Well he can only eat Еда that has кукуруза starch I think but for now Zim can only eat вафель, вафли but later he might get sick.But he might not if they aren't made by Gir.Who knows what he put in them.
ZIM HATES ALL EARTH Еда THEY CAUSE HIM PAIN!!! for example beans make him ooze green slime and make his head all big, water(i think that counts as a food) feels like acid to irken people, BUT HE LIKES вафель, вафли TO SOME EXTENT