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

BLADDER HEALTH: Lowers the risk of crystal formation using RSS methodology for dog 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 dog 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 dog food was developed to nutritionally support your adult dog’s urinary tract and bladder health. It increases the amount of urine your dog 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 dogs. Talk to your veterinarian about keeping your dog on this urinary dog food for long-term urinary support. And ask them about the right Royal Canin wet dog food and treats to complement your dog’s diet.

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 veterinary exclusive formulas are 100% satisfaction guaranteed. (Just contact us for more details.)

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

Calorie Content

This diet contains 3741 kilocalories of metabolizable energy (ME) per kilogram or 333 kilocalories ME per cup on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)17.0%
Crude Fat (min)15.0%
Crude Fiber (max)3.7%
Moisture (max)10.0%
Eicosapentaenoic Acid (EPA) (min)0.08%
Docosahexaenoic Acid (DHA) (min)0.05%
Calcium (max)0.75%
Phosphorus (max)0.7%
Magnesium (max)0.08%
Vitamin E (min)350 IU/kg
Lutein* (min)5 mg/kg.

*Not recognized as an essential nutrient by the AAFCO Dog Food Nutrient Profiles.

Dry Feeding

Dog Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/2 cup (41 g) 1/2 cup (47 g) 5/8 cup (54 g)
8.8 lb (4 kg) 3/4 cup (68 g) 7/8 cup (79 g) 1 cup (90 g)
13 lb (6 kg) 1 cup (93 g) 1 1/4 cups (107 g) 1 3/8 cups (122 g)
18 lb (8 kg) 1 1/4 cups (115 g) 1 1/2 cups (133 g) 1 3/4 cups (151 g)
22 lb (10 kg) 1 1/2 cups (136 g) 1 3/4 cups (158 g) 2 cups (179 g)
33 lb (15 kg) 2 1/8 cups (184 g) 2 3/8 cups (214 g) 2 3/4 cups (243 g)
44 lb (20 kg) 2 5/8 cups (229 g) 3 cups (265 g) 3 3/8 cups (301 g)
55 lb (25 kg) 3 cups (271 g) 3 1/2 cups (313 g) 4 cups (356 g)
66 lb (30 kg) 3 1/2 cups (310 g) 4 cups (359 g) 4 5/8 cups (408 g)
77 lb (35 kg) 3 7/8 cups (348 g) 4 1/2 cups (403 g) 5 1/8 cups (458 g)
88 lb (40 kg) 4 3/8 cups (385 g) 5 cups (446 g) 5 3/4 cups (506 g)
99 lb (45 kg) 4 3/4 cups (420 g) 5 1/2 cups (487 g) 6 1/4 cups (553 g)

Mixed Feeding

Dog Weight Cans / Day Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/4 1/4 cup (18 g) 1/4 cup (25 g) 3/8 cup (31 g)
8.8 lb (4 kg) 1/2 1/4 cup (24 g) 3/8 cup (35 g) 1/2 cup (45 g)
13 lb (6 kg) 1/2 1/2 cup (48 g) 3/4 cup (63 g) 7/8 cup (77 g)
18 lb (8 kg) 1/2 3/4 cup (70 g) 1 cup (89 g) 1 1/4 cups (107 g)
22 lb (10 kg) 1 1/2 cup (47 g) 3/4 cup (68 g) 1 cup (90 g)
33 lb (15 kg) 1 1 1/8 cups (95 g) 1 3/8 cups (124 g) 1 3/4 cups (153 g)
44 lb (20 kg) 1 1 5/8 cups (139 g) 2 cups (176 g) 2 3/8 cups (212 g)
55 lb (25 kg) 1 2 cups (181 g) 2 1/2 cups (224 g) 3 cups (267 g)
66 lb (30 kg) 1 2 1/2 cups (221 g) 3 cups (270 g) 3 5/8 cups (319 g)
77 lb (35 kg) 1 2 7/8 cups (259 g) 3 1/2 cups (314 g) 4 1/8 cups (369 g)
88 lb (40 kg) 1 3 3/8 cups (295 g) 4 cups (356 g) 4 3/4 cups (417 g)
99 lb (45 kg) 1 3 3/4 cups (331 g) 4 1/2 cups (397 g) 5 1/4 cups (464 g)
Urinary SO Dry Dog Food

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Customer reviews

Lady Whipplestein
30 Oct 2019

My dog likes it and it’s working!

Happy our dog is on this diet. It’s really helped reduce her urinary stones. She’s happy again!
Timdeb72
30 Oct 2019

Works great

My dog has been eating it for a year. She hasn’t had another bladder stone since. She also loves the taste.
Candylan
30 Oct 2019

My dog loves this food!!!! She always tries to sneak more of it.
Jackie228
30 Oct 2019

Great Food

Even my picky eater loves the food and has remained crystal free
30 Oct 2019

Love that SO

My little dog had bladder stones that almost killed her. The SO is great, we haven't had a problem in 7 years.
MyfavoriteFloridaLawyer
30 Oct 2019

Great product

My Lucy has been on this brand for years. She loves the flavor, and the other pups try to get a nibble. She eats every morsel.
Country Animal Clinic
30 Oct 2019

My Shih Tzu had bladder stones when she was two. My Vet removed the stones and put her on Royal Canin urinary diet. She is no 11 1/2 and has had no recurrence of the bladder stones!
Cyndi8888
26 Oct 2019

Worked for Jake & Nikki

My house broken male dog Jake suddenly started having accidents in the house. This was a huge problem as I live in an apartment and don't have a back yard. After several tests, my vet determined there was nothing physically wrong with him. He put Jake on Royal Canin Urinary SO dog food and cranberry supplements and thankfully and remarkably the accidents stopped. The Urinary SO has a lower magnesium content. It was so great to find a product that really worked and was a huge stress reliever for me and Jake. The product also broke up a bladder stone that my female dog had, thus eliminating the need for surgery. Another huge stress reliever. I highly recommend this product when prescribed by your vet.
Lmq29412
25 Oct 2019

My dog loves it!

We’ve been using this food for almost a year. My dog had severe kidney issues before I adopted her. Since we’ve been on this food, she has only had one kidney infection.
jrmeam45
25 Oct 2019

Great Product

We purchased this per our Vet's request due to was either this or exploratory surgery. We decided to try the food and has worked so no surgery!!