What vitamins/supplements are you taking?

No it is not dangerous if you take the prescribed amount. For the bariatric iron I take it is 30 mg daily. Do not take it within 2 hours before or after Calcium. They bind and then neither ends up being absorbed well. I take all supplements except iron in the am. Iron after lunch, then all other vits again after dinner. I do not take my iron withVit c. Not sure, maybe the iron is enhanced with c in the one I take. I have not heard of this .. will have to look into it.
Hope this helps!