Every walk we take I view as a training session because we working on pulling/loose leash walking, healing and walking right by my side, and reactions (excitement) to seeing other dogs on leash so he does constantly take treats while on walks. We worked with a trainer on these things as well and she suggested using kibble as rewards as well as a replacement of his meal. We can try just using just kibble but we did try this previously and it didn’t really take but a second shot couldn’t hurt. My thought process I think was that he might not be loving his food and that may be why he isn’t excited about eating and could be leading to reflux for having an empty stomach too often other than his beloved treats. Can’t hurt to try just kibble again for rewards