Royal Canin Veterinary Diet Adult Urinary SO Dry Dog Food

By Royal Canin Veterinary Diet
Rated 4.6424 out of 5 stars
Veterinary Diet Item


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$111.99Chewy Price
$106.39Autoship Price
(Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

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FREE 1-3 day delivery

This item requires vet authorization.

Frequently Bought Together

Royal Canin Veterinary Diet Adult Urinary Dog Treats, 17.6-oz bag
Rated 4.3877 out of 5 stars
$11.99Chewy Price
Total Price: $236.54

About This Item


  • A veterinary-exclusive dry dog food for dogs with urinary health concerns.
  • Helps dissolve pure struvite stones and helps prevent calcium oxalate stones.
  • Lowers the risk of crystal formation using RSS methodology for bladder health.
  • Supports urinary health with an exclusive S/O Index, and creates an environment unfavorable to crystal formation in the bladder.
  • Helps prevent struvite stones from reoccurring.

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Nutritional Information

Feeding Instructions


Play Video: Learn More About Royal Canin Veterinary Diet From Our Team of Experts
Learn More About Royal Canin Veterinary Diet From Our Team of Experts

About Royal Canin Urinary Health for Dogs

Worried About Your Dog’s Urinary Health?

Your veterinarian is the expert on your dog’s health, so you should always consult with this trusted advisor to find the best urinary health solutions for your pet. Royal Canin works closely with veterinarians to develop dog formulas that support urinary tract and bladder health.

How Can Nutrition Help?

Your veterinarian may recommend a Royal Canin Urinary dog food formula for your best friend. These special formulations can:

Dilute Urine

This helps your dog urinate more often, which can help minimize time for stones to form.

Lower RSS

RSS methodology predicts urine crystallization and is used to develop diets that reduce the risk of stone formation.

Maintain Balance

A precise mineral balance can also help prevent stones from forming.

Set Up Autoship for Consistent Delivery

Last-minute dietary changes can sometimes upset your pet’s stomach. Set your Royal Canin pet food order to Autoship to keep feeding on track and avoid unwanted disruptions.

About Royal Canin

What sets Royal Canin apart is their close collaboration with veterinarians. Through these professional partnerships, they strive to learn everything they can about pet health, including how different formulas perform for different breeds, sizes, lifestyles and therapeutic conditions. Ongoing research and development allows Royal Canin to keep providing the precise nutrition dogs need for a range of medical conditions.

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Top IngredientsBrewers Rice, Corn, Chicken Fat...Potato, Rabbit Meal, Coconut Oil...Corn, Brewers Rice, Brown Rice...Chicken By-Product Meal, Barley, Corn Gluten Meal...Chicken By-Product Meal, Brown Rice, Corn...
Breed SizeSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All BreedsSmall Breeds, Medium Breeds, Large Breeds, All Breeds
Special DietVeterinary Diet, Pea-Free, With GrainLimited Ingredient Diet, Veterinary Diet, Pea-Free, Chicken-FreeVeterinary Diet, Pea-Free, With GrainLow Glycemic, Veterinary Diet, Pea-Free, With GrainSensitive Digestion, Veterinary Diet, Pea-Free, With Grain
Food FlavorPoultry, ChickenMeat, RabbitPoultry, ChickenPoultry, ChickenPoultry, Chicken
Health FeatureUrinary Tract HealthDigestive Health, Skin & Coat HealthUrinary Tract Health, Weight ManagementDiabetic Support, Digestive Health, Weight ManagementDigestive Health, High-Energy
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

Questions & Answers

38 Customer Questions

I see that this product has corn ,corn gluten meal and wheat gluten. Please let me know if this is bad for my dogs stomach and does these products have any effects on her life span?
Answer by BethanyAug 03, 2023
These ingredients are just fine for your dog unless they have a grain allergy. Dogs that have food allergies are usually affected by the proteins (chicken, beef, lanb, etc) and not by the grain. Unless your vet has to you to only feed grain free, these ingredients are just fine for your dog. Also, many grain free diets have been linked to heart disease and other issues, so unless you HAVE to, do not feed a grain feed diet to your dog.

Do you carry this for small dogs
Answer by ChewyJun 13, 2018
Royal Canin does offer a small breed formula called Royal Canin Veterinary Diet Urinary SO Small Breed Dry Dog Food.

Hi I just want to know if this food is grain free??? My dogs love it but they scratch and chew at there selves all day long. When will it be available grain free????
Answer by ChewyMar 26, 2018
This formula contains grains.

Does this food increase urination in your dog? If so, is that healthy?
Answer by ChewyJan 04, 2018
This Food is a complete and balanced Veterinary Diet for adult dogs formulated to aid in the nutritional management of calcium oxalate and struvite urolithiasis. Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals.

ReviewsWrite a Review

Rated 4.6424 out of 5 stars
1317 Ratings
Would recommend to a friend

1317 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 4 out of 5 stars
By sms75 on Sep 19, 2023

Great Food, But Expensive

My GSD/Border mix, Sasha, was put on this food after emergency surgery for struvite bladder stones at almost 4 yrs of age.When she was nearly 14 (in 2020), the formula changed slightly (increase in % fat), & she developed pancreatitis. My vet recommended mixing this food with a lower fat food (Blue Buffalo Healthy Weight) & put her on a liver support supplement. In 3.5 months, her blood work was back to normal. I lost my girl in Dec 2021 at age 15.5, & she ate this food for nearly 12 years of her life. I am back checking the price due to the possibility that one of my new rescues (Old English/? mix) may have to be put on this as well. I can't believe how much the price has increased in less than 2 years. From Dec 2021 until now, it has increased nearly $22 for the 25.3 lb bag. When I first started using this food in 2010, it was barely $50. I can't argue with the results - my Sasha never had an issue with crystals/stones for the rest of her life. However, just like everything else, the price has skyrocketed. Soon, the average person won't be able to afford to feed a pet, especially if that pet has a health issue.

Rated 1 out of 5 stars
By kat on Jul 26, 2023

Dog, dry food urinary SO

A long history of utis, a couple encounters with crystals but no stones we tried Royal Canin this time and hoped to just remain on it since she won't eat science diet urinary. She cleared the crystals in a month and her oh went up to 6 (she has hx of low pH). Just opened the 2nd bag and after a couple of days she had abnormal panting/heavier breathing and wet the bed 2xs in 1 day (huge wet spots) even after being let out more due to increased thirst and output. She had no clue it was happening in her sleep. This is a 6yo lab that's well house trained. I immediately stopped the food (trying her 6th food to see if we can avoid utis that's not urinary food now). Almost 24hrs and she's slowly feeling better since discontinuing this. panting decreased noticably, she's not laying on her side struggling to get comfortable, and has more interest in her surroundings again so hopeful it didn't cause any permanent issues at least. -nothing like going from one extreme to the next!

Rated 1 out of 5 stars
By KN on Jul 12, 2023

Causes Urinary Incontinence (not just frequent urination)

I don’t write reviews, but this is worth sharing so it doesn’t happen to you. We started giving our Aussie this food due to crystals in her urine and kept her on it for a bit even after the crystals were gone (per our vet’s recommendation). All of a sudden our dog developed a UTI and started peeing herself in her sleep - she has never had issues with either previously - a very healthy senior dog. When the UTI was gone, she was still incontinent and come to find out it’s because of the Urinary SO food. Beware of feeding this to your dog long term.

Rated 3 out of 5 stars
By PupStuff on Jul 19, 2023

Jury's Still Out

Trying to transition my dogs from Hill's Science Diet Urinary + Metabolic to Royal Canin Urinary SO. Both dogs did fine and like Royal Canin but have had trouble with regularity since changing. After 4 days of no go, it's time to see the Vet. Did NOT expect this. Cha-ching! Maybe the Metabolic contained something that stimulated their digestion? If so, even the Vet is unaware. So frustrating!!!

Rated 3 out of 5 stars
By Sassy on Aug 8, 2023

Royal canin

Our little Sassy didn’t care for the Royal Canin urinary. The 3 stars is for the food, Chewy gets 5 plus as always wonderful company.

Rated 5 out of 5 stars
By Pam on Sep 11, 2023

Meets our needs

Our dog had a health issue and limited diet. Our dog was very happy with this food, dry & wet SO diet.

Rated 2 out of 5 stars
By Kaybell11 on Aug 11, 2023

Bag was dampened

This food is great except this one order the bottom of the food in the bag had gotten damp somehow and I had to throw it away.

Rated 4 out of 5 stars
By Meagan on Apr 15, 2023
Top 1000 Contibutor

Only one complaint

My dog enjoyed this food, and it did its job of dissolving struvite crystals. However, I didn’t feel comfortable feeding this food long term as it is preserved with citric acid. When used as a preservative in dry food, citric acid increases the risk for GDV/bloat (Purdue University study). My dog is a Standard Poodle, so he’s already an at risk breed. We fed this food when we had to, but took him off of it after a month. He’s also battled frequent UTIs in addition to 2 instances of struvite crystals, so we are back on Royal Canin SO to see if it helps. The only difference is this time I’m feeding him the canned formula. Both the dry and canned formulas appear to work equally well, but the canned formulas also have the added bonus of providing him with more liquid in his diet which I’m sure helps a little more.

Rated 4 out of 5 stars
By BillS on Apr 25, 2023

Vet recommended

Our vet recommended this for our puppy for a small health issue. problem is that this dog food actually requires a vets prescription to get and as you can imagine a price to match that. None of our local stores carry this, but this is where Chewy shines. They talk to the vet so we don't have to and auto delivery helps us manage when a new bag arrives, plus we get a small discount with auto delivery. We have two dogs and they are transitioning from their old dog food to this and so far seem to like it.

Rated 5 out of 5 stars
By Food on Apr 19, 2023

Go to Brand / Food

Tried this brand out for both of dogs to help aide / prevent medical issues and I’m never going back to any other brand - regardless of the dog! Unless I have to of course. Royal Canin not only helps my pug with his urinary issues but it also stopped his shedding and weight gain! We add a little broth to it to soften the food and he scours it up every time. Love everything about it - highly recommended to everyone!