GGT / HDL Cholesterol Ratio

Combines a liver enzyme with heart-protective cholesterol to hint at cardio‑metabolic stress.

Last reviewedJune 16, 2026
Calculated
sample type
Not applicable (calculated)
blood needed
~7 days
results in app
Same as its component tests
best timing
TEST THIS WITH ANIVA
199 € / year
0.55 € a day · 100+ biomarkers
Get Started
Cheaper than a comparable test at your doctor. Guaranteed, or we match the price.
Privately insured? German PKV usually reimburses.
In short

The GGT/HDL cholesterol ratio is a calculated value, not a separate blood test. It is gamma-glutamyl transferase (a liver enzyme) divided by HDL cholesterol (a protective lipoprotein). It pairs a liver and oxidative-stress marker with a protective lipid.

Heart & Cholesterol
Reviewed against DGKL reference practice.
Why it matters

Why test this?

A higher GGT/HDL ratio reflects higher GGT, lower HDL, or both, a combination studied as a marker of insulin resistance, fatty liver, and cardiometabolic risk. It is an emerging research index rather than a routine clinical test and is read with its underlying values.

Reference ranges

What is a normal result?

Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.

This is an emerging research index with no firmly established clinical cut-off. It is best read as a trend alongside its components.

PatternInterpretation
Higher ratioHigher GGT and/or lower HDL; studied as higher cardiometabolic risk
Lower ratioMore favourable liver and lipid profile

Thresholds are not standardised. Source: GGT/HDL ratio and metabolic risk research.

Ranges are guidance and vary by lab and assay, aligned with DGKL practice. Always read your result against your own lab's reference interval.
What you'll learn

What insights will this test give you?

  • A combined signal of liver strain and protective cholesterol.
  • A pattern linked in research with insulin resistance and fatty liver.
  • Context alongside GGT, HDL, and the full lipid and liver panels.
What affects your level

What can affect this result?

What can skew the result

GGT rises with alcohol, some medicines, and fatty liver, and HDL changes with diet, alcohol, exercise, and medicines. Recent drinking can raise GGT and distort the ratio.

Best interpreted with

Best read with its components, GGT and HDL cholesterol, plus the full lipid panel and markers of glucose and insulin.

How testing works

How is this tested?

Sample
Calculated
Blood needed
Not applicable (calculated)
Method
Calculated ratio
Best timing
Same as its component tests
FAQ

Common questions

What does a high or low result mean? A higher ratio suggests more liver enzyme activity relative to HDL and may signal metabolic or liver stress. A lower ratio often aligns with a more favorable profile, but context matters.

Do I need to fast? Fasting is not required for this ratio. If your clinician requests fasting for a full lipid panel, follow that guidance.

What can affect my result? Recent alcohol, hard workouts, illness, smoking, and medicines like statins, fibrates, niacin, or antiepileptics can change values.

How often should I test? Many people recheck in 3 to 6 months when monitoring lifestyle changes or after medication adjustments. Your clinician may suggest a different interval.

How long do results take? Results are usually ready in about 7 days.

What should I discuss with my clinician? Review your alcohol use, medications, and diet, and consider a full lipid panel and liver tests to put the ratio in context.

On this page
Why testReference rangesWhat you'll learnWhat affects itHow testing worksSourcesFAQ
✦ Privately insured? German PKV usually reimburses.

Stop guessing. See this with Aniva.

One annual membership, 100+ biomarkers, every result explained in plain language with a personalized action plan and concierge guidance.

Get Started
0.55 € a day · cancel anytime · results in ~7 days

Your future self is waiting

Start building the healthiest decade of your life.

Get Started