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Iced Tea Puts People At Risk Of Kidney Stones, Physician Warns

July 20, 2010: 10:37 AM EST
A urologist at Loyola University (Illinois) warns that drinking large amounts of iced tea puts people at risk of kidney stone formation, a common, very painful urinary tract disorder that affects 10 percent of Americans. The main reason is that iced tea contains high concentrations of oxalates, chemicals that encourage kidney stone formation. Hot tea also contains oxalates, but people are less likely to drink large amounts of it. The summer is a particularly risky time, because people often drink iced tea to counter the dehydration caused by sweating. Men face quadruple the risk of developing kidney stones, especially once they reach their 40s. “For many people, iced tea is potentially one of the worst things they can drink,” said one scientist.
Dr. John Milner, " Iced Tea May Raise Your Risk of Painful Kidney Stones, Urologist Warns", News release, Loyola University, July 20, 2010, © Loyola University
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