Trovet Urinary Struvite Chicken Cat 100G / Asd Urinary Struvite is dietary food, specially formulated to prevent the formation of struvite crystals. Urinary Struvite lowers the urine pH. In combination with the lowered mineral content the reoccurrence is further reduced.Product features :- The low potassium level will help to keep the urinal pH low.Magnesium is at a safe low level, ensuring that long term preventive use causes no risk of hypomagnesaemia.