Prescription Diet's y/d Feline Thyroid Health improves works to keep your cat's thyroid healthy while giving her essential vitamins and nutrients. High levels of omega-3 and -6 fatty acids leave your cat with a silky, soft coat. Food Type: Dry Food Life Stage: Adult 1-10 yrs Health Consideration: Thyroid Flavor: Other Primary Ingredient: Corn Gluten Meal Package Weight: 4Lb Directions: Feed 1/4 - 3/8 cup to cats weighing 6 lb.; feed 3/8 - 5/8 cup to cats weighing 10 lb.; feed 1/2 - 3/4 cup to cat weighing 14 lb.; feed 2/3 - 7/8 cup to cat weighing 18 lb. These amounts are a starting point only. Your cat may need more or less food depending on her weight. Keep fresh water at all times. Receive your veterinarians approval before switching your cat's diet. If switching your cat's diet, mix in increasing amounts of the new food with the old food until she is completely switched over to the new food. Ingredients: Corn Gluten Meal, Animal Fat (preserved with mixed tocopherols and citric acid), Whole Grain Corn, Soybean Mill Run, Dried Egg Product, L-Lysine, Chicken Liver Flavor, Potassium Citrate, Lactic Acid, Dicalcium Phosphate, vitamins (L-Ascorbyl-2-Polyphosphate (source of vitamin C), Vitamin E Supplement, Niacin, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), Fish Oil, Choline Chloride, Calcium Carbonate, Calcium Sulfate, DL-Methionine, Taurine, Vitamin E Supplement, L-Tryptophan, Natural Flavor, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Sulfate), L-Carnitine, preserved with Mixed Tocopherols and Citric Acid, Phosphoric Acid, Beta-Carotene, Rosemary Extract. Guaranteed Analysis: Crude Protein (Min.) 30.0% 300 g/kg Crude Fat (Min.) 20.0% 200 g/kg Crude Fiber (Max.)3.5% 35 g/kg Moisture (Max.) 8.0% 80 g/kg Ash (Max.) 6.5% 65 g/kg Calcium (Min.) 0.6% 6 g/kg Phosphorus (Min.) 0.45% 4.5 g/kg Phosphorus (Max.) 0.85% 8.5 g/kg Sodium (Max.) 0.3% 3 g/kg Vitamin E (Min.) 550 IU/kg 550 IU/kg Taurine (Min.) 0.15% 1.5 g/kg Ascorbic Acid* (Vitamin C) (Min.) 85 mg/kg 85 mg/kg *Not recognized as an essential nutrient by the AAFCO Cat Food Nutritional Profiles. 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.