Prescription Diet™ Canine r/d™ was designed specifically for the management of weight problems in dogs. Key Benefits · Scientifically proven to reduce body fat by at least 22% in 8 weeks. · Supplemented with L-carnitine and lysine to burn fat and preserve muscle. · High in dietary fibre to help reduce hunger and discourage begging. · New great taste your dog will enjoy. Please consult your vet for further information and guidance on what is best for your dog.