Hill's Prescription Diet z/d, Canine ULTRA Allergen-Free Dry Formula is a hypo-allergenic dog food which minimizes adverse reactions. Ultra Allergen-Free uses a hydrolizing process to break down, reconstitute proteins to a non-allergenic configuration

• digestible proteins that minimize the chances of bad reactions from your dog
• Hill's z/d ULTRA Allergen-Free dog food contains NO whole animal proteins
• incorporates digestible carbs and fats to minimize gastrointestinal strain in your pet's system
• contains boosted omega-3 and omega-6 fatty acids to improve your pet's skin health

digestible proteins that minimize the chances of bad reactions from your dogHill's Prescription Diet