Description (1.5kg)Hill's PRESCRIPTION DIET s/d Cat Food with Chicken is a complete dietetic pet food for dissolution of struvite stones in adult cats (cause of feline lower urinary tract disease, FLUTD). This food has urine acidifying properties and contains a low level of magnesium. Composition Cereals, meat and animal derivatives (chicken 18%), oils and fats, vegetable protein extracts, eggs and egg derivatives, minerals.