A major cause of urinary tract problems in dogs is the formation of bladder stones. The formation of bladder stones starts with the formation of crystals in the urine. Urinary acidity and mineral composition affect the formation of these crystals. Royal Canin's Urinary S/O Moderate Calorie can help reduce the formation of bladder stones, such as struvite. Thanks to increased fluid intake, the amount of urine is increased. This reduces the concentration of crystal-forming compounds in your four-legged friend's urine. Urinary S/O Moderate Calorie helps keep the urinary tract healthy in dogs with a tendency to be overweight or after castration or sterilisation.