Helping cats and dogs live their healthiest lives.
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Vet Products

Hydrolyzed protein, composed of low molecular weight peptides, is highly digestible and minimizes signs associated with food sensitivities.

Founded by a veterinarian, Royal Canin has over 40 years experience in Health Nutrition. Our work with veterinarians, pet nutritionists, breeders and dog professionals from around the world has provided us with knowledge about the specific nutritional requirements of dogs. This knowledge has allowed us to formulate the precise diet for your dog’s special needs.

Brewers rice, hydrolyzed soy protein, chicken fat, natural flavors, dried chicory root, salt, vegetable oil, pea fiber, fish oil, calcium sulfate, potassium chloride, sodium silico aluminate, monocalcium phosphate, fructooligosaccharides, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, D-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, vitamin B12 supplement, folic acid], choline chloride, DL-methionine, N-butyric acid, trace minerals [zinc proteinate, zinc oxide, manganese proteinate, manganous oxide, copper sulfate, ferrous sulfate, sodium selenite, copper proteinate, calcium iodate], GLA safflower oil, marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3592 kilocalories of metabolizable energy (ME) per kilogram or 327 kilocalories ME per cup on an as fed basis (calculated).

Crude Protein (min) 18.0%
Crude Fat (min) 13.0%
Crude Fiber (max) 4.0%
Moisture (max) 10.0%

Dog Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/2 cup (42 g) 1/2 cup (49 g) 5/8 cup (56 g)
11 lb (5 kg) 7/8 cup (84 g) 1 1/8 cups (97 g) 1 1/4 cups (111 g)
22 lb (10 kg) 1 1/2 cups (141 g) 1 3/4 cups (164 g) 2 cups (186 g)
33.1 lb (15 kg) 2 1/8 cups (191 g) 2 3/8 cups (222 g) 2 3/4 cups (252 g)
44.1 lb (20 kg) 2 5/8 cups (238 g) 3 cups (275 g) 3 3/8 cups (313 g)
Royal Canin Veterinary Diet Canine Urinary SO + Hydrolyzed Protein Dry Dog Food

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Customer reviews

07 Sep 2019

My dog loves it so far but it's only been a week

My dog does love this food but it was nearly impossible to find and I had to drive like 45 min to get it I called all the vets around and anyone who sold vet diet food
05 Sep 2019

Great product but it seems almost impossible to get all the time. Banfield at Petsmart prescribes this for our Peek-a-Poo but it's getting harder and harder to find.
Alma P
18 Nov 2018


My Dalmatian has done well on it. She is 10 years old and in excellent health.
30 Oct 2018

Love this product!

My Bichon had surgery for stones. Afterwards, our vet put Teddy on this special food. He has done very well since.
07 Oct 2018

It works

I have used this on my Mini-Schnauzer for 9 years, and never a relapse!
03 Oct 2018

Works like a Charm

My veterinarian recommended this food for my Australian labradoodle. Seems to be working well for her urinary and allergy issues. I also make her dog treats with it and it is great for that. She seems to like the flavor too.
03 Oct 2018

Works well.

My dogs been in it for about a year. Loves the taste. And is helping her allergy symptoms. Also hasn’t had a bladder infection since being on this product. Work at a vet clinic and recommend royal canin products all the time. Great company that backs their products.
03 Oct 2018

My dog was diagnosed with beginning stages renal failure in March 2018. He is a yellow lab with severe food allergies. We started feeding this food in the beginning of April 2018. He just had another blood panel done the end of September and his numbers have improved!! Our vet was so excited. It is clearly the food as that is the only change we have made. We would highly recommend this food!!!
03 Oct 2018

It works!!

Changed my very sensitive stomach GSD to this after finding crystals in his urine over a year ago. Best food he’s had in his 5 years.... no more crystals and perfect fecal scans! Thank You, Royal Canin!!
03 Oct 2018

Urinary moderate calorie

I’ve had my Jack Russell on this diet for 8 years and he is doing so well...his weight is stable and his protein is within the correct range. Plus he must like the taste because he can’t wait for meal time... and as a treat I sometimes give him canned, same formula!