Nevermind that logic dictates that dogs would naturally have issues with grains. They're simply not made to consume and process them. Think about the diet these animals are naturally equipped to acquire - can dogs harvest, mill and prepare grains? They're not exactly edible straight from the leaf for most carnivore/omnivore species..... They have short digestive tracts which do not lend themselves well to the longer digestive time required by complex carbohydrates, nevermind the inherent protective toxins all grains have to prevent them from being consumed. These produce an inflammatory immune response, allergic or not, in most creatures that consume them. I have had great success in switching our dogs to a grain free food and adding the occasional coconut oil to their diet. It's not a regular thing, just when I am the one feeding and I remember to do it. When we switched to grain free, our doxie even lost his usual 'corn chip' smell and he only gets it now when he's had bread or chips. Merlin was smelly too for a bit but that seems to have gone away as he's grown.