Kidney stones: 6 foods to avoid
ET Online
Aug 10, 2025
Spinach And Other High‑Oxalate Greens
Spinach, Swiss chard, and rhubarb are extremely high in oxalates that bind calcium to form common stones; limit portions or pair with calcium at meals.
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Nuts And Peanuts (Portion Control)
Almonds, cashews, peanuts, and some seeds carry high oxalate loads; frequent snacking can raise urinary oxalate—keep portions small and balance with calcium-rich foods.
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Beets And Rhubarb
Beets and rhubarb are among the highest-oxalate plant foods; reducing or avoiding them helps if prone to calcium oxalate stones.
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Colas And Sugary Sodas
Colas acidified with phosphoric acid and sugar-sweetened sodas are linked to stone-promoting urine changes and higher stone risk; choose water or citrus drinks instead.
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High‑Sodium Processed Foods
Salt raises urinary calcium, increasing stone formation; cut canned soups, packaged snacks, fast food, and salty condiments to lower risk.
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Excess Animal Protein
Large amounts of meat, poultry, eggs, and fish increase uric acid and lower protective citrate; moderate intake supports stone prevention.
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