Stone Prevention Basics

  • To help prevent any type of kidney stone you should drink more fluid. You should aim to drink at least three liters every 24 hours, or enough to make your urine clear rather than a yellow colour. Talk to your doctor for more advice on this.

  • It used to be thought that reducing the amount of calcium in your diet would lower the risk of developing calcium stones. However, research has shown that a diet containing normal or even increased amounts of calcium containing food (such as dairy products or green leafed vegetables) may be more helpful.

  • If you get calcium oxalate stones, cut down on foods that have high levels of oxalate - chocolate, tea, rhubarb, cooked spinach and asparagus.

  • If you get uric acid stones you should eat less meat, fish and poultry, and your doctor may prescribe medicine to help reduce the level of uric acid in your urine.

  • You should discuss dietary changes with your doctor as they are not appropriate for everyone.

  • If you get cystine stones, your doctor may prescribe medicines to reduce the chance of the stones forming.

  • If you develop struvite or "infection" stones your urine must be kept free of the bacteria that are causing the infection. This may mean taking long-term antibiotics.