Hi everyone. I have a diabetic cat named Pumba who was adopted by my family in 2014 and he is currently about 12 years old. He came to us overweight at 18 lbs but didn't yet have diabetes until 2 years later. We had no idea how to properly care for an obese cat and so never thought that dry food would only worsen his health condition.
He's been on insulin until now and currently requires 3 units a day, with his insulin levels coming up to about 310-380 each time we home test him. We've gone through multiple vets and not one of them ever bought up dry food being an issue, which I'm not quite sure why since the vast majority of diabetic cat owners online always strongly recommend wet food. He's currently on Royal Canin's Feline Glycobalance and though initially that plus the insulin did help get him down to 14 lbs, he's stayed the same weight ever since, which I suppose isn't too healthy since 12 or 13 is supposed to be the normal weight.
I've tried to give him wet food in the past and I've used the tricks that I read up online about; continuously putting a can of wet food next to his dry food to slowly introduce him to it, mixing his dry food with wet, giving different kinds of wet food, and just straight up replacing dry food with wet food altogether. He never wants to touch the wet food as long as the dry food is there and if it isn't, he'll just walk away and sit until his dry food comes. Being diabetic, I know I can't stand to starve him for too long so I always have to give in. I do have a strong feeling that wet food can help him because a couple months back we had him in the pet clinic for 2 nights to treat his pancreatitis and the vet reported that his insulin levels were so low they never gave him insulin. All that time they fed him wet food and he was said to have ate it all. But once he got home, he refused to eat anymore of what they fed him and went back to his old ways.
If anyone thinks they have advice that will help out an extremely stubborn cat change his ways, please let me know. I desperately want him to go into remission and I think he can do it but the difficulty he's giving my family over all these medical expenses is really mentally stressing us all out. Thanks in advance for anyone who replies!
He's been on insulin until now and currently requires 3 units a day, with his insulin levels coming up to about 310-380 each time we home test him. We've gone through multiple vets and not one of them ever bought up dry food being an issue, which I'm not quite sure why since the vast majority of diabetic cat owners online always strongly recommend wet food. He's currently on Royal Canin's Feline Glycobalance and though initially that plus the insulin did help get him down to 14 lbs, he's stayed the same weight ever since, which I suppose isn't too healthy since 12 or 13 is supposed to be the normal weight.
I've tried to give him wet food in the past and I've used the tricks that I read up online about; continuously putting a can of wet food next to his dry food to slowly introduce him to it, mixing his dry food with wet, giving different kinds of wet food, and just straight up replacing dry food with wet food altogether. He never wants to touch the wet food as long as the dry food is there and if it isn't, he'll just walk away and sit until his dry food comes. Being diabetic, I know I can't stand to starve him for too long so I always have to give in. I do have a strong feeling that wet food can help him because a couple months back we had him in the pet clinic for 2 nights to treat his pancreatitis and the vet reported that his insulin levels were so low they never gave him insulin. All that time they fed him wet food and he was said to have ate it all. But once he got home, he refused to eat anymore of what they fed him and went back to his old ways.
If anyone thinks they have advice that will help out an extremely stubborn cat change his ways, please let me know. I desperately want him to go into remission and I think he can do it but the difficulty he's giving my family over all these medical expenses is really mentally stressing us all out. Thanks in advance for anyone who replies!

And I'd like you to know that I appreciate you sticking around to answer my constant barrage of questions. I don't know anyone else dealing with a diabetic cat so to be able to converse with a bunch of people who have experience with this is just what I am looking for.
According to most of the instructions for the canned foods, I've estimated that Pumba will need 2 cans per meal because he weighs around 14 lbs. Though it's mostly 3 oz cans I've read about. Are you also using 3 oz cans for feeding each time?