Royal Canin Veterinary Diet Urinary SO Morsels in Gravy Canned Cat Food, 3-oz, case of 24

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This prescription item requires vet approval. Details


Lower urinary tract disease (LUTD) refers to a group of disorders that commonly leads to irritation of the urinary tract and corresponding undesirable clinical signs. What causes Lower Urinary Tract Disease? In cats, bacterial infections are far less common. Urinary crystals and stones are often linked to this disease. The most common cause of Lower Urinary Tract Disease in cats is idiopathic cystitis. This diet promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals.

Key Benefits

  • Complete and balanced diet recommended for cats at risk of developing lower urinary tract disease
  • 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.
  • Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals
  • Formula provides nutrition that aids in the management of pure struvite uroliths.
  • Reduced level of magnesium, a natural component of struvite stones

Note: Royal Canin Veterinary Diets require a veterinary prescription. This product will not be shipped until a copy of a valid prescription authorization is faxed to 1-800-619-7973 or e-mailed to

See all items by Royal Canin Veterinary Diet

  • Item Number
  • Food Texture
    Chunks in Gravy
  • Brand
    Royal Canin
  • Food Form
    Wet Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Prescription Food

Nutritional Info


Water Sufficient for Processing, Chicken Liver, Chicken, Pork By-Products, Corn Flour, Chicken By-Products, Dried Egg Product, Corn Starch Modified, Vegetable Oil, Powdered Cellulose, Natural Flavors, Potassium Chloride, Calcium Sulfate, Fish Oil, Sodium Tripolyphosphate, Guar Gum, Taurine, Dl-Methionine, Salt, Choline Chloride, 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, Copper Sulfate, Manganous Oxide, Sodium Selenite, Calcium Iodate), Marigold Extract (Tagetes Erecta L.).

Caloric Content

907 kcal/kg, 77 kcal/3 oz can

Guaranteed Analysis
Crude Protein 5.5% min
Crude Fat 3.5% min
Crude Fiber 1.5% max
Moisture 83.0% max

Feeding Instructions

Weight Daily Feeding (Can)
5 lbs 1 1/2
7 lbs 2 1/4
9 lbs 2 3/4
11 lbs 3 1/2
13 lbs 4
15 lbs 4 3/4
17 lbs 5 1/4

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Customer Reviews

349 reviews 349 Reviews 4.6 out of 5 Stars

94% Recommend

94% of reviewersrecommend this product

4.6 / 5
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  • Have found this diet to be very helpfull in the prevention of struvite crystals

    By on

    The Urinary So diet was recommended to me by my animal companion's Vet. He has been eating nothing else at this point, and it has seemingly kept it under control. Previous vet also recommended DISTILLED water ONLY which one other customer also brought up in a previous review. Totally agree with that piece of information that he/she supplied. Was told it is a very painful condition as if they have glass in their bladder. Would highly recommend this in order to avoid or hopefully prevent future surgeries. So far it has worked for my little guy whose have been on this diet for years now. .

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  • Better choice for my cat

    By on

    My cat was diagnosed with developing crystals. He had to go on a special diet that would help prevent his system from developing crystals. I did buy him the pate (for lack of a better term) form of this canned food. He was just not liking it. I was happy to see that this diet was offered, morsels in gravy. He prefers this more than the other. He eats it up and I can see that he very content with this type of food. Thank you Chewy for providing a choice!

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  • Feline Urinary SO, 3 ounce cans

    By on

    Although this is a necessary product, my cats LOVE it. I was just woken up at 5am by the relentless Spike, since they usually are fed about 3:30am, and it was way past time! He won't stop yowling and walking on me until I feed them. My other kitty loves this too. My vet's network was hacked so they suggested ordering online. My orde was shipped in a reasonable time, and the price was better than my vet's. I'm thinking I may just stick with ordering from Chewy (who responsibly verified my prescription with my vet).

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  • Jem & Jewel

    By on

    My little kitty must have this prescription diet. There was a problem with ordering from our vet clinic, took a very, very long time. Had I not ordered from Chewy, we would have run out of the canned food. We received our order within about 2 days and my baby didn't run out of her special needs canned food. I have a multi-cat household, and both cats love it. Excellent customer service received from Chewy.

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  • Fast delivery, great customer service!

    By on

    We had to switch one of our two cats to Royal Canin Urinary SO to help reduce crystal formation in his ureter (trying to prevent another $1000 surgery). I ordered and the shipment arrived the next day. The customer service representative was very helpful and friendly when I called with a question. Reordering now! Only wish the cost of the food was lower.

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  • The boys loved it!

    By on

    I have 4 male cats; only one of which is required to be on this diet. But we feed them all the same urinary diet. They are not too crazy about most of the other veterinary flavors, but they LOVE this flavor. It's gone almost before I put it in their bowls. Also, since all of them have been eating RC, they have maintained a perfect, healthy weight!

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  • Cat LOVES it!

    By on

    I am so happy that my cat who was put on a prescription diet at the young age of 3 due to bladder stones the size of marbles is able to enjoy her meals. She absolutely LOVES this food and even though there is only one flavor and I thought she'd get bored after a couple days, she still jumps up and tries to eat out of the can before I can get it out.

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  • Perfect for my finicky cat

    By on

    My cat was on the Royal Canin Urinary SO pate canned food and decided she didn't like it anymore. A friend in a similar situation recommended these Morsels in Gravy so I bought a case on Chewy for her to try. From the moment the can was opened, she gobbled the food down. She is now eating again, and I am a very happy Cat Mom. She loves this stuff.

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  • Cat loves his Rx food!

    By on

    I'm so thankful that my cat loves this Rx canned food! He absolutely loves the taste and the gravy. It is very convenient for me to have this shipped to my home. My vet is over 45 miles from my home & with working fulltime, it's really hard to make a special trip for food! I highly recommend this food!!

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  • Mickey loves it

    By on

    My Mickey had to go back on rx food for urinary crystals. He had used the science diet before but would barely eat half a can and refuse to eat the second half. The Royal Canin offered a morsel variety in the small cans, and it is perfect! He loves the bits and no leftover for the picky boy to refuse.

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