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Specific Gravity

Urine_electrolyte Unit: ratio Urine test

Simple measure of urine concentration

Also known as: Urine SG,USG

Reference Ranges

Clinical Reference 1.005 – 1.03 ratio
Optimal Range 1.01 – 1.025 ratio

Correlates with osmolality; affected by substances

Related Conditions

Dehydration High
Diabetes Insipidus Low

Food & Lifestyle Recommendations

🍎 Food Drink more water — your urine is too concentrated Urine SG >1.025 indicates dehydration; aim for pale yellow urine
🍎 Food If you're drinking excessive water, moderate intake; if not, see a doctor for diabetes insipidus evaluation Persistent dilute urine despite dehydration warrants medical evaluation
🍎 Food Assess hydration status; reduce excess fluids if symptomatic Tracks with osmolality

Evidence-Backed Supplements

When Low

Questions to Ask Your Doctor

  • Is my high specific gravity just from dehydration, or could it indicate a kidney problem? High SG usually means dehydration; persistent elevation despite hydration warrants kidney evaluation.
  • Could my low specific gravity indicate diabetes insipidus? Very dilute urine (SG <1.005) despite dehydration suggests diabetes insipidus; water deprivation test needed.

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