Sodium (urine)

Urine_electrolyte Unit: mEq/L Urine test

Reflects sodium intake and renal handling

Also known as: Urine Na,UNa

Reference Ranges

Clinical Reference 40.0 – 220.0 mEq/L

Optimal Range 80.0 – 180.0 mEq/L

Varies with intake; 24hr preferred for accuracy

Hypertension High

Chronic Kidney Disease High

Adrenal Insufficiency Low

Siadh Low

Dehydration Low

🍎 Food Reduce sodium intake to <2300 mg/day; favor fresh whole foods over processed.

🍎 Food Increase potassium-rich foods (bananas, leafy greens, beans) to offset sodium.

🍎 Food If on low-sodium diet, review with your physician — excessive restriction may contribute.

💡 Other Drink water consistently through the day to support sodium clearance.

💡 Other Oral rehydration with balanced electrolytes (not plain water) if losses are high.

Magnesium Tier A May Decrease

Moderate evidence; magnesium supplementation supports blood-pressure regulation and may offset sodium-driven hypertension.

Magnesium glycinate 200–300 mg elemental Mg/day Evening

PMID 33419615 PMID 23440790 PMID 32956536
Potassium Tier A May Balance

Strong evidence; dietary potassium offsets sodium's pressor effect (DASH trials).

PMID 29907351 PMID 38519925 PMID 24869750

Electrolyte Replacement Tier B May Correct

Clinical rationale; oral rehydration with balanced electrolytes restores sodium when urinary losses are excessive.

PMID 38004153

Could my high urinary sodium reflect blood-pressure or heart issues? Urinary sodium reflects dietary intake and renal handling; elevated levels can correlate with hypertension risk.
Could my low urinary sodium indicate adrenal or ADH-related problems? Low urinary sodium can signal dehydration, SIADH, or adrenal insufficiency.

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