I didn't want to overhwhelm you but there are other quality foods out there. Most of these are not even offered at PetSmarts in the South. I find foods at local feed stores or the less well-known general feed stores for horses and other farm animals.

Eagle has several cat foods that are high quality. I couldn't the critters to take to it, though. Spunky needed it for his kidneys, but has done well on Innova and real meats. Eagle Pack Products

Solid Gold is supposed to be excellent or was at one time. Solid Gold Health Food for Pets

I'm feeding mine Innova Evo right now since that is all the store had. they seem to like. I think mine go by shape. They like the pellets and not triangles or crosses. Silly critters.

Hope your kitty continues to do better.