Fasting insulin
Reads: Fasting insulin
You want it low: low fasting insulin marks an insulin-sensitive, metabolically healthy state.
What this marker reads
Fasting insulin — a sensitive marker of insulin resistance; chronically high levels signal metabolic strain.
No body publishes a range for this marker
No professional body publishes a fasting-insulin reference interval, and the reason is itself published: insulin immunoassays are not standardised. Measured against isotope-dilution mass spectrometry, assay deviation ran from −298.2 to +302.6 pmol/L. A single number here would be true only of one analyser.
Your laboratory reads your result against its own assay, and this page does not do that for it. What is above is what a named body published and for whom; the machinery this marker reads is set out on its pathway page, and the formulas witnessed on it are below.
The machinery behind it
What raises this marker and what it goes on to move — each edge carried with its own study — is set out in full on its pathway page: Fasting insulin →
Formulas that modulate it
Each formula page names this pathway and carries the study behind its claim.
Build a combo from your panel
Open the bloodwork builder and select every marker your lab flagged — it covers the most machinery with the fewest formulas.