My cat is about 4 years old and I noticed out of the blue he was having some trouble urinating. He would go in the litter pan over 6 times in an hour and only go a few drops at a time. He was also urinating in random places (small small amounts) for no apparent reason which was really out of the norm for him. I was worried he developed a urinary block or at least a urinary track infection so I brought him to the vet asap. Fortunately, it was just a urinary track infection and not a full block. The vet prescribed an antibiotic and an antispasmodic as well as a single dose muscle relaxant. He also prescribed this cat food. He told me most cats who develop urinary track infections will have issues for life and it was a lifelong food to stay on. The food actually works by breaking up crystals, stones, etc that can develop in the cats bladder and prevents them from forming in the first place. I immediately placed my cat on the food and after a few days he was 100% symptom free and hasn't had any urinary issues since. He also likes the food just as much as the previous food we were feeding him. Though my cat's always had dry food, it was nice that it comes in a can food variety as well for a treat every now and then. I will say, as for as the health of m cat, this food was more than 100% perfect. The few downsides, the food does NOT smell good at all. I've always been put off by the smell of dry cat and dog food but this is worse than any other food I've given my pets in the last 20 years. I have to turn my head when I open and close the bag just to bear it. It's also rather pricey compared to the normal cat foods out there which is a bummer. If your cat really has frequent issues with bladder infections though it is well worth it because the expensive price far outweighs the cost of having to bring the cat to the vet multiple times a year for infections or possible surgeries if it develops a full urinary block.