A simple rhythm: once a year when things are steady, and twelve weeks after any change worth measuring.
Jul 1, 2026
4 min read
Dr. Owen Gallagher
The honest answer: less often than most testing companies would like. Markers change at different speeds, and retesting faster than a marker can move tells you nothing beyond how noisy the assay is.
A schedule that works
For most healthy adults, one full panel a year is plenty. After you start a supplement, a medication or a hard training block, recheck the specific markers at twelve weeks: long enough to move, soon enough to act.
The exceptions
Ferritin after iron therapy, HbA1c after a metabolic change and thyroid after a borderline result each need their own timeline. Lp(a) is measured once in a lifetime.
Your report always lists which markers to recheck and when, so you’re not left guessing between appointments.
Dr. Owen Gallagher
Longevity medicine, Tinsdale
