Give your lovable cat extra support with Royal Canin Feline Urinary SO Dry Cat Food. This dry cat food formula is a great source of vitamins for cats and helps promote an environment unfavorable to the formation of both struvite and calcium oxalate crystals. By helping to increase the amount of cat urine your feline friend produces, this perfectly formulated dry cat food helps with the dilution of excess minerals. With a reduced level of magnesium, this specialized nutrition helps dissolve pure struvite stones and helps prevent calcium oxalate stones from forming. Mix with your cat’s complementary Royal Canin Urinary SO Wet Cat Food (sold separately) to give it a texture that pleases even the fussiest eater.