HELPS PREVENT STONES: Specialized adult cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones

WEIGHT MANAGEMENT: Low calorie cat food (10% less calories than Royal Canin Urinary SO Dry Cat Food) for ideal weight maintenance

BLADDER HEALTH: RSS methodology for cat bladder health helps lower the risk of crystal formation

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

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. Moderate calorie content (10% less than Royal Canin Urinary SO dry cat food) helps them maintain a healthy weight. 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. 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.

Calculate

Chicken by-product meal, brewers rice, corn, corn gluten meal, powdered cellulose, wheat gluten, natural flavors, chicken fat, salt, fish oil, potassium chloride, calcium sulfate, egg product, sodium bisulfate, vegetable oil, sodium pyrophosphate, DL-methionine, fructooligosaccharides, monocalcium phosphate, 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], taurine, 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.), L-carnitine, rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3277 kilocalories of metabolizable energy (ME) per kilogram or 275 kilocalories ME per cup on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)32.0%
Crude Fat (min)9.0%
Crude Fat (max)13.0%
Crude Fiber (max)9.3%
Moisture (max)8.0%
Calcium (max)1.4%
Phosphorus (max)1.3%
Magnesium (max)0.08%.

Dry Feeding

Cat Weight Low Activity Medium Activity
4.4 lb (2 kg) 3/8 cup (29 g) 3/8 cup (36 g)
6.6 lb (3 kg) 1/2 cup (39 g) 5/8 cup (49 g)
8.8 lb (4 kg) 5/8 cup (48 g) 3/4 cup (60 g)
11 lb (5 kg) 5/8 cup (56 g) 7/8 cup (70 g)
13.2 lb (6 kg) 3/4 cup (64 g) 1 cup (80 g)
15.4 lb (7 kg) 7/8 cup (71 g) 1 cup (89 g)
17.6 lb (8 kg) 7/8 cup (78 g) 1 1/8 cups (98 g)

Mixed Feeding

Cat Weight Cans / Day Low Activity Medium Activity
4.4 lb (2 kg) 1 1/8 cup (10 g) 1/4 cup (19 g)
6.6 lb (3 kg) 1 1/4 cup (20 g) 3/8 cup (32 g)
8.8 lb (4 kg) 1 3/8 cup (29 g) 1/2 cup (44 g)
11 lb (5 kg) 1 1/2 cup (37 g) 5/8 cup (56 g)
13.2 lb (6 kg) 1 1/2 cup (45 g) 3/4 cup (67 g)
15.4 lb (7 kg) 1 5/8 cup (52 g) 7/8 cup (77 g)
17.6 lb (8 kg) 1 3/4 cup (59 g) 1 cup (87 g)
Urinary SO Moderate Calorie Dry Cat Food

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Customer reviews

irie43
01 Jun 2016

Ridge249
01 Jun 2016

Purrrfect Product

My female cat developed a urinary problem my vet suggested this because she had little crystals developing and causing her serious problems this turned out to be a lifesaver since then she has been her perfect little pussycat
Grandma of 3
01 Jun 2016

Needed for my cat that became very ill with crystals in urine. Now feed to my other 2 as well. Used for past few years and no further problems.
Gracie and Luna
01 Jun 2016

Blessing in Disquise!

We started using this years ago due to a cat that kept getting bladder stones. Today, after about 15 years, we are still using this product on our other cats without any incidences of bladder stones. It also helps in promoting a nice shiny coat.
Jasper93
01 Jun 2016

Saving my cat's life. Jasper loves his food

Prevents urinary crystals from forming so Jasper doesn't have to get Catheterized. He has had Catheters in a few times but not anymore because he eats Royal canin.
BMGR
31 May 2016

Mr. Cloe is a Royal Canin Kitty

My kittens were raised on Royal Canin. My one kitty Mr. Cloe developed crystals some time ago and Royal Canin had formula to help help prevent crystals from reoccuring "ROYAL CANIN® - Royal Canin Veterinary Diet ® Feline Urinary SO ® Moderate Calorie dry cat food" I am happy to say Mr. Cloe is doing great on this formula and no more crystals. Mr. Cloe's sister sister Miss Zoe also likes this formula. Thanks Royal Canin my kitties are very happy and healthy.
Hammondbn
31 May 2016

Cat loves it

We've been using this for a few years now and no urinary tract issues since.
lonewolf72
30 May 2016

I feed it to all 3 of my cats and they still like it after 2 years
tiggy
30 May 2016

Meows love it!

My kitties have been on this for 2-3 years and they love it. I was worried they wouldn't eat the moderate calorie formula, but they like it even better than the regular formula.
Stubstub
30 May 2016

Cat loves it and it cleared up his kidney stones

My cat loves this food, and it cleared up his kidney stones.