All urine, including a cat’s, contains crystals. These crystals can be affected by things like hydration and diet. If the cat’s dietary requirements aren’t met, the urinary crystals can form stones, which can lead to a number of urinary tract health issues ranging from relatively minor to very serious. While Royal Canin Urinary Care doesn’t cure urinary tract problems, it can reduce the risk of them arising, through a mineral balance that’s designed to lower the pH level of your cat’s urine. Product details Helps to maintain urinary tract health in adult cats 1-7 years old provides balanced level of minerals to reduce the pH of urine and lessen risk of stones developing assists with maintaining weight.