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.

Working towards a sustainable future

Our belief that pets make our world better inspires and gives life to our purpose of making a better A BETTER WORLD FOR PETS ™

Discover more
Labrador Retriever adult sitting with its owner outdoors
Recyclability Content Block

Where to recycle your Royal Canin packaging?

Explore your local options.

Discover more
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

Still have questions about this product?

Find out how to reach us, and get in touch.

Ask a question

Customer reviews

Serena81
10 May 2016

Actually works

I switched to this after my cat was on Purina UR. My male tabby has issues with urinary crystals, infections and urinating on the floor. After I switched to this he hasn't urinated on the floor since! I'm so happy that this works!
nikkers0323
10 May 2016

amazing product!

my cat loves the taste and since switching to this brand he has not had any issues with his urinary tract or having crystals in his bladder.
orchidchic
10 May 2016

MIRACLE CAT FOOD

Our vet put our cat Fiona on this food after numerous UTI's and surgery to remove stones from her bladder. That was 3 years ago. She hasn't had a problem since! This food is amazing! I starting feeding it to our other cats "just in case". It is expensive, but if it keeps my babies from having UTI's and surgery, I will continue to buy it. It truly is a "miracle food". Just wish all cat owners could afford this food for their "babies". It would keep other cats from suffering with UTI's and surgery. In this economy, so many pet owners must prioritize what to spend their money on. Unfortunately, pets are usually the ones to suffer.
tracyg
10 May 2016

Cats love it

Have been using this for almost a year now no more bladder infections or crystals!
DiDi
10 May 2016

Does what it's supposed to do

I have had my cat on this food for years, started out with the wet food but tried the dry, it was a little less expensive and my cat loves it and she hasn't had any urinary issues since we began this brand.
Gale
10 May 2016

Great everyday reliability

My kitty who had a blocked bladder has been on this for the last 3 years with no problems - Excellent product!
adopter
10 May 2016

Keeps Her Healthy

I have been using this product, as recommended by my vet, to help my kitty with urinary issues for many years. Since she has been on this product, she hasn't had her urinary issues return. She will be 19 this year. Since I have other kitties, they eat the food, too, so the moderate calories keep them from getting too chubby.
luvinlucy
10 May 2016

My cat loves it

My veterinarian started my cat on urinary SO a couple months ago due to chronic urinary tract infections. He loves it. He's doing great and not having any issues now.
stanzie23
10 May 2016

The Best Urinary Cat Food!!!!

My cat has been on this food forever, ever since he was diagnosed. He loves the food and it works great. I tried another brand once and he started having blood in his urine again and was in tons of pain! The moderate calorie also helps him maintain his weight. He has been the same weight for the past three vet visits! It might be a little pricey but it is worth every penny!
Usfivegrls
10 May 2016

Great product

Since feeding to my cat her urinary infections are few and far between