Is GGT 163 high, normal or dangerous? What does Gamma glutamyl transferase level 163 mean?

📅 Medical Review Date: November 29, 2025

Your GGT level of 163 is a High GGT level.

High GGT levels may indicate underlying health problems. The normal range is typically between 15 U/L and 85 U/L. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal GGT range for men is :15 - 85 U/L

Ideal values of GGT depending on age (male) :

Age	Ideal GGT value
<5 years	15.245
5-10 years	15.493
10-15 years	15.746
15-20 years	16.003
20-25 years	16.264
25-30 years	16.529
30-35 years	16.798
35-40 years	17.072
40-45 years	17.35
45-50 years	17.633
50-55 years	17.92
55-60 years	18.212
60-70 years	18.509
70-80 years	18.811
80-90 years	19.118
90-100 years	19.43
>100 years	19.747

*Ideal values are calculated based on our database of patient records

Misdiagnosis is more common than people think—and the consequences can be serious. Delayed treatment, unnecessary medication, or worse. If you want a second opinion on your blood work, one option is to upload it to a site like wholebodyprotocol.com, where world-class doctors review your results. They charge a small fee—around $90 (though you'll want to check the latest price as it fluctuates)—and email you a detailed report. With over 12 million people affected by misdiagnosis every year, that little bit of extra peace of mind can go a long way.

Some examples of conditions that increase or decrease GGT levels include:

• Blockage of the bile ducts.
• Cardiovascular disease
• Liver diseases
• Alcohol abuse
• Congestive heart failure

Normal range of GGT found among women :15-85 U/L

Ideal values of GGT depending on age (female) :

Age	Ideal GGT value
<5 years	15.252
5-10 years	15.508
10-15 years	15.768
15-20 years	16.033
20-25 years	16.302
25-30 years	16.576
30-35 years	16.854
35-40 years	17.137
40-45 years	17.425
45-50 years	17.718
50-55 years	18.015
55-60 years	18.317
60-70 years	18.625
70-80 years	18.938
80-90 years	19.256
90-100 years	19.579
>100 years	19.908

If you take a GGT blood test and the results are not in the normal range (15-85 U/L), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the GGT Test Is Done :

When your doctor orders a GGT test, it involves a straightforward blood draw to measure your GGT levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your GGT test results are usually available within a few hours.

Medical References

• MedlinePlus – Gamma-glutamyl Transferase (GGT) Test
• Cleveland Clinic – Gamma-Glutamyl Transferase (GGT) Test: What It Is & Results
• WebMD – Gamma-Glutamyl Transpeptidase (GGT) Test

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