Buy large breed dog food online from our warehouse in Canada. Large breed dog food is specially designed for the biggest pups, from great danes, to mastiffs, and everyone in between. They’re designed to have more calories, lean protein, and carbohydrates to keep your large breed dog lean, strong, and active. At Canadian Pet Connection, all of the foods we sell are hand picked by our pet nutrition experts. This means we won’t sell anything that we wouldn’t feed to our own pets.