“Increase fluid intake to achieve a daily urine output > 2 L. Increasing fluid intake decreases the recurrence of stones by at least 50%.
Reducing soft drink intake may also help but this seems to be limited to those who drink colas, which are acidified by phosphoric acid. Soft drinks acidified with citric acid, such as fruit-flavored drinks, do not appear to have the same effect. There is little evidence that dietary changes help significantly.
If a patient’s fluid increase is not sufficient, treatment with a thiazide diuretic, citrate, or allopurinol is recommended.” ABFM
