Do you know if your dog is overweight? Many of today’s dogs are overweight or obese. When determining if your dog is overweight take into account your dogs breed, age, and size. Most veterinarians use a 9-point scoring system to evaluate the body condition of your dog. A 1 means your dog is grossly underweight while a score of a 9 shows your dog is extremely overweight. The ideal score is a 5, which is just right. First you should be able to feel your dog’s ribs easily. The ideal dog will have a thin layer of fat over the ribs.