HOMA-index

HOMA-IR identifies insulin resistance years before diabetes develops, when lifestyle interventions are most effective. Elevated values indicate cells are becoming resistant to insulin's effects, forcing the pancreas to produce more insulin to maintain normal glucose levels. This early metabolic dysfunction underlies many conditions including type 2 diabetes, metabolic syndrome, PCOS, fatty liver disease, and cardiovascular disease. By detecting insulin resistance early, HOMA-IR enables targeted interventions through weight loss, exercise, dietary changes, and stress management to restore insulin sensitivity and prevent progression to diabetes.

Most adults benefit from checking HOMA-IR yearly as part of a metabolic panel. After a sustained change in diet, activity, or body composition, retest at 8 to 12 weeks.

At baseline / for screening: Once every 12 months from age 30 as part of a cardiometabolic check. More frequently, every 3 to 6 months, if you have pre-diabetes, type 2 diabetes, polycystic ovary syndrome, or a family history of any of these.

When monitoring an intervention or change: Retest 8 to 12 weeks after a sustained lifestyle change, such as reducing refined carbs and added sugars, increasing physical activity, meaningful weight loss, or improving sleep quality. The same window applies after starting or adjusting glucose-lowering medication (metformin, GLP-1 receptor agonist, SGLT2 inhibitor). If a result was above target, reconfirm sooner once you've begun addressing the most likely driver.