I know someone who was diagnosed with too much Iron, I never heard of this. But she said it is a dangerous thing to have. So be careful and talk to a Doctor before doing this on your own. She has to have blood removed a couple of times a year to mitigate this. Plus avoid some foods.
https://en.wikipedia.org/wiki/Iron_overload
>People of Northern European descent, including Celtic (Irish, Scottish, Welsh, Cornish, Breton etc.), English, and Scandinavian origin[26] have a particularly high incidence