It’s a popular belief that tea is dehydrating because
it has caffeine, but the level of caffeine you get from
drinking moderate amounts of tea, even strong tea,
doesn’t dehydrate you. Tea is actually 99.5 percent
water and counts towards your daily fluid intake
Myth
Drinking tea causes dehydration
Fact
Topic
Food & Nutrition
Label
Myth
URL
https://www.southwesthealthline.ca/healthlibrary_docs/nutritionmythsmarch2012.pdf