People who drink lots of sugar-sweetened drinks may be putting themselves at a heightened risk for kidney disease, a new study suggests.
The study of more than 3,000 black men and women in Mississippi found that those who consumed the most soda, sweetened fruit drinks and water had a 61 percent increased risk of developing chronic kidney disease.
That water was included in the increased risk surprised the researchers. It's possible, however, that participants reported drinking a variety of types of water, including flavored and sweetened water. Unfortunately, that information was not included in the Jackson Heart Study, which was used for the project.
Specifically, the researchers looked at beverage consumption as reported in a questionnaire given at the start of the study in 2000 to 2004. Participants were followed from 2009 to 2013.
"There is a lack of comprehensive information on the health implications of the wide range of beverage options that are available in the food supply," said lead study author Casey Rebholz.
Rebholz is an epidemiologist at the Johns Hopkins Bloomberg School of Public Health in Baltimore.
"In particular, there is limited information on which types of beverages and patterns of beverages are associated with kidney disease risk in particular," she added.
And while the study found an association between sugary drink consumption and kidney disease, it couldn't prove a cause-and-effect relationship.
The study findings were published online Thursday in the Clinical Journal of the American Society of Nephrology.
In an accompanying journal editorial, Dr. Holly Kramer and David Shoham of Loyola University in Chicago said the findings have public health implications.
Although a few U.S. cities have reduced consumption of sugar-sweetened beverages by imposing taxes on them, others have resisted these efforts, the editorial noted.
"This cultural resistance to reducing sugar-sweetened beverage consumption can be compared to the cultural resistance to smoking cessation during the 1960s after the surgeon general report was released. During the 1960s, tobacco use was viewed as a social choice and not a medical or social public health problem," Kramer and Shoham wrote.
In another editorial, a kidney disease patient, Duane Sunwold, said he changed his eating and drinking habits to put his disease in remission. He's a chef who offers recommendations to other kidney disease patients who are seeking to cut back on sugar-sweetened drinks.
More information To learn more about kidney disease, visit the National Kidney Foundation.
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