Royal Canin Veterinary Diet Urinary SO Loaf Pate Adult Wet Cat Food, 5.1-oz can, case of 24

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About This Item

Details

  • This veterinary-exclusive wet cat food is specially formulated for adult cats with urinary health concerns.
  • This specialized cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones.
  • Uses RSS methodology for cat bladder health to help lower the risk of crystal formation.
  • Creates an environment unfavorable for crystal formation in your cat’s bladder.
  • This healthy cat food provides a specialized diet with a reduced level of magnesium to help prevent struvite stones from reoccurring.

Ingredient Information

Feeding Instructions

FAQ

Learn More About Royal Canin Veterinary Diet From Our Team of Experts

About Royal Canin Urinary Health for Cats

Royal Canin, incredible in every detail.  Tailored nutritional solutions for urinary health.

Worried About Your Cat’s Urinary Health?

Your veterinarian is the expert on your cat’s health, so you should always consult with this trusted advisor to find the best urinary health solutions for your pet. Royal Canin works closely with veterinarians to develop cat formulas that help support urinary tract and bladder health.

How Can Nutrition Help?

Your veterinarian may recommend a Royal Canin Urinary formula for your cat. These special formulations can:

Dilute Urine

This helps your cat urinate more often, which can help minimize time for stones to form.

Lower RSS

RSS methodology predicts urine crystallization and is used to develop diets that reduce the risk of stone formation.

Maintain Balance

A precise mineral balance can also help prevent stones from forming.

Set Up Autoship for Consistent Delivery

Last-minute dietary changes can sometimes upset your pet's stomach. Set your Royal Canin pet food order to Autoship to keep feeding on track and avoid unwanted disruptions.

About Royal Canin

What sets Royal Canin apart is their close collaboration with veterinarians. Through these professional partnerships, they strive to learn everything they can about pet health, including how different formulas perform for different breeds, sizes, lifestyles and therapeutic conditions. Ongoing research and development allows Royal Canin to keep providing the precise nutrition cats need for a range of medical conditions.

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Questions & Answers

42 Customer Questions


When you say 'GEL' is that the equivalent of a pate type food vs. the morsels.

Answer by ChewyJul 02, 2018
Royal Canin Veterinary Diet Urinary SO in Gel Canned Cat Food has a pate texture.

How much do you feed daily to an adult male?

Answer by ChewyMar 18, 2020
Please click on the attached picture for the Feeding Chart to reference. The chart may also be found under the "Feeding Instructions" tab on the product page. This feeding chart is a general recommendation. It can be adjusted for your specific pet when also taking into account their age, activity level, etc. If you are uncertain of the amount, you can always consult with your veterinarian.

My cat is presently on Veterinary Diet Urinary SO but he also eats about a TB of this daily to take medicine, making the can last 5-6 days. No stomach upset, smells fine, but is it too long to store in a 35 degree fridge?

Answer by ChewyOct 16, 2018
Opened cans should be stored in the refrigerator, at temperatures between 40 to 45° Fahrenheit, for a maximum of 5 to 7 days. Any cat or dog food remaining after that time should be discarded.

Is Urinary SO Grain Free?

Answer by ChewyJun 06, 2018
This product is not grain-free.

4.3
Rated 4.3 out of 5 stars
4028 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

80% Positive

Effectiveness

82% Positive

Ingredients

80% Positive

Long-Term Benefits

82% Positive

2242 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 3 out of 5 stars
By Ashley on Jan 12, 2026

Dented cans

I’ve been buying from chewy for the past couple of years and always my shipments came on time or before I was expecting it with the cans fully intact, but this last

I’ve been buying from chewy for the past couple of years and always my shipments came on time or before I was expecting it with the cans fully intact, but this last shipment almost half the cans were dented and I don’t believe it was from shipping, because all the dented cans were at the bottom layer and the dents were in between the cans, you would never know they were dented unless you unpacked them. I counted a total of 10 dented cans out of the 24 pack. Hopefully just a one off, but regardless I will be throwing away the dented cans. :(


Rated 5 out of 5 stars
By Jennifer on Nov 21, 2025

Amazing customer service

I recently placed an order of prescription food for my cat it was an expensive order over $200 I also recently moved to a new state over 1000 miles away from my

I recently placed an order of prescription food for my cat it was an expensive order over $200 I also recently moved to a new state over 1000 miles away from my home town some how even though I had updated my address and set it to ship to my new home it got messed up and it shipped to my old state. I went into an instant panic when I saw it was delivered there cuz after just paying the vet bill for my sick cat I didn’t have the money to reorder it I called customer service and they were so amazing they instantly reshipped the order to my new address no issues at all my baby had his food and his medicine in 2 days after that call. Chewy is truly a blessing I don’t have to pay the vet just to get the food for my baby anymore I can order from them save time and money and have peace of mind that they are going to do right by me the customer


Rated 3 out of 5 stars
By Gayle on Dec 29, 2025

ok

My furry boy has blood in his urine and the vet told me to get this food. So far after 2 weeks no change and he doesn’t love it. He Likes it but I have to add a

My furry boy has blood in his urine and the vet told me to get this food. So far after 2 weeks no change and he doesn’t love it. He Likes it but I have to add a low phosphorus treat to get him to eat sometimes. I also feel like it is not as clean ingredients as other cat foods i’ve used, and is expensive.


Rated 4 out of 5 stars
By Kevin on Nov 29, 2025

Corn?

I have heard that corn as an additive is not normally part of a cats diet. It has also been the focus of concern in some cat aging and health studies at well established

I have heard that corn as an additive is not normally part of a cats diet. It has also been the focus of concern in some cat aging and health studies at well established universities. I am having trouble understanding why this product which is a prescribed food continues to includes corn as an additive? Also, whether RC will provide an alternative without corn among other dubious additives? I want yo give it a higher score, but am disappointed given the limited options. I am considering a switch to Farmina N&D urinary.


Rated 5 out of 5 stars
By Brianne on Jan 14, 2026

Love this Food

Look - this food is expensive and stinky; HOWEVER, my cat meows for it and hasn’t had a crystal in 7 years. I owe so much to this food and so does my boy. But

Look - this food is expensive and stinky; HOWEVER, my cat meows for it and hasn’t had a crystal in 7 years. I owe so much to this food and so does my boy. But it really is stinky.


Rated 1 out of 5 stars
By Rebecca on Dec 28, 2025

Too dry

Simon would not touch this food. I tried adding a small amount of warm water, it didn't help. Chewy was notified and they issued a refund. I ordered the morsels

Simon would not touch this food. I tried adding a small amount of warm water, it didn't help. Chewy was notified and they issued a refund. I ordered the morsels in gravy and my kitty LOVES it, thank you


Rated 5 out of 5 stars
By Paula on Jan 17, 2026

This is a great treat for my cat

I give him the dry food, except for his bedtime snack when he get this and his ground up allergy medicine. He will eat anything it you mix it with this food!

I give him the dry food, except for his bedtime snack when he get this and his ground up allergy medicine. He will eat anything it you mix it with this food!


Rated 5 out of 5 stars
By DONNA on Oct 23, 2025

Vet Results Are In...

...And we have a winner! My 17 year old cat had an extreme amount of crystals in his urine lab result. I was skeptical that a diet change could help much. This food

...And we have a winner! My 17 year old cat had an extreme amount of crystals in his urine lab result. I was skeptical that a diet change could help much. This food helped bring his crystals to zero! In a matter of weeks. The vet just called with the latest lab results that shows this product really does work! He also gets RC SO canned morsels in gravy and RC prescription Dental kibble (that my vet said has the urinary help component in it). I'm not going back to his old food, he likes this pricey-but-works food, very much.


Rated 5 out of 5 stars
By Lindsey on Nov 19, 2025

The cats can't get enough

My Milo ended up with a mighty large urinary blockage. Ever since using this, there had been no further issues and he is drinking water whereas before he would only

My Milo ended up with a mighty large urinary blockage. Ever since using this, there had been no further issues and he is drinking water whereas before he would only drink out of the toilet. The only downside to this product is the price for a working class individual. That is the biggest strain is my finances


Rated 3 out of 5 stars
By Janet on Jan 18, 2026

Won't eat it

My FLUTD cat won't touch any of the SO wet foods. Sniffs it and walks away. He's a super picky eater so that likely has a lot to do with it.

My FLUTD cat won't touch any of the SO wet foods. Sniffs it and walks away. He's a super picky eater so that likely has a lot to do with it.