Fatty liver disease is a condition in which fat builds up in your liver. There are two types of fatty liver disease: non-alcoholic fatty liver disease (NAFLD) and alcoholic liver disease. NAFLD is made up of simple fatty liver and non-alcoholic steatohepatitis (NASH). The primary risks include alcohol, type 2 diabetes, and obesity. Postprandial hypoglycemia frequently occurs in NAFLD patients.