I have searched and can find nothing on this. Bo loves his Innova, but he gets an upset tummy. I want to keep him on a good food, but I am curious if mixing Innova and Nutro Natural Choice chicken meal, rice and oatmeal formula would be okay. My thought was that the rice and oatmeal might be enough to firm his stool up. All of my other dogs ate Pedigree, so this premium food stuff is quite new to me.