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Also reported in: U/L
A normal GGT level means the liver is not under significant induction stress from alcohol, medications, or bile duct obstruction. GGT is particularly useful for confirming liver-source ALP elevations, and a normal GGT together with normal ALP provides strong reassurance about bile duct health. GGT rises quickly with even moderate alcohol use.
GGT is a liver and bile duct enzyme that rises with alcohol consumption, bile duct obstruction, fatty liver disease, and certain medications. A very low GGT is a highly reassuring result indicating no significant liver metabolic stress, no bile duct obstruction, and minimal alcohol-related enzyme induction.
Excellent liver health indicator. Very low GGT is reassuring across all liver health dimensions.
GGT: {{value}} {{unit}} — very low (ref: {{low}}–{{high}})A low GGT is consistent with that the liver is not under biochemical stress from alcohol, fatty infiltration, bile duct obstruction, or hepatic enzyme induction. GGT is one of the most sensitive markers for these conditions, so a genuinely low level provides comprehensive reassurance about liver health.
Great liver health result. No action needed.
GGT: {{value}} {{unit}} — low (ref: {{low}}–{{high}})A borderline low GGT is entirely within the healthy range and is consistent with no significant liver metabolic stress or bile duct obstruction. This is a favorable liver health marker, especially combined with normal ALT and ALP.
No action needed. This is a healthy liver enzyme result.
GGT: {{value}} {{unit}} — low normal (ref: {{low}}–{{high}})A normal GGT level means the liver is not under significant induction stress from alcohol, medications, or bile duct obstruction. GGT is particularly useful for confirming liver-source ALP elevations, and a normal GGT together with normal ALP provides strong reassurance about bile duct health. GGT rises quickly with even moderate alcohol use.
Normal result. If monitoring alcohol use, GGT is a useful ongoing marker — it normalizes within weeks of abstinence.
GGT: {{value}} {{unit}} — normal (ref: {{low}}–{{high}})An optimal GGT indicates the liver is processing without enzyme induction, bile duct stress, or fatty infiltration. Low GGT is associated with lower risk of liver disease, cardiovascular disease (through oxidative stress pathways), and metabolic syndrome. GGT is a sensitive marker for liver health and oxidative stress.
Excellent liver health marker. Continue avoiding excess alcohol and maintaining a healthy weight.
GGT: {{value}} {{unit}} — optimal (ref: 8–40)A borderline elevated GGT is a common finding and is highly sensitive to alcohol consumption — even a few drinks per week can push GGT above normal. It also rises with fatty liver disease, certain medications (antiseizure drugs, statins), and early bile duct changes. GGT normalizes relatively quickly (within weeks to months) after removing the triggering factor.
Review alcohol intake and current medications with your doctor. Reducing alcohol and rechecking GGT in 4–6 weeks will is consistent with whether it normalizes.
GGT: {{value}} {{unit}} — borderline elevated (ref: {{low}}–{{high}}; borderline: 61–100)An elevated GGT indicates significant liver enzymatic stress. At this level, alcohol-related liver disease, non-alcoholic fatty liver disease (Fatty liver not from alcohol (NAFLD)), significant medication effects, or bile duct obstruction are common may contribute to. GGT elevation in combination with elevated ALP is consistent with a cholestatic (bile-related) liver pattern. High GGT also independently predicts cardiovascular and metabolic risk.
Medical evaluation is needed. Liver ultrasound, hepatitis screening, alcohol history, and medication review should be performed. Significant lifestyle modification is typically the first intervention.
GGT: {{value}} {{unit}} — elevated (ref: {{low}}–{{high}}; elevated: >100)A very high GGT above 500 IU/L signals major liver disease or complete bile duct obstruction. This level is associated with noticeable alcoholic hepatitis, advanced cholestatic liver disease, primary biliary cholangitis, or malignant bile duct obstruction. The liver is profoundly stressed and normal bile flow is very disrupted.
Urgent hepatology evaluation is needed. Liver imaging, ERCP, and comprehensive liver workup should be arranged as an emergency.
GGT: {{value}} {{unit}} — very high (ref: {{low}}–{{high}}; critical: >500)Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.