🥤 The Best & Worst Drinks for Kidney Stone Patients

**Water is king:** Plain water is the single best drink for kidney stone prevention. Aim for enough to produce 2-2.5 liters of urine daily — typically 2.5-3 liters of fluid intake. If your urine looks dark yellow, drink more. Pale yellow = well hydrated.

**Citrus juices help:** Lemon juice and lime juice provide citrate, which binds calcium in urine and prevents crystal formation. Add fresh lemon to water, or drink diluted lemon juice. Orange juice also provides citrate, but watch the sugar content in commercial versions.

**Coffee and tea (moderate is fine):** Coffee has very low oxalate and may actually reduce stone risk in some studies. Black tea has more oxalate but is fine at 1-2 cups daily. Green tea is lower in oxalate than black tea. Herbal teas vary — check individual varieties.

**What to limit:** Sugar-sweetened sodas (linked to increased stone risk), grapefruit juice (some studies show a connection), and excessive alcohol (dehydrating effect). Sports drinks add unnecessary sodium and sugar for most people — water works better.

**The sugar connection:** Sugary drinks (soda, sweet tea, fruit punch) don't just add empty calories. Fructose, the sugar in many sweetened drinks, increases uric acid production and can raise urinary calcium excretion. Both effects promote stone formation. Diet sodas don't carry the same fructose risk, but water is still the better choice for hydration.

**Timing matters:** Spreading fluid intake throughout the day is more effective than drinking large amounts at once. Drink a glass of water before bed and first thing in the morning — urine is most concentrated overnight. A glass of water with each meal plus one between meals is a simple rhythm.