C-peptide test

A C-peptide test measures the level of C-peptide in your blood, which is produced when your body makes insulin. Since insulin and C-peptide are released together, testing C-peptide helps determine how much insulin your pancreas is producing. This is useful for diagnosing and managing diabetes, as it shows whether your body is making insulin naturally or relying on medications. Higher or lower levels can indicate different conditions, such as type 1 or type 2 diabetes, or insulin production issues. The test is simple and provides valuable information about your body’s insulin activity.