Don’t want kidney stones? Drink water

A glass of water is not enough to prevent kidney stones, say doctors. We need to drink enough to produce two litres of urine to avoid getting the stones. - Filepic

People who have had kidney stones should drink enough to produce two litres of urine per day to prevent more from forming, says doctors.

If drinking more fluids doesn’t work, patients can try “water pills” (known as diuretics) or other drugs to reduce stone formation. But both of these recommendations are weak, since the evidence for them is moderate to low quality, say the authors of the new kidney stones prevention guidelines.