The same stuff that is in those photo links leaves me every time I take anthelmintics. What a relief to know that they are just "undigested food"; that the idea they were parasitic is just a "delusion". The dewormers must retard the digestion process, so things like tomatoes that I haven't eaten in weeks pop out in strange "fruit roll up" shapes. It's ironic, how much better I feel when I'm "not digesting properly". As for the black fibers and spots within the meaty material, the suc***fish shapes, the roots, the white ovals....So nice to know this is all just poor digestion that occurs on the weeks I take anthelminthics.