I went to HFD. I see the TOI choc brand you are looking for but according to the package it is only 44% Fe(Iron). I am assuming that is the whole bar and not each indivdual squares. But the squares is 7 0z. Although you are saying that the TOI candy you purchased was 140% Fe per square, which I see as suspicious, because that would make the 7 oz package would have more Fe in it than an Iron that press clothes.
. Although you were only eating a square a day.
You would be better off taking the Fe supplement. RDA for Fe is roughly 325mg a day. You can purchase Fe tablets at a health for store, it does not have to be purchase by prescription. The supplement cost about the same as the candy bar. If you have a Vitamin World in your city, that is a good place to start.
Perhaps the 140% may have been disallowed or discontinued b/c it had too much Fe in it. Thereby causing an Fe toxicity in some people
If you want the TOI ABC bar, I will surely send them too you.