For the Nutritional Management of Obese or Overweight Dogs. <P> Being overweight can cause your pet discomfort, reduce energy levels and even shorten their life. Just as in people, weight gain is usually associated with excessive calorie and fat intake combined with a lack of exercise. Obesity can lead to such serious conditions as heart disease, arthritis, and diabetes. Prescription Diet® r/d® Canine dog food was designed specifically for the management of dogs that are overweight or obese. Its low fat, reduced calorie, high fiber formula helps dogs lose weight while helping them feel full. Prescription Diet r/d Canine has the highest levels of L-carnitine of any therapeutic weight loss food to help burn fat while increasing lean muscle mass. The nutritional formulation of Prescription Diet r/d may also be useful for pets with a variety of conditions.