HOMA‑IR formula and fasting insulin targets

- Practitioners in the feed are recommending HOMA‑IR to quantify insulin resistance using the formula fasting glucose (mg/dL) × fasting insulin (μU/mL) ÷ 405. - Optimal biomarker targets cited include fasting insulin around 2–5 μU/mL and an HbA1c under 5.4% to detect metabolic risk before glucose rises. - These markers help spot insulin resistance decades before hyperglycemia and can guide lifestyle prescriptions like Zone‑2 training and nutrition changes. (x.com 1) (x.com 2) (x.com 3)