Because of their origins, cats are natural water-savers. They concentrate their urine to minimise the amount of water they excrete, which can cause a build-up of urinary stones. The UT Balance Paste contains ingredients that react with phosphorous and oxalates in the gut. Phosphorous and oxalates are found in some urinary stones. The UT Balance Paste thus helps maintain healthy urine and can be fed to cats as part of their normal diet.