So my guy is allergic to pretty much every protein..so i put him on purina pro plan ha diet(hydrolyzed protein). I dont like it he seems lethargic. I wanna put him back on zignature and noticed they have multiple fish flavors and goat. Goat is not listed on allergy report so idk if its such an uncommon protein that they dont test for it or if goat is ok. As for the fish, “fish mix” is listed as an allergy…now does that mean all kinds of fish? I see zignature has catfish, whitefish, etc. thanks for any feed back.