Why was this study done?
To investigate the effects of two sports drinks (“G” or “P”) and whether they produce or prevent the formation of kidney stones.
What did the study find?
“P” increased citrate excretion (by 170 mg/day) and increased urine pH (by 0.31), whereas “G” did not change citrate excretion or pH. These findings suggest that “P” may help prevent the formation of kidney stones.
Effect of two sports drinks on urinary lithogenicity.
Authors: Goodman JW, Asplin JR, Goldfarb DS. Urol Res. 2009 Feb;37(1):41-6.
PubMed Citation, PMID: 19066876.