Is it possible to have a high insulin but normal blood sugar levels?

Can you have normal blood sugar levels but still have insulin resistance?

• Hi. I had a 2 hour glucose tolerance test done where my blood was taken before I drank the liquid, and then once 2 hours after. My blood sugar levels came back normal, but they didn't take my insulin levels. I heard that you can still have normal blood sugar levels if you're insulin resistance (but your body just makes more insulin than normal?) I asked my doctor about this, but he says checking my insulin levels isn't necessary at all. So, do I need to have my insulin levels checked as well to rule insulin resistance out?

• Answer:

  The test for insulin production is called c-peptide. If you had insulin resistance and normal blood sugar, you still would not be a diabetic, and you would not need any treatment. All a c-peptide test would show for a person who can pass a glucose tolerance test is a high number, which would be good. If your blood glucose is good after a glucose tolerance test, don't worry about it.