As much as I love my cats, I had a hard time loving my one cat when she was having stomach issues and leaving me presents all over the place. Due to this, I ended up taking her in to see the vet. But as there are many things that can go wrong with your cat and they are not able to talk and tell you about it, diet is one of the first things that they recommend you do. I had her on a few different foods at that point to no available, so it was suggested to put her on just plain boiled chicken for a bit and see how that worked for her.
Thankfully, this was a relatively easy treatment – I just needed to cook a chicken. As I had chicken breasts in the house, I just boiled a few of those up, tore them apart and gave them to her. But due to this being something different and unsure about, she wasn’t too sure about it and wanted nothing to do with it. I ended up leaving the food out for her and not giving her anything else, with the thought that eventually she would get hungry enough to eat and sure enough, that is exactly what happened.
For the week or two I left her on a chicken only diet, she did great and had no issues. I ended up having to do this once more as I had switched food again and it cleared the issue up. I would recommend you try this with your cat if he/she has food issues, but of course, you should check with your vet first.