I've posted recently about my 2 yr old male who frequently hacks or coughs, but no hairballs come up. I was told by the vet that his lungs sounded fine and that, outside of losing a pound or two, he was completely healthy. Well, he still hacks every few days. I may try a different vet, or ask for an x-ray to rule out asthma. (He crouches down, extends his neck, coughs, and nothing comes up).
But in the meantime, I'm contemplating switching his food to a limited-ingredient kind. (Currently I feed Taste of the Wild dry, plus varying cans of quality wet food like Wellness, Chicken Soup, Merrick)
I am not very familiar with allergy foods, but I know Natural Balance has a few flavors that are LID. Are there any others? Should I try the Duck, since that's a novel protein? They all seem to do well with chicken flavors (I never feed fish), but I don't know if chicken could be an allergen.
Would the wet foods need to be LID, too? And should my other cats be switched as well?
Any other thoughts? Anyone else experience with this type of hacking and was food the issue?







. I would definitely get an xray or two done
Natural Balance would be a good choice if you are worried about allergies. Instinct also makes a LID - I personally love Nature's Variety and all of their line of foods. I still would go ahead and get that xray though - food allergies don't usually cause a chronic hacking cough like that. 



