Ya know, I'm wondering...now that I read this,,,In the last month I switched from Eukanuba to Nutro- lamb and rice,,,, He loves it,,,but in the last 2 weeks he is always running along the couch and making noises like he loves it,, and if you touch his back, above his rear end,,,he gets all crazy like he loves it,,like it needs scratched,,, I'M WONDERING ,,,do ya think its the new food brand,,,, anyone else ever experience this??? I didn't consider it till I read this,, i thought he just liked getting his butt rubbed! hehe,,,