For overweight or obese dogs, Purina Pro Plan Veterinary Diets OM Overweight Management Canine Formulas have been specially formulated to help dogs lose weight while maintaining muscle. The science behind our therapeutic diets represents a collaboration between Purina nutritionists, researchers and veterinarians. Low in fat and calories High protein-to-calorie ratio promotes loss of body fat while helping maintain lean body mass Contains natural fiber to help contribute to satiety Isoflavones help reduce the risk of weight regain and fat accumulation Available in dry, including Select Blend, and wet to meet your dog's preference and help with weight-loss success May be fed for weight loss or weight maintenance Great taste