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A 28-year-old female asked:

I've noticed sometimes when i drink tea, esp. if it's strong or has been brewed too long, i get an upset stomach. what in tea causes that? caffeine?

1 doctor answer1 doctor weighed in
Dr. Geoffrey Rutledge
Internal Medicine 41 years experience
Gastric irritant: Many chemicals in tea can stimulate or irritate the lining of your stomach, including caffeine. other elements such as tannic acid also can be irritating and cause nausea or cramps in susceptible people, or if you already have stomach irritation (gastritis), tea can make it worse. Try taking a liquid antacid if it occurs again.

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Last updated Mar 22, 2020

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