Either way, an elimination diet would almost certainly help. For sure it would not hurt.Originally Posted by strange_wings
^But how does one know this is even IBD/IBS? No biopsies have been done, it certainly doesn't sound like an elimination diet has been done, and likely very little diagnostics - especially since the vet hasn't pointed out the food issue. It could simply be that this cat can't tolerant friskies and 9lives - they have a lot of junk in them that perfectly healthy cats can't deal with (like soy). Right now IBS just sounds like guessing.
Natural Balance is very good about sending people samples. From stories on here, people that ask usually end up with a box full.
If food allergy, it would help, if IBS it would help too during the diagnosis phase. What would not help, is to have the cat in a diet with a whole lot of allergens, or in junk food IMHO.