Non-alcoholic Fatty Liver Disease consist of constellation of conditions that occur due to buildup of fat in the liver. NAFLD usually progresses in 4 stages and at the last stage can lead to liver failure. Although most people usually develop and remain at the first stage of it without realizing it. The stages of NAFLD include steatosis (simple fatty liver) -> non-alcoholic steatohepatitis (NASH) -> fibrosis -> cirrhosis (can lead to liver failure) Text Source: https://www.nhs.uk/conditions/non-alcoholic-fatty-liver-disease/ Image Source: https://www.healthline.com/nutrition/fatty-liver