If excess weight, diabetes or digestive troubles are causing problems for your dog, the nutritional support of Prescription Diet w/d Canine canned dog food can help. Its fiber rich formula may be useful as a nutritional aid for dogs with fiber-responsive diseases such as diabetes mellitus, colitis, diarrhea, and constipation. Its also highly effective for weight control and the nutritional management of overweight dogs, including those with struvite urolithiasis. Feeding the right food can help your pet live a healthier lifestyle. The nutritional formulation of Prescription Diet w/d can help with these problems and may also be useful for pets with a variety of conditions. *Offer valid on a single Hill's product AutoShip per account per year. Offer resets January 1. Maximum savings of $20.