Many cats suffer from flutd feline lower urinary tract disease, a complex and painful disease of the lower urinary tract, frequently associated with the formation of crystals which can lead to bladder stones. The two most frequent types of crystal which form in the urinary tract are struvite and calcium phosphate. Hill’s prescription diet feline s d urinary care chicken helps to reduce both of these types of urinary stones. Struvite crystals and stones tend to develop because of too much magnesium, ammonium and phosphorus in the urine and an alkaline urine ph. Hill’s prescription diet feline s d urinary care chicken aids the disintegration of struvite stones by making the urine ph more acidic which helps to dissolve struvite stones. Hill's prescription diet s d urinary care chicken at a glance complete dietetic food for adult cats specifically developed for cats suffering with struvite stones optimal urine ph contains urine acidifying dl methioine and a tailored magnesium content dissolves struvite stones supports the disintegration of existing struvite stones and crystals and lowers the risk of recurrence balanced and nutritious with vitamins, minerals, and trace elements, as well as beta carotene and natural antioxidants to support vital functions and boost the immune system 39% chicken easily digestible source of animal protein enriched with taurine an essential nutrients for cats that supports healthy heart and good vision recommended by vets for an effective, therapeutic diet read more about hill’s brand philosophy and products here. Hill’s brand i science plan i prescription diet i snacks