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Caffeine: Is it dehydrating or not? - MayoClinic.com
by Decius at 11:12 am EST, Dec 10, 2012 |
NO, coca-cola does not dehydrate you. Researchers used to believe that caffeinated drinks had a diuretic effect. This means that you would urinate more after drinking them, which could increase your risk of becoming dehydrated. Recent research shows that this is not true and that caffeine has a diuretic effect only if you consume large amounts of it — more than 500 to 600 milligrams (the equivalent of 5 to 7 cups of coffee) a day.
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