I am just wondering why people try to supplement a dog´s diet with ingredients which are not part of it´s natural diet. Is a dog not a hunter/scavenger? Is it wise to give your dog fish for added iodine for example, rice for carbohydrates? Could it be that trying other foods for your dog is actually causing more damage than good? That it´s skin allergy is not from eating to much cod liver oil, but because it is not recieving a natural diet consisting of meat, bone and digestive tracts?(Containing digested grass, therefore vitamins and minerals) I am not trying to say that cooking for your dog is the wrong thing to do, I am just trying to understand the logic behind it .