My cat was causing a little bit of trouble around the house. It seems he was trying to tell us he was in pain. We took him to the vet and we found he had crystals in urine. They perscribed this food. What a difference. Within a week my cat seems much happier and isn't getting into trouble anymore. The food is meant for cats with crystals in there urine. The only con is its more expensive then the food we were buying before and we also seem to only be able to buy it at the vets office.