Up to 10 small cups of green tea a day is fine but studies show that more than that can be harmful. This is important to note if you're taking green-tea-based supplements because they "can contain up to 50 times as much polyphenol as a single cup of tea." Polyphenols are helpful in small doses but in large doses can cause liver and kidney damage. Everything in moderation, as they say.

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I'm always frustrated by the tendency of Americans to turn every good thing into a pill.

And if those 10 "small" cups are American-sized cups... that's a seriously large amount of tea... if that's 12 ounces, it would be roughly 3.5 liters a day?

Ya i guess drink them in moderate will do. i drink around 5 cups of them and 5 cups of water. my fav green tea would be dragonwell green tea.

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