I feed Innova Senior after having bad luck with a variety of other brands. My dogs have allergies to pollens and foods( one cant have beef or soy) and also both had to have bladder stone surgeries last year.

I started doing a bit more research, and decided I would no longer feed my dogs Hill's products. They never did well on Eukanuba or Iams OR Nutro's either. I found Innova, which is made from human grade foods, and also has probiotics to aid digestion, and glucosamine/chondroitin sulfate for joing protection. Against my vet's advice ( they wanted me to feed Hill's C/D) I put both dogs on the Innova and they have maintained their urine pH and not developed any crystals or stones and only one UTI in the past year. They also have more energy and the allergies seem more under control. If I sound like an ad, its only because I'm very thrilled with the Innova product. I even feed it to my 7 rats now!