In the special outpatient clinic for fatty liver disease, patients with fatty liver disease are evaluated and cared for. This includes diagnostic and therapeutic care and the entire spectrum of non-alcoholic fatty liver, from bland steatosis to non-alcoholic fatty liver hepatitis (NASH) and alcoholic (ASH) fatty liver hepatitis with associated complications, such as liver fibrosis or liver cirrhosis. New diagnostic and therapeutic concepts are also developed and put into practice within the framework of clinical studies.