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Sugary Soda Habit May Harm Kidneys, Study Suggests

People who drank 2 or more a day were more likely to have protein in their urine, a sign of trouble

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"There is no safe amount of soda," Agarwal said. "If you look at the recommended amounts of sugar we can safely consume every day, one can of soda exceeds the maximum level."

American Heart Association guidelines state that the recommended daily sugar intake is 9 teaspoons for adult men, 5 teaspoons for adult women and 3 teaspoons for children. A 12-ounce can of non-diet soda has about 7 teaspoons of sugar, Agarwal said.

Dr. Jaime Uribarri, a kidney specialist at the Icahn School of Medicine at Mount Sinai Medical Center in New York City, said the new findings "reaffirm an association between soda and health problems." He added that diet soda also can cause health problems.

The bottom line? "Drink water instead of soda," Uribarri said.

More information

The National Kidney Foundation has more on kidney disease.

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