Gamma-Glutamyltransferase (GGT)
Liver blood
What It Is
GGT is a liver enzyme that helps transport amino acids and peptides. It is sensitive to alcohol and bile duct issues.
Why It Matters
GGT is the most sensitive enzymatic marker for bile duct disease and is commonly elevated with regular alcohol use.
If Levels Are High
Elevated GGT may indicate liver disease, bile duct obstruction, or excessive alcohol consumption.
If Levels Are Low
Low GGT is normal and not a concern.
Preparation
Avoid alcohol for 24 hours before the test.
How Often to Test
Annually, or as clinically indicated.
Important Disclaimer
This information is for educational purposes only and does not constitute medical advice or diagnosis. Results should be interpreted in clinical context by a qualified healthcare professional. If you have severe symptoms or urgent concerns, seek urgent medical help.