What's the best food for your dog? It's a question that only you can answer - because you are the only one who is in a position to gauge, on a daily, monthly, and yearly basis, how your dog responds to what you feed him. That said, we can give you some tips to guide you into the right section of your local pet supply store - that is, past the lowest-cost, lowest-quality foods; past the higher-cost but still low-quality posers; and into the area where the top-quality foods are found. Take note: They are expensive, perhaps prohibitively so, especially for families with several large dogs to feed. But you can't expect to pay hamburger prices for filet mignon, and it's the quality (and thus price) of the ingredients that set the top-quality foods apart. Dry food is not the healthiest diet for your dog. If you want to provide the very best, most natural diet possible for your dog, you'd feed a well-researched, home-prepared diet comprised of fresh foods. Or, next best, a well-formulated, commercially made frozen raw or dehydrated diet. Next best would be a top-quality wet food; even poor quality wet foods usually contain a higher percentage of animal protein (and a much lower percentage of grain) than good dry foods. Of all of these forms of dog food, kibble is probably the least natural for the dog. But its popularity is mainly based on three factors: It is relatively stable and therefore very convenient for the owner to buy, store, and feed. It's usually less expensive, calorie for calorie, than other forms of food with comparative ingredients. And most dogs do fine on a dry food diet.