Understand that each food is different with regards to its caloric content and caloric density. As a result, the brand of food you are feeding plays a big role in the amount you'll ultimately be offering your dog. Don't always go by what the label recommends to feed. Dog food manufacturers tend to aim high with their recommendations; after all, the more food your dog eats, the more money they make. Instead, focus on the calories per serving. Armed with that information lets check out how to determine daily calorie needs.