When Sammy would not eat my vet recommended I called the company (science Hill). I spoke to a rep who gave me suggestions that would make sammy interested in the food but not compromise his health. One I remember was the water from a can of tuna -- I ate a lot of tuna sandwiches for a while
to get the water lol. There were other suggestions too.
I also got recipes for homecooking from a vet nutritionist --
About 3 months past my vet changed from science hill to royal canne and sammy did like it a bit better.