% of patients with obesity of the 2nd degree, an increased level of plasma aldosterone is determined, accompanied by an increased content of renin, p < 0.05