HELPS DISSOLVE STONES: Innovative urinary tract cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones

BLADDER HEALTH: Lowers the risk of crystal formation using RSS methodology for cat bladder health

S/O INDEX: The exclusive S/O Index creates an environment unfavorable to crystal formation in the bladder to support urinary health

HELPS PREVENT STONE REOCCURANCE: Specialized diet, with a reduced level of magnesium, helps prevent struvite stones from reoccurring

When your cat has urinary issues, easing their discomfort requires special care. But with the help of your veterinarian and Royal Canin, there’s not just hope—there can be a true difference.

This veterinary-exclusive dry cat food was developed to nutritionally support your adult cat’s urinary tract and bladder health. It increases the amount of urine your cat produces to help dilute excess minerals that can cause crystals and stones. Relative Super Saturation (RSS) methodology is used to help lower ion concentration in urine, which contributes to stone formation. This formula promotes a urinary environment unfavorable to the formation of both struvite and calcium oxalate crystals. And this specialized nutrition, with a reduced level of magnesium, helps dissolve pure struvite stones and prevent struvite stones from forming. 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. And ask them about the right Royal Canin wet cat food and treats to complement your cat’s diet.

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ContentBlockDailyPortion

Discover our tool that calculates the daily portion for your pet. Fill in your pet's information and you will get their daily feeding recommendation. In case of weight issues, do not hesitate to consult your vet to adapt this portion. Note that this feeding recommendation is more precise than the feeding table, therefore the values may slightly differ.

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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.

Calorie Content

This diet contains 3659 kilocalories of metabolizable energy (ME) per kilogram or 315 kilocalories ME per cup on an as fed basis (calculated).

Nutrient Amount
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%.

Dry Feeding

Cat Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/4 cup (26 g) 3/8 cup (33 g) 1/2 cup (39 g)
6.6 lb (3 kg) 3/8 cup (35 g) 1/2 cup (44 g) 5/8 cup (52 g)
8.8 lb (4 kg) 1/2 cup (43 g) 5/8 cup (53 g) 3/4 cup (64 g)
11 lb (5 kg) 5/8 cup (50 g) 3/4 cup (63 g) 7/8 cup (75 g)
13.2 lb (6 kg) 5/8 cup (57 g) 7/8 cup (71 g) 1 cup (85 g)

Mixed Feeding

Cat Weight Cans / Day Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/2 1/4 cup (16 g) 1/4 cup (24 g) 3/8 cup (30 g)
6.6 lb (3 kg) 1 1/8 cup (15 g) 1/4 cup (26 g) 3/8 cup (35 g)
8.8 lb (4 kg) 1 1/4 cup (23 g) 3/8 cup (37 g) 1/2 cup (48 g)
11 lb (5 kg) 1 3/8 cup (31 g) 1/2 cup (47 g) 3/4 cup (60 g)
13.2 lb (6 kg) 1 3/8 cup (37 g) 5/8 cup (57 g) 7/8 cup (72 g)
Urinary SO Dry Cat Food

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Customer reviews

ash515
22 Oct 2019

Keeps kitty happy and healthy

I adopted a cat who had been returned to the shelter for having crystals in his bladder. When the shelter asked if I would be ok taking him on with his special diet, I wasn’t worried at all because I knew the urinary SO food would make it easy. I was already familiar with it as my previous cat had the same problem. For her, we tried the food to see if that would break up the crystals before doing surgery, and it worked perfectly. My cats have loved the taste, it gets them drinking lots of water, and there hasn't been any issues with crystals as long as they’re on the food. Thank you Royal Canin!
Lisa T
22 Oct 2019

This food saved my cat’s life.

This is the only food my cat can eat that keeps him from having urinary symptoms.
Happy Cat Owner
22 Oct 2019

Fantastic Find

Ever since both my cats have been on this food they have been perfect...no more Dr visits. I'm so happy for them to have no more discomfort.
Crazycatlady817
22 Oct 2019

Awesome Food

Have a cat who has had Urinary problems and since switching to this food per vet recommendation, we have had absolutely no issues!
22 Oct 2019

great for my cat's crystals

Cat is doing so much better on this food. No more messes outside the litter box.
Tiffhm
22 Oct 2019

A Necessity

I have had my cat on Urinary SO for years and it has kept her healthy and out of the vet's office, We are never without!
losteques
22 Oct 2019

My 3 cats are eating this food for more that 3 years, they love and are always healty
Fayesie
22 Oct 2019

Cats Enjoy It

This food was recommended by our veterinarian for our male cat that had a urinary tract infection. He has not had any more urinary tract infections since starting this food several years ago.
layla721
22 Oct 2019

Great flavor

My cat has been on this food for many years and he doesn't get tired of it the way he did other foods in the past.....and it works for his urinary problem!
Amilo1130
22 Oct 2019

Cured my cats bladder crystals

After seeing several vets for my female cats problem w bladder crystals, I didnt have to put her through surgery because of this food. It dissolved the crystals and now she doesn’t deal with them anymore. I’m so grateful she has this food to make her more comfortable!