GGT is an abbreviation for glutamyl transpeptidase, which is one of the indicators of liver function tests.GGT is mainly found in intrahepatic bile duct epithelial cells and hepatocyte plasma and is involved in the metabolism of glutathione. When the intrahepatic bile ducts and extrahepatic bile ducts are obstructed, GGT will be elevated. the normal detection range of GGT is 10-60 U/L. Elevated GGT is mostly seen in the following diseases: drug-related liver damage, alcoholic fatty liver, non-alcoholic fatty liver, primary cholestatic cholangitis, primary sclerosing cholangitis, hepatitis cirrhosis, alcoholic cirrhosis, etc. It is best to abstain from alcohol, low-fat diet, and proper exercise. when GGT is high, you can take oral ezetimibe, hydralinga, etc.