Maybe there is getting to be more interest in investigating the role of commercial, processed foods in IBD in cats:
http://www.cfa.org/articles/health/role-of-diet.html
http://www.cfa.org/articles/health/role-of-diet.html
After one week in the study, the cats on the rabbit diet all had significant improvements in their stool quality based on a visual stool grading system (developed by the NestlÃ[emoji]169[/emoji]-Purina PetCare Company). After one month, the cats on the rabbit diet all had formed hard stools, while the commercial diet cats had soft formed to liquid stools.