Before it was noticed that my girl had a chicken allergy, we used Iams. The people at one of the local pet stores said that Eukanuba was a better quality dog food, and that we'd sure notice it with the amount she would poop. Boy...did we ever notice! We gradually moved her over to Eukanuba and the poopies changed alright....there were tons more!!!
It went right through her! Eukanuba = bad (at least for Diamond)