ALT

in Serum

Also known as:

Alanine Aminotransferase

S-ALT

SGPT

IU/L

µkat/L

nkat/L

Enter value to interpret your result

Optimal ALT reference ranges for longevity

According to Peter Attia, ALT should be:
- below 25 IU/L for males
- below 20 IU/L for females
According to OptimalDX, ALT should be between 10 and 26 IU/L

To see these ranges in your preferred unit, enter your lab result above.

This page is marked as a work-in-progress. Expect updates and a redesign soon.

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.

Please send me studies and feedback.

Any feedback is welcome at .

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