A gamma-glutamyl transferase (GGT) test measures the amount of the enzyme GGT in your blood. High levels of GGT may be a sign of liver damage. Learn more.

A gamma-glutamyl transferase (GGT) test is a blood test used to diagnose liver or bile duct issues. Alcohol, medications and health issues can cause high GGT levels.

Feb 11, 2025 · GGT is a common enzyme found in the liver and other organs. A GGT test is often part of a panel of tests that can also include alanine transaminase (ALT) and aspartate aminotransferase …

GGT is present in the cell membranes of many tissues, including the kidneys, bile duct, pancreas, gallbladder, spleen, heart, brain, and seminal vesicles. [7] It is involved in the transfer of amino acids …

2 days ago · January 14, 2026 GGT Explained: What It Means for Liver Health, Oxidative Stress, and Longevity Gamma-glutamyl transferase (GGT) is a powerful marker of liver stress, oxidative burden, …

A GGT (Gamma-glutamyl transpeptidase) test measures liver markers to determine how well the organ is functioning. The test can also detect and monitor alcohol use.

Gamma Glutamyl Transferase (GGT) - Elevated GGT is found in all forms of liver disease. Measurement of GGT is used in the diagnosis and treatment of alcoholic cirrhosis, as well as primary and …

Oct 27, 2025 · Gamma-glutamyl transferase (GGT) is an enzyme [1] found throughout the body, with the highest concentrations in the liver, kidneys, and gallbladder. This enzyme plays a crucial role in …

GGT is found in many organs. The highest levels are in liver cells. This test helps your doctor look for possible damage to your liver or problems with the liver ducts or gallbladder. It can also help tell the …

May 26, 2023 · According to the Mayo Clinic, the normal range for GGT levels is 9–48 units per liter (U/L). Normal values can vary due to age and sex. The GGT test can diagnose liver damage, but it …