ROYAL CANIN Cat Urinary S/O is a complete dietetic food for adult cats. Royal Canin Urinary S/O is a food developed to support the treatment of urinary tract diseases, and in particular to dissolve struvite and calcium oxalate stones. Composition Meat and animal by-products, cereals, vegetable protein extracts, by-products of vegetable origin, minerals, oils and fats, sugars. Analytical constituents: Protein: 10% Fat content: 3.5% Crude ash: 1.8% Crude fiber: 1% Moisture: 80% Taurine (total): 0.1% Calcium: 0.22% Phosphorus: 0.19% Sodium: 0.3% Magnesium: 0.012% Potassium: 0.18% Chloride: 0.42% Sulphur: 0.17% Urine acidifying substances: Calcium sulphate: 0.25% - DL-methionine: 0.03%.