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Royal Canin Veterinary Diet Feline Urinary SO Adult Dry Cat Food, 17.6 lbs.

Royal Canin Veterinary Diet Feline Urinary SO Adult Dry Cat Food, 17.6 lbs.

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This product requires approval from your pet’s veterinarian.


Weight
7.7 LBS
17.6 LBS
Free Shipping $35+
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Description

Support your adult cat's bladder and urinary tract health with Royal Canin(R) Feline Urinary SO Dry Cat Food. This veterinary-exclusive cat food dry formula helps promote a urinary environment unfavorable to the formation of struvite and calcium oxalate crystals. By helping to increase the amount of cat urine your feline produces, this cat dry food helps with the dilution of excess minerals that can cause crystals and stones. Relative Super Saturation (RSS) methodology is used to help lower ion concentration in your cat's urine, which contributes to stone formation. Mix with your cat's complementary Royal Canin Urinary SO Wet Cat Food to give them a texture that pleases even the finickiest eater. Lower urinary tract issues may be a recurring concern for some cats. Talk to your veterinarian about keeping your cat on this urinary cat food for long-term urinary support. Promote your cat's overall wellness with each serving of Royal Canin Urinary SO cat food formula.

  • - CATS WITH URINARY CONCERNS: Royal Canin Urinary SO is a veterinary-exclusive urinary cat food dry formula for adult cats with urinary health concerns
  • - HELPS DISSOLVE STONES: Specialized urinary tract cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones
  • - BLADDER HEALTH: Royal Canin Urinary SO cat food uses RSS methodology for cat bladder health to help lower the risk of crystal formation
  • - S/O INDEX: The exclusive S/O Index creates an environment unfavorable to crystal formation in your cat's bladder to support urinary health
  • - HELPS PREVENT STONE REOCCURRENCE: Healthy cat food with a reduced level of magnesium to help prevent struvite stones from reoccurring
  • - QUALITY AND SAFETY: Attention to the very smallest details during the formulation and production process helps Royal Canin deliver precise and effective health nutrition for pets
  • - THIS BAG CONTAINS 87 CUPS OF FOOD: Refer to the packaging for daily feeding guidelines and to establish your shipping schedule!

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

Specifications

SKU2686350
LifestageAdult
Primary FlavorOriginal
Primary BrandRoyal Canin Veterinary Diet
Days to ShipShips Within 2-5 Business Days
Weight17.6 LBS
Grain FreeNo
Personalized Item flagYes
Primary FlavorOriginal
LifestageAdult
Length5 IN
Height27 IN
Width15 IN
Breed SizesMost Sizes

Chicken by-product meal, brewers rice, corn, corn gluten meal, chicken fat, wheat gluten, natural flavors, wheat, salt, powdered cellulose, fish oil, potassium chloride, sodium bisulfate, calcium sulfate, sodium pyrophosphate, vegetable oil, fructooligosaccharides, choline chloride, vitamins (DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, biotin, riboflavin supplement, D-calcium pantothenate, pyridoxine hydrochloride (vitamin B6), vitamin A acetate, thiamine mononitrate (vitamin B1), vitamin B12 supplement, folic acid, vitamin D3 supplement), DL-methionine, taurine, monocalcium phosphate, trace minerals (zinc proteinate, zinc oxide, manganese proteinate, ferrous sulfate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate), marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Crude Protein (min.) 32.5%, Crude Fat (min.) 13.0%, Crude Fiber (max.) 4.0%, Moisture (max.) 8.0%, Calcium (max.) 1.26%, Phosphorus (max.) 1.26%, Magnesium (max.) 0.1%.

With nearly 50 years of scientific research and observation, Royal Canin continues to deliver targeted nutrition to feed every pet's magnificence. Not satisfied? Then neither are we. Our formulas are 100% satisfaction guaranteed. (Just contact us for more details).

For feeding guidelines specific to this product, zoom in on the product image.

Veterinarian authorized products ship only after Petco receives an authorization from your vet. We will not need to reach out to your vet or you if the authorization includes refills. When all available refills are used or the authorization expires, we will reach out to your vet to obtain a new authorization. For new authorizations, we will attempt to reach your vet for a total of 5 days. If your vet does not respond within 5 days, we will then reach out to you for a total of 3 days. If no response is given, the order will then be canceled.

Description

Support your adult cat's bladder and urinary tract health with Royal Canin(R) Feline Urinary SO Dry Cat Food. This veterinary-exclusive cat food dry formula helps promote a urinary environment unfavorable to the formation of struvite and calcium oxalate crystals. By helping to increase the amount of cat urine your feline produces, this cat dry food helps with the dilution of excess minerals that can cause crystals and stones. Relative Super Saturation (RSS) methodology is used to help lower ion concentration in your cat's urine, which contributes to stone formation. Mix with your cat's complementary Royal Canin Urinary SO Wet Cat Food to give them a texture that pleases even the finickiest eater. Lower urinary tract issues may be a recurring concern for some cats. Talk to your veterinarian about keeping your cat on this urinary cat food for long-term urinary support. Promote your cat's overall wellness with each serving of Royal Canin Urinary SO cat food formula.

  • - CATS WITH URINARY CONCERNS: Royal Canin Urinary SO is a veterinary-exclusive urinary cat food dry formula for adult cats with urinary health concerns
  • - HELPS DISSOLVE STONES: Specialized urinary tract cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones
  • - BLADDER HEALTH: Royal Canin Urinary SO cat food uses RSS methodology for cat bladder health to help lower the risk of crystal formation
  • - S/O INDEX: The exclusive S/O Index creates an environment unfavorable to crystal formation in your cat's bladder to support urinary health
  • - HELPS PREVENT STONE REOCCURRENCE: Healthy cat food with a reduced level of magnesium to help prevent struvite stones from reoccurring
  • - QUALITY AND SAFETY: Attention to the very smallest details during the formulation and production process helps Royal Canin deliver precise and effective health nutrition for pets
  • - THIS BAG CONTAINS 87 CUPS OF FOOD: Refer to the packaging for daily feeding guidelines and to establish your shipping schedule!

Please note that the product information displayed is provided by manufacturers, suppliers and other third parties and is not independently verified by Petco.

Specifications

SKU2686350
LifestageAdult
Primary FlavorOriginal
Primary BrandRoyal Canin Veterinary Diet
Days to ShipShips Within 2-5 Business Days
Weight17.6 LBS

Reviews

Rating Snapshot

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5 stars

1544

4 stars

204

3 stars

43

2 stars

32

1 stars

199

Overall Rating

4.4
1580 out of 1783 (89%) reviewers recommend this product

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Customers say

Customers overwhelmingly praise this urinary health food for effectively resolving and preventing urinary tract issues including crystals, blockages, and infections. Many report dramatic improvements after switching, with cats remaining healthy for 5 to 15+ years. Reviewers consistently note their cats love the taste and eat willingly, even picky eaters. Most describe it as life-changing and essential for long-term health. However, some recent users report adverse reactions like vomiting after noticing formula changes, causing concern among long-term customers. Overall, the vast majority consider it highly effective and recommend it.

Most Helpful Favorable Review

Lifesaver for my cat

Nofridays

3 years ago

Several years ago, Jack the cat had a life-threatening situation with bad kidney...

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10 PEOPLE FOUND THIS HELPFUL

Show Reviews:

5

and

4

Most Helpful Critical Review

Never in stock!

TRPEJC

3 years ago

Never in stock to ship. We keep consistently running out of food. Do yourselves ...

Show Full Review

6 PEOPLE FOUND THIS HELPFUL

Show Reviews:

3

2

and

1

Customer Images

Filter Reviews

1 - 8 of 1791 Reviews

231 Ratings-Only Reviews

Annoyed and disappointed

v212

2 months ago
Have been feeding this to 2 cats for 14 years. Last bag I received is larger pieces and obviously different. Both cats turned up their noses and have refused to eat it. Tried mixing it with something else and they ate around it. After 2 days I had to find a new food. Very disappointed that there was no advance warning that the product was being reformulated. Knowing that cats are finnicky and do not like change, this should have been considered before reformulating the food.

Originally posted on royalcanin.com

Sick cats

LT10

5 months ago
Have been feeding for years worked great until the most recent bag made all of my cats sick. Vomit, constipation, dehydration, days without eating any foods. Thousands in vet bills to rule everything else out. Will not be going back after this.

Originally posted on royalcanin.com

Formula change caused constant vomiting.

Illy13

6 months ago
My cats have been on this food for two years without issue. Then, suddenly we get a bag in September 2025 and they are throwing up after EVERY MEAL. This went on for two weeks while we tried adjusting the amount, we talked to our vet, we took them in for blood work to rule out illness. They were perfectly healthy, but they were losing weight fast. So we realized the formula must've changed without any word. We changed them to the Purina pro plan and the vomiting stopped and they have now gained the weight back and are perfectly happy and healthy. So thank you Royal canin for the hundreds spent on vet bills and carpet cleaning as well as a month of extreme anxiety.

Originally posted on royalcanin.com

Keep them healthy

Mary Ann

8 months ago
Started this years ago when one of my 6 cats had a urinary infection. It’s been good for them all since then. Advice is to keep it well sealed in its bag to keep it fresh. They can tell the difference.

Yes, I recommend this product.

Helpful?

Vomiting

MoLouisCat

9 months ago
My two adult cats have been eating this food without problems, until recently, since 2017. The most recent bag of food caused a myriad of problems for our two cats, that sadly took about a month and a half for us and the vet to diagnose. Both of our cats were throwing up almost EVERY TIME they ate. As a result, they were also eating less, which was concerning for our smaller cat, and clearly impacted their energy levels. Both our cats have other, differing health problems, so unfortunately it took us weeks to discover it was the food that caused their vomiting. Right after we switched to Hills, both cats stopped vomiting after every feeding, had appetite, and their spunk back. I feel terrible that they both suffered for about six weeks until we learned it was the food causing their sickness. Reading other reviews here and elsewhere online helped me diagnose the cause and I am astounded that RC has not had to report their formulation changes.

Originally posted on royalcanin.com

Vomiting

Bingo123

9 months ago
A day doesn’t go by without my cat vomiting. I believe something has changed in the ingredients. Looking for an alternative diet.

Originally posted on royalcanin.com

Good cat food

Elsy

9 months ago
My cat had urinary problems. This food cured the problem

Originally posted on royalcanin.com

New formula causing illness immediately

Cm0311

9 months ago
Immediate vomiting and diarrhea. 2 different cats experiencing it with this new bag just opened today. Have been fine on this food for 3+ years. What's going on with this new formula? Pulling asap.

Originally posted on royalcanin.com

1 - 8 of 1791 Reviews

Questions

1 - 3 of 3 Questions

Just Looking for cat ROTAL CANIN RENAL SELECT

    How big are the pieces of dry food?

    1. The kibbles are about the size of a regular M&M



    Expiration date or 'best by' date please?

    1. Best by is a sell date



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