PRO PLAN Weight loss/Sterilised with OPTIWEIGHT is for overweight dogs or dogs that have been sterilised and is suitable for dogs of all sizes. This low fat food* can help your dog achieve and maintain a lean body mass during weight loss and after sterilisation, to help them stay in top condition for years to come. PRO PLAN Weight loss/Sterilised promotes up to 60% body fat loss within 12 weeks. It helps reduce the feeling of hunger through high protein content, complex carbohydrates and suitable fibre level. That means better management of your dog’s appetite, while maintaining their muscle mass and supporting healthy joints for your dog’s active lifestyle. It also helps prevent future weight gain through lean body maintenance, encouraging calorie burning** with feeding guide. As part of a healthy dog diet and exercise routine, our low fat dog food* can help your pet achieve their weight goals while still providing them with all the nutrients they need for their day-to-day activities. Chicken Formula. Made