Some people with type 2 diabetes are treated with insulin. Insulin is either injected with a syringe several times per day, or delivered via an insulin pump. The goal of insulin therapy is to mimic the way the pancreas would produce and distribute its own insulin, if it were able to manufacture it. Taking insulin does not mean you have done a bad job of trying to control your blood glucose—instead it simply means that your body doesn’t produce or use enough of it on its own to cover the foods you eat.
Even if you have not been told that you have prediabetes, you could be worried about it, since 90% of the people with prediabetes are unaware that they have it. You are at higher risk if you are over 45 years old, do not get much exercise, have a family history of diabetes, or are African American, Native American, Hispanic/Latino, or Pacific Islander.