Daisy has IBD or food allergies, the vet still isn't sure. Either way, she had a horrible time with diarrhea & vomiting until we put her on duck & potato. Recently, we tried transitioning her to Innova (green bag) over the course of 8 weeks (so super slowly), b/c Cassie does so well on it. All was fine until about the 5th week and then the problems started again. Back to the d&p we went and she still had horrible room-clearing gas for another week or two until her digestive system calmed back down. She's been back on d&p 100% for about 3 weeks and she is fine now. Sammy was up to 3/4 Innova & 1/4 duck & potato before he started to have sloppy poops & gas again, so now he's back to 3/4 d&p and 1/4 Innova. Sigh.....My point is that some dogs for some unknown reason just can't take these other foods with more varied ingredients. Maybe Riley will do better with pumpkin & all, or maybe you'll need to go back to the oatmeal & duck. In any case, I hope that he feels better soon. I'll be curious to know how he's doing.