Liver
ALT (Alanine Aminotransferase)
Unit: U/LID: M021
What This Test Measures
Liver enzyme; marker of liver cell damage
Conventional vs. Functional Optimal Range
Conventional "Normal"
7-56 U/LYour doctor says you're "fine" anywhere in this range
Functional Optimal
10-26 (men), 10-19 (women) U/LThis is where you actually feel great
The gap between these ranges is why you feel terrible with "normal" labs. Conventional medicine waits for disease. Functional medicine optimizes for health.
Gabriel's Take
ALT >30 flags fatty liver even if "normal" by conventional standards (up to 56). Gabriel's optimal band: 10-26 for men, 10-19 for women. Elevated ALT = liver inflammation, often from insulin resistance, obesity, or alcohol. Gabriel flags it early so you and your clinician can act before it progresses.
When This Test Is High
Fatty liver, hepatitis, liver disease, medication toxicity
When This Test Is Low
Usually not clinically significant
Related Conditions
Fatty liver (NAFLD), hepatitis, cirrhosis
Recommended Follow-Up
If elevated, check AST, GGT, ultrasound liver; rule out alcohol, medications, obesity