I've read that high protein diets are the best for diabetic cats and that canned food would be much better than dry because it has more protein in it and less carbs. Hopefully she'll continue to do well on the new food. Some cats will eat canned food too fast so then this causes them to throw it back up. My RB Sunny would do this so I had to mix his with some dry food and the problem was solved.

I also hope that you'll be able to get their weights down. I know how hard this can be when they act hungry all of the time. My Ziggy Stardust is a little over 14lbs but she is a very large cat. Last year she was 15.9lbs which is too heavy. My vet told me that she had to go on a diet. I had to feed her smaller portions of dry food and she was able to lose some weight.

I've found that by feeding cats several smaller portions, that his helps to keep them satisfied. I feed Storm, Sky, Pearl, & Ziggy Stardust a high protein dry and canned diet. They get no more than a 1/2 cup of Wellness Core dry and Storm & Ziggy eat about 1/2 of a can of Wellness grain free a day. Sky & Pearl only eat about 1/4 of a can a day. I feed them 2 small portions in the morning and 2 small portions in the evening.

Alani & Blaze didn't do well on Wellness Core because they need more fiber so they're on Chicken Soup For The Cat Lovers Soul Light Formula dry. They get some canned a few times a week because they can't handle it every day. Good luck with everything.