Royal Canin Canine Urinary So Moderate Calorie Morsels In Gravy Can (24/12.7 Oz) For Dogs With Or At Risk Of Developing Feline Lower Urinary Tract Disease And Predisposed To Weight Gain Promotes A Urinary Environment Unfavorable To The Development Of Both Struvite And Calcium Oxalate Crystal Formation Complete And Balanced Nutrition For Adult Maintenance Controlled Amounts Of Magnesium, Phosphorus, And Protein To Keep Your Dog'S System Running Clean Ingredients That Acidify Your Dog'S Urine And Prevent Stone Buildup