Medpage Today, a medical newsletter, reported late last month that Dr. Eisner found that some sodas contain relatively high amounts of the alkalis citrate and malate, which help counter the formation of kidney stones. Fruit-flavored sodas had the most alkalis, with Diet Sunkist and Diet 7 Up ranking the highest, while cola flavored beverages had the least.
“This study suggests that people with stone disease who do not drink soda may benefit from moderate consumption,” said AUA spokesperson Anthony Y Smith.
Sugar-sweetened beverages may also offer the same benefits since they contain the same alkalis. But, Dr Eisner said, the study focused on diet sodas “because we wanted to be able to recommend something that was healthier for our patients.”