My vet suggested we try a new food with Ozzy since it seems possible he's having some allergy issues. He hasn't been diagnosed with anything but she thought it would be worth a shot to see how he does. She recommended Natural Balance Venison and Sweet Potato. I was looking around online and came across Sold Gold Wolf King and thought it sounded promising. Her thought was to try something with a different protein and grain source from what he's currently eating (Fromm's LBP).