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pH (urine)
Urine acidity; reflects diet and metabolic state
Also known as: Urine pH
Reference Ranges
Clinical Reference
4.5 – 8.0
Optimal Range
5.5 – 7.0
Affected by diet, medications, and acid-base status
Related Conditions
Urinary Tract Infection
High
Metabolic Acidosis
Low
Food & Lifestyle Recommendations
🍎 Food
Increase intake of alkaline-forming foods: vegetables, fruits, legumes, nuts
Plant-based diets produce more alkaline urine; animal protein produces acidic urine
🍎 Food
If not from diet, alkaline urine with UTI symptoms may indicate a specific type of infection
Proteus and Klebsiella bacteria produce urease, making urine alkaline
🍎 Food
Eat more fruits and vegetables; limit excess animal protein to alkalinize urine
Dietary PRAL affects urine pH
🍎 Food
Adequate protein and fluid intake; treat any underlying UTI
UTIs often raise pH
Evidence-Backed Supplements
When High
-
Cranberry may acidify urine and reduce UTI bacteria
Cranberry extract 500 mg 2x/day Any
When Low
-
Potassium citrate raises urinary pH
Potassium citrate 20 mEq/day (medical guidance) With meals
Questions to Ask Your Doctor
- Could my acidic urine be contributing to kidney stone formation? Persistent acidic urine promotes uric acid and cystine stones; alkalinization may be needed.
- Is my alkaline urine from diet, a UTI, or a kidney problem? Alkaline urine with UTI suggests Proteus infection (struvite stones); diet can also affect pH.
- Could persistently acidic urine raise my kidney stone risk? Low pH favors uric acid stones
Upload your blood test to see how your pH (urine) compares to reference and optimal ranges.
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