Insulin Fasting

Insulin Fasting is a hormonal blood test that measures insulin levels after an overnight fast of 8–12 hours. It helps evaluate how effectively the body regulates blood glucose in the fasting state. Elevated fasting insulin levels may indicate insulin resistance, a key factor in the development of type 2 diabetes and metabolic syndrome. Low levels may be seen in pancreatic insufficiency or certain endocrine disorders. This test is often interpreted alongside fasting blood glucose, HbA1c, and postprandial insulin levels to assess metabolic health, guide lifestyle changes, and monitor treatment response in patients with diabetes or insulin resistance.