Fasting Insulin Assessment is a blood test that measures the level of insulin in your body after a period of fasting. Insulin is a hormone that helps regulate blood sugar levels. This test is commonly used to evaluate insulin resistance, assess the risk of type 2 diabetes, and monitor metabolic health. It is especially useful for individuals with obesity, polycystic ovary syndrome (PCOS), prediabetes, or a family history of diabetes. Early detection of abnormal insulin levels supports timely lifestyle changes and medical management.