Royal Canin Urinary SO is a veterinary diet that is a dry food specially formulated to ensure the health of the urinary system of your adult cat. This formula also has the effect that it dissuades from forming because it does not allow struvite and calcium oxalate to coagulate. It also helps in passing of water and also enables the removal of the minerals that causes formation of crystals and stones. \n \n The food employs use of RSS (Relative Supersaturation) in order to minimize the concentration of ions in the urine hence minimizing formation of more stones. Lower magnesium includes diets that dissolve and prevent pure struvite stones from forming Intake. In this regard, since these particular disorders can be cyclical in the feline, check with your veterinarian in using this food as the long-term maintenance for UT problems. \n \n Chicken by-product meal, brewers rice, corn, corn gluten meal, chicken fat, wheat gluten, natural flavors, wheat, salt, powdered cellulose, fish oil, potassium chloride, sodium bisulfate, calcium sulfate, sodium pyrophosphate, vegetable oil, fructooligosaccharides, choline chloride, vitamins (including vitamin E, niacin, biotin,