But the first ingredient is corn syrup. She has diabetes. So I don’t think it would work.
There are various prescription canned foods too, including something that is very rich and will melt into a thick gruel when warmed. When worse came to worst, I wrapped the cat in a black plastic trash bag to keep her fur clean up to her head, plopped her into the bathtub on a towel, and put it down her throat with a turkey baster. Kind of messy, but due to the tub not hard to clean up afterwards. A washcloth cleaning of the head and she was ready to go.