Insulin Resistance Formula

One of the simplest ways to get an early look at insulin resistance is by calculating your HOMA-IR using your fasting glucose and fasting insulin—two markers that are often already included on routine labs. This quick formula helps estimate how hard your body is working to keep blood sugar stable. While there is no single universal cutoff, once the number reaches around 1.5, it’s a point where we start watching more closely for early signs of insulin resistance, blood sugar dysregulation, and stubborn weight changes, even if glucose still appears “normal.”