Wow, what a familiar post.......
We had a pitbull that ate Natural Balance and he was SO gassy, regardless of the flavor. We tried them all. Anyway, he had bumps on his feet and legs that looked more like boils and they would bleed and swell up. It was awful. We finally broke down and let the vet do allgergy testing on him. He was allergic to corn, rice, turkey, and lots of trees and grasses. One of the main allergies was Maple trees and we have 3 in our backyard. He was on shots until the day he went to rainbow bridge
. They helped tremendously. It cost about $150 for the testing and $100 for each round of shots, which last about 10 months. It was worth every cent.