ROYAL CANIN Veterinary Urinary S/O Moderate Calorie 85g is a complete dietetic food for cats intended for the dissolution of struvite stones and the reduction of recurrent struvite stone formation. Urine undersaturation or metastasizing properties to dissolve struvite stones, reduce their formation and/or Urine acidifying properties. COMPOSITION: Rice, dehydrated poultry protein, wheat gluten*, maize flour, vegetable fibers, maize gluten, animal protein hydrolysate, mineral salts, animal fats, fish oil, soybean oil, fructo-oligosaccharides, marigold extract (source of lutein). ANALYTICAL CONSTITUENTS: Protein: 34.0% - Fat content: 11.0% - Crude ash: 8.8% - Crude fiber: 7.0% - Phosphorus: 0.9% - Calcium: 1% - Sodium: 1.2% - Magnesium: 0.06% - Potassium: 1% - Chloride: 2.14% - Sulphur: 0.7% - L-carnitine: 200 mg/kg.