What is the normal range for insulin?

Dec 30, 2021 Source: Cainiu Health
Disease description:

During my recent checkup, I found that my blood glucose level is somewhat elevated. My doctor recommended a follow-up test to measure my insulin level. Could you please tell me the normal reference range for insulin?

Doctor's answer (2)
Dr. Zhao Lianli
The reference normal fasting insulin level for adults is 3.0–24.9 pmol/mL. Typically, after detecting elevated blood glucose levels, clinicians assess insulin levels to determine the type of diabetes. Diabetes is classified into two main types: Type 1 diabetes, caused by impaired insulin secretion leading to insufficient insulin in the body; and Type 2 diabetes, resulting from decreased insulin receptor sensitivity, which reduces insulin’s effectiveness.