I purchase Purina DM (Diabetic Management) cat food through my vet for Morgan. When he was first diagnosed over 2 years ago, he was on 5 units of insulin twice a day. Since he has been on the DM, he's been weaned off of having to have the insulin. The 12 lb bag of cat food costs $45, but I have found that it is cheaper than the insulin and needles needed to give him shots. He also has a small teaspoon of high protein low carb canned food in the morning and afternoon. The afternoon one was added when he had to have the insulin shots twice a day. I know there are other ways of treating the diabeties, and if this hadn't worked so well for Morgan, I would have tried something else. With only having to give 2 units per day to the kitty, it might be that changing his food could regulate his sugar enough that he won't need insulin as well. Morgan has been off of the shots for 18 months.