i'd like to see results of a real study... the only anecdotal evidence i have is a aquaculture guy with lots of iron in his well water (water was "rusty) - lot's of aeration and flow clears it to some extent..
i didn't think chelated iron was magnetic, but this excerpt suggests otherwise (but temp is important)
http://www.tandfonline.com/doi/abs/10.1 ... 36#preview
i've found quite a bit of references that chelated iron is used in mri's, but that could be for contrast.. (you're not supposed to have anything metallic on, in an mri)
i dunno..