BENEFITS: STRUVITE DISSOLUTION Provides nutrition that aids in the management of pure struvite uroliths. CONTROLLED MAGNESIUM -Reduced level of magnesium, a natural component of struvite stones URINE DILUTION -Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals. LOW RSS -Relative super saturation (RSS) methodology predicts the crystallization potential of urine. RSS is used to develop diets that lower the concentration of ions contributing to struvite and calcium oxalate urolithiasis. Ingredients: Water sufficient for processing, pork by-products, chicken liver, chicken by-products, wheat gluten, wheat flour, natural flavors, modified corn starch, pork plasma, powdered cellulose, vegetable oil, salt, fish oil, calcium sulfate, potassium chloride, guar gum, sodium tripolyphosphate, taurine, sodium bisulfate, DL-methionine, vitamins[DL-alpha tocopherol acetate (source of vitamin E), thiamine mononitrate (vitamin B1), niacin supplement, biotin, D-calcium pantothenate, folic acid, pyridoxine hydrochloride (vitamin B6),riboflavin supplement, vitamin B12 supplement, vitamin D3 supplement], choline chloride, trace minerals[zinc proteinate, zinc oxide, ferrous sulfate, copper sulfate, manganous oxide, sodium selenite, calcium iodate], marigold extract (Tagetes erecta L.). Guaranteed Analysis Crude Protein (min.) 8.5% Crude Fat (min.) 2.0% Crude Fiber (max.) 1.75% Moisture (max.) 82.5% ROYAL CANIN® Feline URINARY SO morsels in gravy is formulated to meet the nutritional levels established by the AAFCO Cat Food Nutrient Profiles for maintenance.