Magno

Metabolic

Insulin on TRT

What the number means, why it moves on a protocol, and how it sits with related markers.

Updated 2026-11-08 · Part of the Magno guides

What it is

Fasting insulin shows how hard the pancreas is working to keep glucose normal. It rises years before glucose does, which makes it the early warning.

The range

How to read the lab range

Labs accept up to about 25 µIU/mL; lower figures, under 8 or so, are commonly quoted as better. With glucose it gives HOMA-IR, the insulin resistance index.

Why it moves on a protocol

How Magno reads it

Magno keeps every test on one line, against your lab's range, with the change since last time. Pro explains it in plain words. Get Magno for iPhone.

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Drop your lab PDF or a photo and get every marker explained in plain words. Free, no account, your file never leaves your browser. Track it in the iPhone app to see the change since your last test.

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Questions people ask

Normal glucose but high insulin, what does that mean?

Often early insulin resistance: the pancreas is working harder to hold glucose normal. It is a good one to raise with your doctor early.

Related markers

Not medical advice

This explains what the number is and why it moves. It is not medical advice; decisions belong to you and your clinician.