ALT (SGPT) blood test
An enzyme mostly found in the liver. Raised levels suggest liver cells are under stress.
- Typical range (adult men)
- below 40 U/L
- Panel
- Liver Function
- Also called
- Alanine aminotransferase, SGPT
Reference ranges vary between labs; use the range on your own report. Results need to be read by a doctor alongside your symptoms and other tests.
Why it’s tested
The core liver marker for anyone on medication or oral compounds that strain the liver. Heavy training can nudge it up.
What can raise it
- Liver strain, including from oral anabolic steroids
- Fatty liver
- Alcohol
- Hard training before the test
What can lower it
- Usually not a concern
Getting an accurate result
- Test in the morning, especially for hormones, which run highest early in the day.
- Skip hard training for 48 hours before: muscle damage and creatine can push this up.
- Stay hydrated, and test at the same lab and time of day each time so results compare fairly.
Compounds that affect ALT (SGPT)
Monitored with these, based on their known properties:
- Dianabol (Methandrostenolone)
- Anadrol (Oxymetholone)
- Anavar (Oxandrolone)
- Winstrol (Stanozolol)
- Turinabol (Chlorodehydromethyltestosterone)
- Halotestin (Fluoxymesterone)
- Superdrol (Methasterone)
- Testolone (RAD-140)
- S-23
- YK-11
- Methyltrienolone (Oral Tren / Metribolone)
- 1-Andro (1-Androstenediol)
Other liver function tests
Questions
What is a normal ALT (SGPT) level?
A typical adult male reference range is below 40 U/L. Ranges differ for women, by age and between labs, so compare with the range printed on your report.
What does high ALT (SGPT) mean?
Common reasons include liver strain, including from oral anabolic steroids, fatty liver, alcohol and hard training before the test. One result outside the range isn't a diagnosis: a doctor will look at it with your other markers and history.
What does low ALT (SGPT) mean?
Common reasons include usually not a concern.