Fluid Intake in Kidney Disease
How much to drink when the kidneys are failing, and how to manage thirst.
Last updated: 2026-09-24
Failing kidneys cannot remove excess fluid, which builds up as swelling and breathlessness. A daily fluid limit may be set.
Managing thirst
- Suck on ice chips (counted in the limit)
- Limit salt, which increases thirst
- Rinse the mouth without swallowing
Frequently asked questions
Does drinking more water help kidney disease?
In early CKD, staying hydrated helps; in advanced disease on dialysis, fluid is usually restricted.