I'm way behind in reading the List but I wanted to come to the defense of diet, and especially Innova. Living in the SF Bay Area, Innova was an easily obtained dog food as it was manufactured there. I fed my first Berner on it and she was GDC excellent with clear elbows. We moved to Montana and it was very costly to have it shipped to us but I continued with it. When her daughter was born and ready for kibble, I fed her Innova. She too was GDC excellent, elbows clear. I only stopped feeding Innova when it became too rich for their digestion...for a time I mixed it with California Natural and had good results, but shipping the food in became too cost prohibitive. My point is that my girl's pedigrees have consistently produced dogs with excellent/good orthopedics. I highly doubt that Innova has anything to do with HD/ED, unless one over feeds/over exercises their Berners.
Shelley Gonzales Bigfork, MT