Dry dog food is the most commonly used type of food for dogs. It is cheaper than wet food, and a good brand of dry food will have all the nutrients your dog needs. Another major advantage of dry dog food is that it is hard and crunchy, which is excellent for scraping plaque and tartar from your dog's teeth and keeping his gums clean.
Wet dog food is generally more tasty and appealing to most dogs. However, a problem with wet food is that it is more expensive and typically has a high ratio of water content; meaning you are paying more and getting less.