ASAT / ALAT ratio
Stomach and gut healthThis ratio compares two liver enzymes to give insight into liver health.
Reference range
01.52
Normal
Intermediate
High
Source: Ahead Health benchmark
Reference ranges may vary between labs and assays. Always interpret results with your healthcare provider.
Why this matters
The ratio can indicate the type of liver stress. A lower ratio may point to fatty liver, while a higher ratio can suggest alcohol-related liver changes or more advanced liver problems. Monitoring it helps guide lifestyle or treatment decisions to protect liver health.
How this connects to other biomarkers
- An ASAT/ALAT ratio > 2 with elevated transaminases is classically associated with alcohol-related liver disease, while a ratio < 1 suggests viral hepatitis or non-alcoholic fatty liver disease (NAFLD/MASLD).
- In established cirrhosis from any cause, the ratio often rises above 1.5 due to disproportionate Aspartat-Aminotransferase (ASAT) elevation.
- A ratio > 1 with normal or only mildly elevated Alanine Aminotransferase (ALAT) and elevated Total Creatine Kinase (CK) suggests muscle (rather than liver) is the source of the AST.
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