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eGFR

Kidney Unit: mL/min/1.73m²

Estimated kidney filtration rate

Also known as: Estimated Glomerular Filtration Rate,GFR Estimated,Estimated GFR,GFR

Reference Ranges

Clinical Reference 60.0 – 120.0 mL/min/1.73m²
Optimal Range 90.0 – 120.0 mL/min/1.73m²
Critical Range < 15.0 mL/min/1.73m²

>60 generally adequate; <60 = CKD

Related Conditions

Kidney Disease Low

Food & Lifestyle Recommendations

🍎 Food Moderate protein intake, limit sodium, and stay well-hydrated; avoid NSAIDs NSAIDs reduce kidney blood flow and can worsen kidney function
🍎 Food Limit sodium to under 2,300mg/day — high sodium accelerates kidney decline High sodium intake increases glomerular pressure and accelerates eGFR decline
🍎 Food Choose plant-based proteins over excessive animal protein Plant proteins produce less acid and nitrogenous waste, reducing kidney workload
🍎 Food Limit phosphorus-rich processed foods and colas Excess phosphorus accelerates vascular calcification and kidney damage
🏃 Exercise Regular moderate exercise supports cardiovascular and kidney health Exercise improves blood pressure and insulin sensitivity, both protective for kidneys
💡 Other Avoid nephrotoxic medications (NSAIDs, certain antibiotics) and discuss all medications with your doctor NSAIDs are a leading cause of drug-induced kidney injury

Evidence-Backed Supplements

When Low

  • Omega 3 Tier A May Increase

    Moderate evidence; omega-3 fatty acids may slow eGFR decline in CKD. Meta-analyses show modest protective effect.

    Fish oil (EPA+DHA) 2000–4000 mg EPA+DHA/day With meals
    PMID 30019766 PMID 32114706 PMID 30480773
  • Vitamin D Tier A May Increase

    Moderate evidence; vitamin D deficiency is common in CKD and associated with faster eGFR decline. Supplementation may slow progression.

    Vitamin D3 (cholecalciferol) 2000–5000 IU/day Morning
    PMID 19370554 PMID 24414552 PMID 24729336
  • Curcumin Tier A May Increase AYURVEDA

    Limited evidence; curcumin has renoprotective anti-inflammatory and antioxidant properties. Animal studies show eGFR preservation.

    Curcumin with piperine or phytosome 500–1000 mg/day With meals
    PMID 34017975 PMID 31423805 PMID 38542668

Questions to Ask Your Doctor

  • What stage of kidney disease does my eGFR correspond to? Stage 3a = 45-59; Stage 3b = 30-44; Stage 4 = 15-29; Stage 5 = <15
  • What stage of kidney disease does my eGFR indicate, and what can I do to protect my kidneys? eGFR below 60 for 3+ months indicates CKD. Blood pressure and blood sugar control are critical.

Upload your blood test to see how your eGFR compares to reference and optimal ranges.

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