Saturday, June 8, 2013

Sugar-Sweetened Beverages Associated With Increased Kidney Stone Risk


Kidney stones may form when the normal balance of water, salts, minerals, and other substances found in urine changes.

Thus patients with kidney stones are often advised to drink more fluids as a way to prevent future stone formation.

Drink More Fluids - Not Softdrinks!

Now, new research from Brigham and Women's Hospital finds that some beverages may be more helpful than others when it comes to preventing recurrent kidney stones.

"Our study found that the relation between fluid intake and kidney stones may be dependent on the type of beverage consumed," explained Gary Curhan, MD, ScD, a physician in the Channing Division of Network Medicine at BWH and senior author of this study. "We found that higher consumption of sugar-sweetened drinks was associated with a higher incidence of kidney stones."

The researchers analyzed data from three ongoing cohorts, the Health Professionals Follow-Up Study (HPFS), and both the Nurses' Health Study I (NHS I) and II (NHS II). The total analysis involved 194,095 participants over a median follow-up of more than 8 years. Participants in all the three cohorts had been asked to complete biennial questionnaires with information on medical history, lifestyle, and medication. Questions on diet were updated every four years.

The researchers found that participants who consumed one or more sugar-sweetened cola servings per day had a 23 percent higher risk of developing kidney stones compared with those participants consuming less than one serving per week. This was true for consuming sugar-sweetened non cola as well, such as punch. They also found that some beverages, such as coffee, tea and orange juice, were associated with a lower risk of stone formation.


The above story is based on May 16, 2013 news release by Brigham and Women's Hospital

The research has been published online in the Clinical Journal of the American Society of Nephrology (CJASN):

Pietro Manuel Ferraro, Eric N. Taylor, Giovanni Gambaro, and Gary C. Curhan. Soda and Other Beverages and the Risk of Kidney Stones. Clin J Am Soc Nephrol. May 15, 2013, DOI: 10.2215/CJN.11661112

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