A member asked:

I chugged green tea this morning on empty stomach (2cups steeped for 15min) & about 20min later it made me vomit. read online something about tannins?

2 doctors weighed in across 2 answers
Dr. Randy Baker answered

Specializes in Holistic Medicine

Yep,probably tannins: Yes, green tea has tannins which can cause nausea, esp. on an empty stomach and esp. if you chug it and esp. if you steep it a long time. if you had sipped it more slowly you may not have vomited. See http://www.nichetopics.info/green-tea-side-effects-nausea-vomiting.html But there are many proven benefits as well: https://www.umm.edu/health/medical/altmed/herb/green-tea

Answered 3/3/2018

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Dr. Richard Zimon answered

Specializes in Internal Medicine

Green tea: is TEA...Tea contains TANNIN which can be a gastric irritant...In normal quantities and taken slowly it is completely harmless ( BTW some consider it a "Health Drink" but evidence is meager) Hope this helps Dr Z

Answered 3/4/2018

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Related Questions

A member asked:

Could it be okay to drink green tea with empty stomach?

A doctor has provided 1 answer