Just like humans, dogs too put on ‘winter weight’. The combination of not being able to go outside as often due to bad weather conditions, more treats (especially with the holidays) and the fact that dogs, like all animals, need more calories in the winter just to stay warm, means that by spring if things aren’t done right, you can have one pudgy pooch! However, you can keep your dog’s weight down and still keep him warm just through the proper foods in your pet’s diet.