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Stage-by-stage water intake guidance for kidney disease. Updated 2026-08.
Stage-by-stage water intake guidance for kidney disease
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For education and screening only — not a substitute for professional medical assessment. Results should be interpreted by your healthcare provider.
No routine fluid restriction at these stages — staying well hydrated protects the kidneys (aim ~1.5-2 L/day as your body signals). Restrict only if your doctor set a limit for edema, hyponatremia, or heart failure.
There is no set number — drink to thirst, watch for leg swelling or weight gain, and follow any limit your nephrologist has given you. Sodium restriction is the real thirst controller.
Typical HD allowance: about 500-750 mL/day plus your urine output (anuric patients ≈ 1 L/day total). Track interdialytic weight gain (target < 3-5% of body weight) — excess fluid is the top cause of HD complications.
PD's continuous ultrafiltration allows roughly 1,500-2,000 mL/day for many patients. Limit sodium (not just water) to control thirst and avoid fluid overload; follow your team's target.
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Learn moreThis content is a general reference, not medical advice, a diagnosis, or a treatment plan. Do not change your diet, fluids, medicines, or dialysis plan without your nephrologist or renal dietitian. Individual recommendations depend on your labs, medications, conditions, and care plan.