Hydration matters in gout, but the common phrase “flush out uric acid” is misleading. Drinking water does not rapidly dissolve established gout crystals. See the broader evidence-based gout diet for context, and use the personal trigger guide if dehydration seems to line up with your own flares.
Why dehydration can matter
Dehydration reduces body water and can affect kidney handling and concentration of urate. Heat, illness, vomiting, diarrhea, intense activity and inadequate fluid intake can therefore coincide with higher flare risk in susceptible people.
How much water should you drink?
There is no universal gout-specific water target. Fluid needs vary with climate, body size, activity, kidney function, heart conditions and medications. Aim for normal adequate hydration unless your clinician has given you a fluid restriction.
Can extra water stop a flare?
No evidence shows that forcing large amounts of water will stop an acute gout attack. Acute flares are treated primarily with appropriate anti-inflammatory therapy.
What should you drink?
Water is a simple default. Sugar-sweetened drinks can raise gout risk, and alcohol may trigger attacks. Juice can deliver substantial sugar depending on the product and portion.
Hydration in hot climates
For readers in warm climates, including parts of Australia, the US and Kenya, heat exposure can make dehydration easier. Replace fluids sensibly, especially during illness or prolonged outdoor activity.
This article is educational and is not a substitute for medical advice, especially if you have kidney or heart disease.
Sources
Evidence checked September 2026.