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 low ALT:

Low ALT levels are associated with low muscle mass (e.g., elderly, frail), Vitamin B6 Deficiency, Chronic Kidney Disease, CVD and cancer mortality in the elderly.
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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.