A member asked:

I read that taking high doses of vitamin c can affect birth control effectiveness. i am on seasonique and take vit. c supplement about 560 mg per day?

6 doctors weighed in across 2 answers

Unlikely: A study has shown that the increase in availability of estrogen in women taking a lot of vitamin c is not of any clinical significance. Vitamin c does not decrease the effectiveness of the pills, although huge doses may cause mild symptoms of excess estrogen.

Answered 10/24/2017

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Not an issue: That is a small dose of vitamin c. Why do you feel you need to take it in the first place? It has no benefits at that dose.

Answered 7/5/2013

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