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West Palm Beach, FL
A 18-year-old female asked:

Can taking too many vitamin supplements, or taking too many vitamin supplements in high quantity affect/ counteract with birth control?

1 doctor answer1 doctor weighed in
Dr. Charles Whiting
Obstetrics and Gynecology 28 years experience
Yes: Vitamins don't interfere with birth control pills; however, there are some supplements that in high doses could interfere with birth control pills. Some examples are St. John's Wort, Soy Isoflavones, and Chaste-berry. If you are on a particular herb, check it for interactions or ask you doctor. Best wishes!

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Last updated Nov 15, 2016

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