Prescription Diet® k/d® Feline pet food is specially formulated by nutritionists & veterinarians to help manage cats with kidney disease and is clinically tested nutrition to improve & lengthen quality of life, and preserve lean muscle mass. Reduced sodium chloride and phosphorus Helps control clinical signs associated with sodium and fluid retention (ascites/edema) and minimizes systemic and renal hypertension (primary) and helps slow the progression of kidney disease. Added B complex vitamins help compensate for urinary losses due to kidney disease and increased dietary buffering capacity helps counteract the tendency for metabolic acidosis, a common complication of kidney failure, to help lessen muscle wasting. Ingredients Brewers Rice, Whole Grain Wheat, Ocean Fish, Corn Gluten Meal, Pork Fat, Wheat Gluten, Egg Product, Chicken Liver Flavor, Flaxseed, Dried Beet Pulp, Fish Oil, Soybean Oil, Calcium Sulfate, Lactic Acid, Potassium Citrate, Calcium Carbonate, L-Lysine, DL-Methionine, Choline Chloride, Taurine, Potassium Chloride, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Iodized Salt, L-Tryptophan, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene.