Good morning!
Is your name Debbie? If so, hi, Debbie! For diabetic cats, it is actually recommended that they eat low-carb canned foods. Most dry food is way too high in carbs for them. However, I would not recommend making a food change unless you are testing at home. When cats are switched to low-carb foods, their need for insulin often decreases very quickly.
Do you test blood sugar levels at home? If you aren't, I would really recommend that you start. I know it sounds terrifying, but it really isn't that bad. If you're interested, we have a lot of tips that can help you. Just let us know! Testing at home lets us see day by day how our kitties are doing. Since insulin needs can change quickly, getting those home tests will help us know when we need to make adjustments. If I wouldn't have been testing at home, for example, I wouldn't have realized when Jersey's pancreas kicked in, and I would have kept giving her too much insulin. Although a vet test gives us a number at one point in time, it doesn't give us the full picture we need to truly understand what's going on.
I hope someone can answer your specific questions about the food brands.
(By the way - we usually use the candle icon to indicate that our kitty has passed away.)
Welcome to FDMB!
Shelly