OrgansU/l
ALT / GGT (liver)
Optimal
ALT < 25 (women) / < 33 (men); GGT < 30
Why
Fatty liver (MASLD) affects a third of adults silently; GGT independently predicts cardiovascular disease and mortality.
How often
Yearly.
What moves it
Weight loss (7–10% already reverses fatty liver), zero alcohol, less fructose, coffee (!), exercise.
Last reviewed: 6 September 2026
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