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Does drinking 3 cups of green tea daily for a prolonged period of time decrease the effectiveness of the birth control pills? I take Yaz (drospirenone and ethinyl estradiol) for 2 years.

1 doctor weighed in
Dr Robert Kwok
Pediatrics

In brief: 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.

In brief: 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.
Dr Robert Kwok
Dr Robert Kwok
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