← All Biomarkers

Bilirubin (urine)

Urine_liver Unit: Urine test

Bilirubin in urine indicates liver/biliary obstruction

Also known as: Urine Bilirubin

Reference Ranges

Clinical Reference

Normally absent; presence = conjugated hyperbilirubinemia

Related Conditions

Liver Disease High

Food & Lifestyle Recommendations

🍎 Food Avoid alcohol — it worsens liver damage and increases bilirubin Alcohol is hepatotoxic and the most common cause of elevated liver enzymes and bilirubin
🍎 Food Coffee (2-3 cups/day) supports liver function and may reduce bilirubin Meta-analyses show coffee reduces liver disease progression and improves liver enzymes

Evidence-Backed Supplements

When High

  • Milk Thistle Tier A May Decrease

    Moderate evidence; silymarin supports liver function and may reduce conjugated bilirubin in hepatobiliary disease.

    Silymarin extract (70–80%) 140–210 mg silymarin 2–3x/day With meals
    PMID 40552569 PMID 37816677 PMID 40738719
  • Nac Tier A May Decrease

    Limited evidence; NAC supports glutathione production and hepatocyte protection.

    N-Acetyl Cysteine 600–1200 mg/day Morning or divided doses
    PMID 30746681 PMID 39349461 PMID 33294991

Questions to Ask Your Doctor

  • Does bilirubin in my urine indicate liver disease or bile duct obstruction? Urine bilirubin indicates conjugated hyperbilirubinemia — liver disease or biliary obstruction. Needs urgent evaluation.

Upload your blood test to see how your Bilirubin (urine) compares to reference and optimal ranges.

Upload Blood Test