Turning to the experts please. Got a second opinion on echos wing. In that the other AV identified a weak gizzard. He wants to put him on supplements and do poo sample. Due to our previous experiences with the tapping I want to make sure I thoroughly research options. While I am open to digestive issues based on last blood results. He's previous results have been excellent and not much has changed diet wise. What would a healthy gizzard diet consist of? How can we help protect the gizzard lining through diet? What foods should we avoid? Hard wood, plastic and leather have already been suggested by vet nurse to avoid as hard to digest. Any thoughts would be great.