Higher insulin levels are associated with being insulin resistant. And when left unaddressed, insulin resistance can lead to prediabetes and eventual type 2 diabetes. Blood tests (hemoglobin A1C, fasting glucose, glucose tolerance, and a random blood sugar test) are often used to diagnose type 2 diabetes. That said, InsideTracker does not diagnose or treat diseases. It’s recommended to have a conversation with your healthcare provider about diagnoses.