Rush is 14 years old and is diabetic. To make a long story short, the insulin he is on was making him throw up horribly every night, so now he is off of the insulin. We already spent close to $300 on blood tests that got us nowhere, so we are hesitant to take him to the vet again to just be told, $300 dollars later, "we really have no clue, but we can try this...." But that is besides the point.

With him now not on his insulin he has gotten SKINNY. He used to be a plump-ish cat and now he is skin and bones. I don't know how much food he eats (we free feed him), but apparently it isn't enough.

I was wondering if there was any type of food I could feed him to get him to gain some weight? He LOVES canned food and I've been feeding him half a can a night just for a treat. Would giving him the daily ration of canned food ment for a cat of his weight help to plump him up or should I buy a different brand of dry food (currently he is on Iams Hairball as it is high in fiber....the vet said he should have a diet hight in fiber).