NCT02828579COMPLETEDN/AUp to 300 million people have a BMI over 30kg/m2. Obesity is the cause of many serious diseases, such as type 2 diabetes, hypertension and NAFLD. Bariatric surgery is the only effective method of achieving weight loss in patients with morbid obesity. The aim of the study is to assess the impact of bariatric surgery on non-alcoholic fatty liver disease in patients operated on due to morbid obesity.
Inclusion Criteria: Patients at the age of 18-60, meeting the criteria of qualification for the surgical treatment of obesity, i.e. BMI \> 40 kg/m2 or BMI \> 35 kg/m2 together with accompanying diseases. Exclusion Criteria: * chronic mental diseases * addictions * earlier bariatric procedures