ALT in Serum

Also known as:

Alanine Aminotransferase

S-ALT

SGPT

ALT ranges for

Interpret your result

"Normal" lab range for ALT is between 12 and 48 IU/L for males:

According to Peter Attia, ALT should be below 25 IU/L for males:

According to OptimalDX, ALT should be between 10 and 26 IU/L:

Optimal range

Optimal range for ALT seems to be between 10 and 26 IU/L:

This isn't medical advice. Consult your healthcare provider.

This page is marked as a work-in-progress.

The optimal range is derived from a limited number of sources and is subject to change.

Your interpretation

For low

For high

Possible reasons for high ALT:

ALT is highly liver specific, but is found also in skeletal muscle, heart, kidneys and gut. Weight loss, anorexia and obesity can increase ALT levels.

Medication that can increase ALT levels: Paracetamol, NSAIDs, statins, phenytoin, allopurinol, and antibiotics, especially amoxicillin and more.
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About the site author
My personal mission is to extend human lifespan by collectively adding 1 million years to people's lives.
Zsolt Szabo
Software Engineer, Biohacker, and Consultant for Longevity Clinics.

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I am particularly interested in research on biomarkers linked to all-cause mortality or optimal reference ranges.