No: Drinking green tea 3 times a day does not change the effectiveness of birth control pills. Of course, no pills are 100% effective, so there is always a very small chance a woman could become pregnant while using birth control pills, regardless of whether she drinks tea or not. The healthier way to drink tea is without sugar or sweeteners.
Answered 9/10/2017
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3 doctors weighed in across 2 answers
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