My husband & i are going to have colonoscopys & it says not to take vitamins containing iron--which vitamins contain iron?

Read labels.: To see if iron is a significant ingredient in your vitamins, read the label with the ingredients listed. That information will be found there. If the bottle is no longer available, then stop the vitamins until after your colonoscopies are done. Also, please add your age to your profile. I answered this because colonoscopies scheduled for a married couple are not done in people under 16 usually