Helping cats and dogs live their healthiest lives.
Sacred Birman kitten stood next to an adult Yorskhire Terrier in black and white.
Vet Products

Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals.

Relative Super Saturation (RSS) methodology predicts the crystallization potential of urine; RSS is used to develop diets that lower the concentration of ions contributing to struvite and calcium oxalate urolithiasis.

Reduced level of magnesium, a natural component of struvite stones.

FOUNDED BY A VETERINARIAN, ROYAL CANIN has over 40 years experience in Health Nutrition. Our work with veterinarians, pet nutritionists, breeders, and cat professionals from around the world has provided us with knowledge about the specific nutritional requirements of cats. This knowledge has allowed us to formulate the precise diet for your cat’s special needs.

Water sufficient for processing, pork by-products, chicken liver, chicken, corn flour, chicken by-products, powdered cellulose, dried egg product, calcium sulfate, guar gum, potassium chloride, salt, natural flavors, carrageenan, fish oil, taurine, sodium tripolyphosphate, vitamins [DL-alpha tocopherol acetate (source of vitamin E), thiamine mononitrate (vitamin B1), niacin supplement, biotin, D-calcium pantothenate, riboflavin supplement (vitamin B2), pyridoxine hydrochloride (vitamin B6), vitamin B12 supplement, folic acid, vitamin D3 supplement], trace minerals (zinc proteinate, zinc oxide, ferrous sulfate, manganous oxide, sodium selenite, calcium iodate), marigold extract (Tagetes erecta L.).

Calorie Content

This diet contains 863 kilocalories of metabolizable energy (ME) per kilogram or 142 kilocalories ME per 5.8 oz can on an as fed basis (calculated).

Crude Protein (min) 6.0%
Crude Fat (min) 3.5%
Crude Fiber (max) 2.0%
Moisture (max) 82%

Weight Daily Feeding
5 lb (2.3 kg) 3/4 can (137 g)
7 lb (3.2 kg) 1 1/4 cans (192 g)
9 lb (4.1 kg) 1 1/2 cans (247 g)
11 lb (5 kg) 1 3/4 cans (302 g)
13 lb (5.9 kg) 2 1/4 cans (357 g)
15 lb (6.8 kg) 2 1/2 cans (412 g)
17 lb (7.7 kg) 2 3/4 cans (467 g)

Royal Canin Veterinary Diet Feline Urinary SO Canned Cat Food

Still have questions about this product?

Find out how to reach us, and get in touch.

Ask a question

Customer reviews

08 May 2019

Excellent product

For a reason unknown my 4 year old female cat, Luna, stopped drinking water from her water bowl. I tried changing the location of the bowl, the amount of water bowls, the bowl itself, and even bought a drinking fountain all with no luck. I’ve had her for 4 years and never saw her have an accident outside her litter box. So as soon as I saw her anxiously pacing around the apartment meowing and straining to urinate on the carpet I knew something had to be seriously wrong. The vet tested her urine and found crystals on the urinalysis and an off balance pH, instructed me to switch her to this diet immediately and eliminate dry food all together. Luna is a very picky eater and absolutely LOVES this food. I now add extra water into her food bowl and mix with the wet food. Vet rechecked her urine after a few weeks on this diet, no more crystals and pH exactly where it should be! She’s been on it for about a year now and we’ve had no urinary issues. I’ve even noticed her coat is shinier and healthier and she’s lost weight since I can more easily control calories versus when I was free feeding dry food.
06 Jan 2019

This Food Works!

Told by a vet that surgery was the answer to the problems experienced by Angel, the Cat, I also tried a sample of Royal Canin Urinary Diet canned food. Within a day or so Angel's problems began to disappear. I continued using this food and Angel has continued to be her prior, normal, healthy self. I'm impressed!
13 Dec 2018

Cat is no longer in pain

I noticed my cat going outside the littler one day and then he start crying out in pain. After making an emergency trip to the vet I found out my cat had an UTI. I noticed he was still going outside of his littler box called the vet and after another vet visit she said his urin was concentrated and told me to use this food. I have been using it every since and never had another problem.
29 Nov 2018

healthy and delicious!

My cat loves this food and his health is better than ever! his fur feels softer and he is active and happy!
13 Nov 2018

Royal Canin Saved Piper’s Life!

My beautiful all white Persian cat was diagnosed with struvite crystals in her bladder at six months of age. Her vet and I try everything to alleviate this painful condition, which turned out to be chronic. Nothing helped except Royal Canin’s Urinary SO. Piper is now 28 months old. We know that she wouldn’t have made it to this point if not for Royal Canin. Urinary SO quite literally saved her life. For that, I could never say thank you enough!
Royal Canin response
Piper is beautiful, thank you for sharing your experience.
08 Nov 2018

Saved my cat's life

Royal Canin literally saved my two year old cat's life. He had urinary blockage from crystals from eating another brand of cat food. The vet put him on royal canin and his crystals went down from nearly 20 to 0 in less than two weeks. My cat only eats royal canin now!
Royal Canin response
Thank you for sharing your success story and pictures. He is adorable!
06 Nov 2018

He loves it !

Our cat Fable has been eating this since April, when he was diagnosed with bladder stones. He loves the taste, and is doing well on it. We have also started him on the Urinary SO dry food.
06 Nov 2018

Great food

My Veterinarian recommended this food for my cat with urinary tract problems and he loves the food and so does my other cat who doesn't have those issues
05 Nov 2018

Boyz love it

We have two male cats. One developed urinary issues so we had to switch to the Urinary SO food. We use both the dry & wet and both cats love it. Dish is always emptied.
05 Nov 2018

Great product!

My cat has chronic unitary tract issues and switched her to this formula from another prescription brand about a year ago. I am happy to report that she has not had one UTI during this time. And, she loves the taste.