GGT

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Gamma-glutamyl transferase (GGT) is an enzyme found mainly in the liver, though it occurs throughout the body. It helps protect cells from damage.

Why it matters: A high level can indicate conditions affecting the liver, the heart or other organs. GGT on its own cannot identify the cause of the damage.

Source · Cleveland Clinic — what it is, why it matters, what moves it, related conditions

Reference Range
< 73.0U/L
73NormalHigh
What Moves It

May increase with:

Hepatitis
Cirrhosis
Fatty liver disease
Liver cancer
Alcohol use disorder
Pancreatitis
Diabetes
Congestive heart failure
Some medicines
Smoking
Associated Conditions
A condition or disease damaging the liver, which higher-than-normal levels may indicate, though GGT alone cannot identify the specific cause
Related Markers
ALTASTalpBilirubin (Total)
Common questions

What is GGT?

Gamma-glutamyl transferase (GGT) is an enzyme found mainly in the liver, though it occurs throughout the body. It helps protect cells from damage.

What might a high or low GGT mean?

A high level can indicate conditions affecting the liver, the heart or other organs. GGT on its own cannot identify the cause of the damage.

What is the typical reference range for GGT?

The general-population reference range shown here is < 73 U/L. Reference ranges describe the general population and are not a personal target — discuss your results with your physician.

What can affect GGT?

It may be higher with: Hepatitis, Cirrhosis, Fatty liver disease, Liver cancer, Alcohol use disorder, Pancreatitis, Diabetes, Congestive heart failure, Some medicines, Smoking.

More in Liver
AlbuminAlkaline PhosphataseALTASTBilirubin (Direct)Bilirubin (Indirect)Bilirubin (Total)LDH

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