AACE Insulin Resistance Diagnosis: Fasting Insulin & HOMA-IR
AACE guidance on when to order fasting insulin: levels above 15 µIU/mL suggest resistance, HOMA-IR above 2.5 is abnormal. See indications and reference ranges.
Fasting Insulin (Lab Test)
12 source-based articles maintained by the HealthRX.com Editorial Team.
12articles
3topic areas covered
Jan 15, 2025latest review
Fasting Insulin (Lab Test) library
Showing 12 of 12 clinical reviews.
Fasting Insulin and Drugs That Distort This Test
A clinical guide to fasting insulin levels, what distorts the test, which drugs raise or lower results, and how to interpret findings in the context of insulin resistance, PCOS, and metabolic disease.
Fasting Insulin At-Home and Finger-Prick Options: Normal Range, Optimal Levels, and How to Test
Compare home fasting-insulin kits and mobile blood draws, lab-specific ranges, biotin preparation, HOMA-IR calculations and appropriate follow-up.
Fasting Insulin Lab: Normal Range vs. Functional Optimal Range
Your fasting insulin may be 'normal' but not optimal. Learn the difference between standard lab ranges and functional targets, what high or low levels mean, and how to move toward metabolic health.
Fasting Insulin Longevity-Medicine Target Ranges
What fasting insulin level should you actually aim for? This guide covers the standard laboratory reference range, the tighter targets used in longevity medicine, HOMA-IR, and where the evidence for these numbers is solid versus still provisional.
Fasting Insulin Medication-Driven Changes: What Moves the Number and Why It Matters
A guide to how GLP-1 agonists, metformin, TRT, insulin sensitizers, and other drugs shift fasting insulin levels, with reference ranges, dosing context, and labs to monitor alongside.
Fasting Insulin Rate-of-Change Interpretation: Normal Range, Optimal Levels, and What Your Trend Means
How to interpret fasting insulin trends over repeated tests, why a single value is less useful than the direction of change, and what is and isn't established about optimal fasting insulin targets.
Fasting Insulin, Training, and Exercise: What the Research Actually Shows
How aerobic exercise, resistance training, and combined protocols relate to fasting insulin and insulin sensitivity, what the evidence does and does not establish, and how to think about testing around a training program.
Fasting Insulin: How Nutrition and Fasting Change Your Results
Learn how diet, meal timing, fasting protocols, and specific foods shift fasting insulin levels, what the optimal range looks like, and when elevated results signal insulin resistance or PCOS.
Fasting Insulin: How to Interpret Your Result
Learn what your fasting insulin level means, the normal range, and what high or low values signal about metabolic health. prepared by the HealthRX.com Editorial Team.
Fasting Insulin: What This Test Actually Measures
A clinical guide to fasting insulin testing, including what the test measures, normal ranges, how to interpret high or low results, and evidence-based strategies to improve insulin levels.
Fasting Insulin: Which Tests to Order Alongside for a Complete Metabolic Picture
A clinical guide to the lab tests that pair with fasting insulin, including HOMA-IR, fasting glucose, HbA1c, lipid panel, and more, to detect insulin resistance early.