Food sensitive cats will benefit from the ingredients in Purina Pro Plan Veterinary Diets HA Hydrolyzed Feline Formula Cat Food. This highly digestible food contains hydrolyzed protein that has been broken into small components, which are likely to cause a negative response in food sensitive cats. Features: Only hydrolyzed protein sources Single carbohydrate source Highly digestible for optimal nutrient absorption This diet promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals in cats Food Type: Dry Food Consistency: Kibble Life Stage: Adult Primary Ingredient: Rice Starch Package Weight: Available in 4 lb and 8 lb sizes Feeding Instructions: Provide adequate fresh water in a clean container daily. For your pet's health, see your veterinarian regularly. Kitten Feeding: If your cat is under one year of age, consult your veterinarian for the proper amount to feed. Use only as directed by your veterinarian. For additional information about this diet, consult your veterinarian. Product not intended for ruminants or livestock. Feeding: The following feeding program is recommended as a guideline only, with discretionary clinical adjustments for proper weight maintenance. With your veterinarian's approval, offer increasing amounts of the new food with decreasing amounts of the old food. This bag contains approximately 20 cups of food. Store in a cool, dry place. Ingredients: Rice Starch, Hydrolyzed Soy Protein Isolate, Partially Hydrogenated Canola Oil Preserved with TBHQ, Hydrolyzed Chicken Liver, Tricalcium Phosphate, Powdered Cellulose, Corn Oil, Hydrolyzed Chicken, Sodium Bisulfate, DL-Methionine, Potassium Chloride, Choline Chloride, Tetra Sodium Pyrophosphate, L-Lysine Monohydrochloride, Phosphoric Acid, Salt, Guar Gum, Taurine, Lecithin, Magnesium Oxide, Zinc Sulfate, Ferrous Sulfate, Vitamin E Supplement, Manganese Sulfate, Niacin, Vitamin A Supplement, Calcium Pantothenate, Thiamine Mononitrate, Copper Sulfate, Riboflavin Supplement, Vitamin B-12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D-3 Supplement, Calcium Iodate, Biotin, Menadione Sodium Bisulfite Complex (Source of Vitamin K Activity), Sodium Selenite. A-2564 Guaranteed Analysis: Crude Protein (min) 30.0% Crude Fat (min) 9.0% Crude Fiber (max) 4.0% Moisture (max) 10.0% Ash (max) 7.75% Calcium (Ca) (min) 0.9% Phosphorus (P) (min) 0.8% Caloric Content: 4032 kcal/kg, 350 kcal/cup Important Notice: A prescription from a veterinarian must be obtained in order to purchase this food. Visit your vet to learn more information about switching your pet to a prescription-based diet and how to make the change. Check your local store for availability prior to purchase. Size: 4 Lb.