BiomarkersALT (SGPT)
Liver
ALT (SGPT)
A liver enzyme that rises when liver cells are stressed
On your report it may say: SGPT, Alanine aminotransferase
ALT is an enzyme found mainly in the liver. When liver cells are stressed or damaged, ALT leaks into the blood. Fatty liver is the most common reason for a raised ALT in India.
Typical ranges · U/L
Many experts now consider healthy ALT to be lower: about 33 for men and 25 for women.
Ranges vary by lab, age and sex. The range printed on your report applies.
If it's low
Low ALT is normal.
Common causes
- Normal
If it's high
Liver cells are under stress. The cause needs to be found.
Common causes
- Fatty liver
- Alcohol
- Viral hepatitis
- Some medicines and herbal supplements
- Intense exercise before the test
What you might notice
- Often none
- Tiredness
- Discomfort under the right ribs
Testing
- Who should test
- Part of liver function tests; anyone with excess weight, diabetes or regular alcohol use.
- How to prepare
- Avoid heavy exercise and alcohol for 24–48 hours.
- When to retest
- As your doctor advises.
What can help
SYNC doesn't recommend liver supplements from liver enzymes. Abnormal results need a doctor.
Food sources
See a doctor about any raised result.
Common questions
Can supplements raise ALT?
Yes, some herbal products can stress the liver.
What is SGPT?
An older name for ALT.
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Sources
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Build My Nutrition PlanFor general education only, not medical advice. Ranges shown are typical for adults; the range printed on your lab report applies. Talk to a qualified doctor about your results.