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Royal Canin Veterinary Diet Urinary SO in Gel Canned Cat Food, 5.8-oz, case of 24

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Product Description

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

  • Recommended for cats at risk of developing lower urinary tract disease
  • Dissolution of pure struvite uroliths
  • Help prevent struvite, calcium oxalate and phosphate uroliths
  • Provides nutrition that aids in the management of pure struvite uroliths
  • 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
  • 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 49990
  • Royal Canin
Special Diet
  • Sensitive Digestion
  • Prescription Food
  • Adult
Food Form
  • Wet Food
Country of Origin
  • United States

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Important Information


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.).

Customer Ratings & Reviews

Rated 4.6 out of 5 by 210 reviewers.
Rated 4 out of 5 by Good for cat prone to developing urinary struvite crystals. This RC Urinary SO was recommended by our vet because my cat developed multiple crystals in his urine which blocked his urethra. She thinks this may have been from his previous food. He has now been on this food, the wet canned food interchanging with the dry version for almost 6 weeks now and he has not re-obstructed. September 2, 2012
Rated 5 out of 5 by Everybody loves it Had to put one of 9 cats on this food per my vets recommendation, after multiple trips to his office with IFLUTD. With my schedule sequestering the little guy was not probable so everyone got a diet upgrade. I was worried about the change. My older kitty, Cookie took a few days but she came around. The food is absolutely scarfed up with no leftovers like their previous food Natural Balance Ltd Ingredient. The bowls are licked clean. They all LOVE it. Yup it's pricey but vet says they all (I have 3 other males with high ph and previous crystal issues) will be healthier. So there you have it. 4PAWS UP (or 36 in my case) April 15, 2013
Rated 4 out of 5 by So far, so good Like others, I switched my cats to this food after one had surgery for a blockage and stones in his bladder. They had been eating grain-free, human-quality food prior to that, so it took me some time to get past the grains and by-products in this. But if it keeps my boys healthy (when the other food did not), I'm not complaining. One thing to note though is that the ingredient list provided on the description does not match what is listed on the cans--the by-products are actually higher on the list. September 10, 2012
Rated 4 out of 5 by Does the job My cat almost died from a piece of sediment blocking his urethra, but after thousands of dollars in vet bills and trying a few different types of food, he is healthy again. It's unfortunate how expensive this food is, and it doesn't seem to fill him up very well (he acts as if he's constantly starving, even though he gets 2 cans a day, and he is a medium sized cat). However, the week I had to take him off of it because I was out, he got a bladder infection immediately... so, he'll be on this food for the rest of his life. January 3, 2013
Rated 5 out of 5 by SO GOOD MY CAT INHALES IT My name is Ralph..I'm a cat. I love Royal Canin. And it's good for me. Not only do I finish the food in my bowl in record time but when my owner isn't looking I climb into the sink and lick the can and the spoon. April 26, 2015
Rated 5 out of 5 by Cleo loves it! Cleo needed to switch to this food to help her disolve stones in her bladder. She loves the taste and is now stone free. July 20, 2012
Rated 5 out of 5 by Royal Canin Vet Diet SO=So Far, So Good After taking my 11 year old female cat to the vet twice in six weeks for a UTI it was discovered "she" is actually a "he" and had crystals in his urine. The $$ spent for this enlightening info and treatment, steroids, antibiotics and muscle relaxants, and anti anxiety medication, was astronomical. I requested a second opinion and was advised by this Vet that my cat may do well with the Royal Canin Vet Diet SO and no meds. After being on this food for about three months there have been no recurrences of his urinary issue. My fingers remain crossed. I have noticed he, Lillimae, is drinking very little water, but urinating much more. Additionally he really enjoys the Royal Canin and waits patiently for his three, meals per day. His coat is also much shinier. Occasionally I add a tsp of either No Salt Added canned chicken or Low Low Sodium canned Tuna. I am very pleased with this product and will continue to order as needed. Yes it is expensive BUT much less than shelling out several thousand dollars during the year for vet bills. December 20, 2013
Rated 5 out of 5 by This product is great! After my cat had a urinary tract infection and two surgeries to correct the problem, I was so scared that it would reoccur. My vet recommended this food to give him a higher chance of the UTI to not reoccur. It's been one month since the surgery and he is doing great! I contribute that to the food along with the surgery. He loves the food and gobbles it up! I am very pleased with this product and would recommend it to any pet owner dealing with a UTI in a male cat. June 6, 2014
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