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HOMA-IR

Metabolic Unit: ratio

Insulin resistance index; >2.5 indicates resistance

Also known as: Homeostatic Model Assessment

Reference Ranges

Clinical Reference 0.5 – 2.0 ratio
Optimal Range 0.5 – 1.5 ratio

Calculated from glucose and insulin

Related Conditions

Diabetes High
Metabolic Syndrome High

Food & Lifestyle Recommendations

🍎 Food Time-restricted eating (e.g., 10-hour window) may improve insulin sensitivity Pilot studies show improved HOMA-IR with time-restricted eating
🍎 Food Reduce refined carbohydrates and added sugars — they drive insulin resistance High-glycemic diets increase postprandial insulin demand and promote insulin resistance
🍎 Food Increase fiber intake: aim for 25-35g/day from vegetables, legumes, whole grains High fiber intake improves insulin sensitivity by 20-30% in clinical trials
🍎 Food Include magnesium-rich foods: dark leafy greens, nuts, seeds, dark chocolate Magnesium deficiency is associated with insulin resistance; adequate intake improves HOMA-IR
🏃 Exercise High-intensity interval training (HIIT) may improve insulin sensitivity faster than moderate exercise HIIT improves HOMA-IR by 20-30% in meta-analyses
🏃 Exercise Both aerobic and resistance exercise improve insulin sensitivity within days A single bout of exercise improves insulin sensitivity for 24-72 hours post-exercise
😴 Sleep Prioritize 7-9 hours of quality sleep — poor sleep worsens insulin resistance Even one night of sleep deprivation can increase HOMA-IR by 20-30%
🧘 Stress Manage stress — cortisol promotes insulin resistance and abdominal fat storage Chronic stress elevates cortisol, which directly impairs insulin signaling

Evidence-Backed Supplements

When High

  • Berberine Tier A May Decrease WESTERN

    Strong evidence; meta-analyses show berberine significantly improves insulin sensitivity and reduces HOMA-IR, comparable to metformin.

    Berberine HCl 500 mg 2–3x/day With meals
    PMID 30466986 PMID 35623810 PMID 36805484
  • Magnesium Tier A May Decrease

    Moderate evidence; magnesium deficiency is associated with insulin resistance. Supplementation improves HOMA-IR in meta-analyses.

    Magnesium glycinate 200–300 mg elemental Mg/day Evening
    PMID 33419615 PMID 23440790 PMID 32956536
  • Chromium Tier A May Decrease

    Moderate evidence; some meta-analyses show chromium modestly improves HOMA-IR, particularly in diabetic populations.

    Chromium picolinate 200–1000 mcg/day With meals
    PMID 26825231 PMID 34611902 PMID 39863768
  • Omega 3 Tier A May Decrease

    Moderate evidence; omega-3 fatty acids may improve insulin sensitivity. Meta-analyses show modest HOMA-IR reduction.

    Fish oil (EPA+DHA) 1000–2000 mg EPA+DHA/day With meals
    PMID 30019766 PMID 32114706 PMID 30480773
  • Vitamin D Tier A May Decrease

    Moderate evidence; vitamin D deficiency is associated with insulin resistance. Supplementation may improve HOMA-IR in deficient individuals.

    Vitamin D3 (cholecalciferol) 1000–2000 IU/day Morning
    PMID 19370554 PMID 24414552 PMID 24729336
  • Alpha Lipoic Acid Tier A May Decrease

    Moderate evidence; ALA improves insulin sensitivity. Meta-analyses show modest HOMA-IR reduction in diabetic patients.

    PMID 38205823 PMID 39339645 PMID 40134249

Questions to Ask Your Doctor

  • What lifestyle changes would most effectively lower my insulin resistance? Exercise and low-glycemic diet have strongest evidence
  • Does my elevated HOMA-IR mean I'm at risk for diabetes, and what lifestyle changes should I make? High HOMA-IR indicates insulin resistance, a precursor to type 2 diabetes. Diet, exercise, and weight management are first-line.

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