raincitygirl

As others have said, starving cats into eating does not work and is very dangerous. Can you mix in a tiny bit of the Natural Balance with the gastro food and see if that will help? Is the texture of the other food different? If it's pieces + gravy and she's used to mush, try mashing it with a fork and a splash of hot water instead of microwaving. Alternatively, with my picky eater I sometimes warm up some chicken broth and dilute the food with that - he'll eat the liquid and ignore the solids, but if they're mushed up together, he's at least eating.