Heart & metabolic
Fasting Insulin
How hard the pancreas is working to hold sugar steady. It rises before glucose does. Higher results are the ones to watch. A common adult reference interval is 2–19 uIU/mL.
Typical adult range
- Reference interval
- 2–19 uIU/mL
- Often-cited tighter window
- 2–6 uIU/mL
Fasting insulin; lower reflects better sensitivity. Your own lab's printed range is the one that applies to your result.
What commonly moves it
- Insulin resistanceDrives small dense LDL, triglycerides, and inflammatory tone.
What it can affect downstream
These are commonly described physiological relationships, shared for education. They are not a diagnosis and cannot account for your medications, history, or symptoms — discuss your results with a licensed clinician.
Watching Fasting Insulin over time?
Dose Compass charts each draw, flags meaningful moves, and helps you prepare questions for your clinician.
Start tracking