Non-alcoholic fatty liver disease (NAFLD) is caused by a build-up of fat in the liver, typically seen in people who are overweight or obese.

NAFLD is a progressive disease: starting from simple fatty liver (steatosis), NAFLD progresses to non-alcoholic steatohepatitis (NASH), to fibrosis, and ultimately to cirrhosis.

NICE CKS -Β Non-alcoholic fatty liver disease

» Terminology