INTRODUCTION: There are few studies on the assessment of nutritional status in patients with asthma in combination with chronic hepatitis B (HBV) infection, which forced us to initiate a study in this regard. MATERIAL AND METHOD: The study included 71 patients (women - 51 (71.83%), men - 20 (28.16%)) with asthma and positive serum markers for chronic HBV infection, among which 10 patients with HBsAg positive (women - 6 (60%), men - 4 (40%)) and 61 patients with HBsAg negative / anti HBcor total positive (women 45 (73.77%) ), men - 16 (26.22%)). Patients were assessed nutritional status by evaluating person’s height,weight and calculating body mass index (BMI). RESULTS: Patients with bronchial asthma in combination with chronic HBV infection with BMI 18.5 - 24.9 kg / m2 (normal weight) were 15 (21.12%); with BMI 25 - 29.9 kg / m2 ( overweight) were 23 (32,39%) and patients with BMI 30 - 34.9 kg / m2 (obesity grade I ) were 22 (30.98%), while with BMI 35 - 39.9 kg / m2 (obesity grade II) were 6 (8, 45%) and with BMI > 40 kg / m2 (obesity grade III ) were 5 (7.04%). Based on the data obtained, patients with asthma in combination with chronic HBV infection were predominant overweight and obese patients of different grade - 56 patients (78.87%) vs. 15 patients (21.12%) with normal BMI [p < 0.001 ]. CONCLUSIONS: Among the patients with asthma in combination with chronic HBV infection, in most cases the nutritional status has been altered (overweight and obesity).