ALT
ALT (alanine aminotransferase) is an enzyme found mainly in the liver. When liver cells are stressed or damaged, ALT leaks into the blood, which makes it the most liver-specific of the routine liver tests.
Your reading
This app uses 7–56 U/L. Mildly raised ALT is common and most often linked to fatty liver, alcohol or medication. A hard workout can also raise it for a few days, since muscles contain some ALT too.
What may help
- —Drinking less alcohol
- —Losing excess weight and cutting back on sugar, the main drivers of fatty liver
- —Avoiding hard training for 2–3 days before the test
When to talk to a doctor
If ALT stays above the range on repeat testing, or is several times the upper limit.
Common questions
What is ALT?
ALT (alanine aminotransferase) is an enzyme found mainly in the liver. When liver cells are stressed or damaged, ALT leaks into the blood, which makes it the most liver-specific of the routine liver tests.
What is a normal ALT level?
Daygo uses 7–56 U/L as the reference range. This app uses 7–56 U/L. Mildly raised ALT is common and most often linked to fatty liver, alcohol or medication. A hard workout can also raise it for a few days, since muscles contain some ALT too.
How can I improve my ALT?
Drinking less alcohol. Losing excess weight and cutting back on sugar, the main drivers of fatty liver. Avoiding hard training for 2–3 days before the test.
When should I see a doctor about ALT?
If ALT stays above the range on repeat testing, or is several times the upper limit.
Source: MedlinePlus (NIH). Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.