Who can resist the appeals for treats and table scraps made by those puppy eyes? But, say veterinarians, this leads to obesity in pet dogs. If your canine baby has a begging habit, use automated feeders set to dispense food four to six times a day. Also, because protein promotes satiety, choose foods with highly digestible, usable protein. Add a high-protein snack at bedtime like fully cooked eggs, cooked chicken or fish. Vegetarian sources of protein include green beans, cooked quinoa, lentils and peanut butter. In addition, offer whole, fresh, crunchy veggies like baby carrots, cucumber and zucchini slices as low-calorie snacks. Note that high-protein diets are not recommended for dogs with kidney problems. Seek the advice of your veterinary expert.