Insulin resistance can raise insulin while glucose stays normal for years. Routine glucose tests may miss this early change.
What fasting insulin shows
High fasting insulin with normal glucose may indicate extra pancreatic work. Ranges vary; many clinicians note levels above 10 to 12 µIU/mL.
HOMA-IR combines insulin and glucose. A high triglyceride-to-HDL ratio is another insulin-resistance clue.
Signs that make it worth asking
Clues include post-meal sleepiness or fog, waist gain, dark velvety neck or underarm patches, PCOS, fatty liver, or family history of diabetes.
What to do with the result
Strength training, protein and vegetables before carbs, fewer sugary drinks, post-meal walks and better sleep can help. Retest after three months.
Education, not personal medical advice. Consult a qualified clinician about diagnosis, treatment and your results.