What is GGT?
a liver enzyme that picks up alcohol use
GGT is a liver enzyme particularly sensitive to alcohol use and certain medications. Together with ALP it helps locate the source of liver effects.
Raised GGT appears with alcohol use, fatty liver, bile flow problems, and medication effects. It is non-specific but useful in lifestyle assessment.
Test facts
- Unit
- µkat/L
- Sample
- Serum
- Fasting
- No fasting needed
- Turnaround
- 1 day
What does low GGT mean?
Low GGT is not clinically significant.
What does high GGT mean?
High GGT should prompt a review of alcohol and medications. Persistent elevation needs further investigation.
Panels that measure GGT
- Deep Baseline
- Male Annual
- Heart & Vessels
- Diabetes & Metabolic
- Metabolic Deep Dive
- Liver Check
More markers in the same area
Launching in Stockholm in 2026.
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This is general information about the marker, not an assessment of your values and not medical advice. Last updated: May 2026.