Food
So first of all we had alot of trouble with our cat Dexter and him being violently sick and we couldn't understand why and after many trips to the vets, we learned he has food allergies which is really common with cats, it turned out to be the cereals that they put in cat food to bulk it up and some cats find this hard to digest, this includes rice grains wheat all that kind of stuff, after alot of trial & error on putting him on different food which said they had no cereals in them we were directed by a very helpful PetsAtHome employee and Applaws dry food contains no cereals and is great as Dexter prefers it to the normal cat food.