Can Drinking Tea Dehydrate You?
Caffeinated teas act as a diuretic, making you expel water through urine; however, they also contain hydrating water. Herbal teas typically have no caffeine. Although the Food and Drug Administration recommends drinking extra water if you consume caffeine during exercise or hot weather, research shows that tea can be just as hydrating as plain water in moderate doses. Tea, coffee, juice, milk and other nonalcoholic beverages count toward your daily water intake, notes an article in "Scientific American."
How Much Is Too Much?
In a study published in "The British Journal of Nutrition" in 2011, men were given either 4 cups of black tea, 6 cups of black tea or the equivalent amounts of hot water over the course of a day on four separate days. Researchers found there was no significant difference in hydration levels after drinking tea versus water. Still, caffeine can have negative side effects such as digestive problems and anxiety when consumed in high doses. Medline Plus defines 5 cups of tea per day as a moderate consumption of caffeine and 10 cups per day as excessive.
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- Food and Drug Administration: Medicines in My Home: Caffeine and Your Body
- The British Journal of Nutrition: Black Tea Is Not Significantly Different From Water in the Maintenance of Normal Hydration in Human Subjects: Results From a Randomised Controlled Trial
- Scientific American; Fact or Fiction? You Must Drink 8 Glasses of Water Daily; Karen Bellenir
- Medline Plus: Caffeine in the Diet
Nina K. is a Los Angeles-based journalist who has been published by USAToday.com, Fitday.com, Healthy Living Magazine, Organic Authority and numerous other print and web publications. She has a philosophy degree from the University of Colorado and a journalism certificate from UCLA.