flax seed will not affect how birth control pills work. but there are some supplements that should be avoided by women who take birth control pills. st. john's wort commonly taken for mood and energy can actually lower the amount of hormones you get from your pills making them less effective… which could lead to an unexpected pregnancy. it should be avoided. before taking any supplements you should always check with your pharmacist to make sure they do not interact with your prescription medications.
do any supplements like cold-milled golden flax seed affect the effectiveness of birth control pills?