Iams believe that the right diet can do amazing things for pets, like boost immunity, help burn fat, help maintain muscle and promote healthy digestion, aid in weight loss, reduce tartar build-up, and, in some instances, even nutritionally manage the progression of disease. Quality is at the core of Iams dog food and cat food. Iams premium pet foods are available to buy online from Petzilla at low prices and with free UK delivery*, making premium pet nutrition available to all.