Drinking Diet Soda May Reduce the Risk of Forming Kidney Stones
Increased alkalinity is proven to augment citraturia, a known factor for calcium stones. Malate increases the amount of alkali delivered. Researchers measured the citrate and malate content of 15 popular diet sodas. The researchers found that Diet Sunkist Orange contained the greatest amount of total alkali and Diet 7-Up had the greatest amount of citrate as alkali.
“This study by no means suggests that patients with recurrent kidney stones should trade in their water bottles for soda cans,” said
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Eisner, B; Asplin, J; Stoller, M. Citrate, malate and alkali concentrations in commonly consumed diet sodas: implications for urinary stone patients. J Urol, suppl. 2009: 181, 4, abstract 1832.
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SOURCE American Urological Association