Kattovit urinary struvite stone prophylaxis is a complete feed for cats suffering from diseases of the lower urinary tract flutd feline lower urinary tract disease is a common disease that is often associated with the formation of extremely unpleasant struvite stones which in turn can lead to secondary diseases of the kidney this feed therefore contains only a very low content of magnesium which can help prevent such problems low magnesium content in food can reduce the amount of minera