As my iron and ferritin are ok in blood, but my hair iron is too high, then it shows before you really have the problem!
Also, think about relationship with copper, as there is a link, though I forgot which. And copper is linked to zinc, and meat is the highest source of zinc!
Then, think kasher.... We have to bleed animals.
Then think sea-shells: they have no iron in blood but copper. Good complement to meat.
I know you won't but I let you know that coffee will prevent some iron absorbtion! Then it is plausible that we could find some plants that do the same when eaten in salads?