Anemia..

Mary • 20 years old, engaged, mommy to a babygirl born on July 22nd, fur momma to my Yorkie-Poo, Zelda :)
My doctor called and told me that I am slightly anemic, and needed to start taking iron supplements. I bought them but, I am afraid to take them because I heard that they can mess up your teeth? I'm not sure how exactly but, I'm nervous about taking them. Does anyone have some insight on this?