Thank you for your question. We would not recommend feeding your pet more than one product at a time. Our products are formulated to be 100% nutritionally complete and address your pet's special needs. When you mix Hill's products together or mix another brand of pet food with our products, you may minimize these benefits.
Hill's® Prescription Diet® d/d® formulas are limited ingredient nutrition with single intact animal protein. These products are grain free and made with gluten free ingredients. These formulas are free from soy protein and contain high levels of Omega-3 and 6 fatty acids.
Hill's® Prescription Diet® z/d® Canine has a highly hydrolyzed animal protein and a single purified carbohydrate source. This product has high levels of vitamin E and natural fiber. This product has no gluten, soy protein, or lactose.
We suggest speaking with your veterinarian to determine the most appropriate product for your pet’s specific condition. We hope this helps. Hill’s Pet Nutrition
Date published: 2018-07-22