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

WEIGHT MANAGEMENT: Low calorie dog food (11% less than Royal Canin Urinary SO Dry Dog Food) for ideal weight maintenance

BLADDER HEALTH: RSS methodology for dog 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 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. Moderate calorie content (11% less than Royal Canin Urinary SO dry dog 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 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.

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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

Corn, brewers rice, brown rice, chicken by-product meal, corn gluten meal, powdered cellulose, chicken fat, dried chicory root, natural flavors, salt, wheat gluten, vegetable oil, potassium chloride, 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 oxide, ferrous sulfate, manganous oxide, copper sulfate, sodium selenite, calcium iodate], marigold extract (Tagetes erecta L.), L-carnitine, rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3312 kilocalories of metabolizable energy (ME) per kilogram or 272 kilocalories ME per cup on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)18.0%
Crude Fat (min)9.0%
Crude Fat (max)13.0%
Crude Fiber (max)7.2%
Moisture (max)10.0%
Calcium (max)0.81%
Phosphorus (max)0.7%
Magnesium (max)0.1%.

Dry Feeding

Dog Weight Low Activity Medium Activity
4.4 lb (2 kg) 1/2 cup (39 g) 5/8 cup (47 g)
11 lb (5 kg) 1 cup (79 g) 1 1/8 cups (93 g)
22 lb (10 kg) 1 5/8 cups (132 g) 1 7/8 cups (157 g)
33.1 lb (15 kg) 2 1/4 cups (179 g) 2 5/8 cups (213 g)
44.1 lb (20 kg) 2 3/4 cups (222 g) 3 1/4 cups (264 g)

Dry Feeding

Dog Weight Can / Day Low Activity Medium Activity
4.4 lb (2 kg) 1/4 1/4 cup (24 g) 3/8 cup (31 g)
11 lb (5 kg) 1/2 5/8 cup (47 g) 3/4 cup (62 g)
22 lb (10 kg) 1 3/4 cup (65 g) 1 1/8 cup (89 g)
33.1 lb (15 kg) 1 1 1/2 cup (120 g) 1 7/8 cup (154 g)
44.1 lb (20 kg) 1 2 1/8 cup (171 g) 2 5/8 cup (213 g)
Urinary SO Moderate Calorie Dry Dog Food

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Customer reviews

EMAD
18 Mar 2024

Made my cat sick

My cat was prescribed the Royal Canin SO moderate calorie both wet and dry . She would throw up occasionally after eating the canned . I thought it was her . Purchased elevated slow feeders , she would be ok for a week or 2 then immediately throw up after eating . I reduced the amount , gave her more dry , she was always hungry and looking for food , my vet said she had to stay on it due to one time having crystals when she was at the shelter . She then started to throw up the dry . I checked reviews on this food and apparently that is a common side effect and the quality of food and ingredients are not good . I refuse to give this to her . I found a better food , non prescription for urinary that she likes . It’s a shame you can’t put better ingredients in this especially for the price you charge
Marjorie
07 Mar 2024

Use the loaf as the morsel is high in calories.

It keeps our dog crystal free! He receives no other foods at all other than the dry food. He was laden with surgery twice in 3 months before he was 100% free of any other foods! Thank you to our great vet also.
Royal Canin response
We are very happy to hear that our product has worked great for your dog. Thank you.
Mare13
19 Jan 2024

No longer better

I've been feeding this product to my dog for over six years. He suffered from calcium oxalate stones. I had tried Hills CD and he hated it. Come to find out it only had chicken byproducts and chicken flavor. I researched and found your product. It had actual chicken in it and not just chicken byproducts. I tried your food and he loved and has been eating it ever since. But I noticed shortly after covid he wasn't as eager to eat your product. I did a little research and found your product no longer had just chicken but now included chicken byproducts. He continued eat it so I didn't become to concerned. I found lately he really didn't eat your product well anymore so I looked up the ingredients and found you no longer have chicken in you product just chicken byproducts. Now your product is no longer better then your competition. I will no longer recommend your product over your competition. Your product has now become equal to and not better then your competition...
Royal Canin response
I am very sorry you feel that way. Misinformation about by-products in pet food is widespread, and has resulted in many misconceptions. The Association of American Feed Control (AAFCO) defines chicken by-products as the ground, clean parts of the chicken, which include internal organs, bone/cartilage and other parts.  Royal Canin only uses high-quality by-products such as hearts, livers and lungs and when processed properly, by-products provide valuable nutrients for the pet. They are excellent sources of quality protein, vitamins and minerals and can help contribute to a balanced nutritional profile.   Using whole chicken includes, water fat and bone. It's only around 85% digestible. Chicken meal or chicken by-product meal is simply the meat with the water and fat removed so it's over 90% digestible. Ingredients are labeled in order according to the weight of that ingredient prior to cooking. Most starches will be heavier than the protein we use because the protein is typically hydrolyzed or dehydrated in to a powder form.
Alien
05 Jun 2023

Frenchy Lola
02 Jun 2022

Frenchy Favorite

Lola the frenchy has issues with calcium oxalate stones and this food has proven to be extremely beneficial to her well being. She has had 2 surgeries for stone removal and since being on this food we have been able to manage her condition. She also loves the Urinary SO treats and loaf. Keep up the good work Royal Canin. We would be lost without this product.
Terry39
04 Jun 2021

This product does exactly what it says for my pet!

I have been using this for several years now. Molly loved it the first time I gave it to her and still does.
SALTY
12 Feb 2021

Tasty

After my small dog had stones my vet put him on this food. Two years later he's doing great
KCharHat44
25 May 2020

Formula Change

After only being on the new formula for 1.5 months by Bichon Frise (9yrs) now has tear staining (never been an issue), a yellow muzzle (typically only an issue with food with dye in it), skin allergy issues and intermittent diarrhea. Giving it another week but probably going to start looking for a new food. The old formula never gave her these issues.
Tilleys momma
17 Apr 2020

Formula change. Holy stink!!

Most recent bag, with new image appears to have a formula change. Springer has been on this food for 2 years. Really helped with preventing crystals, but new formula is producing excessive gas that was not a problem with the old formula. PLEASE SWITCH BACK!!! Tilley can clear a room!
PeyPeyy
14 Apr 2020

Formula Changed

Like others who commented, my small breed dog was on the green label for 6 years with no issues. I purchased two bags of the brown label and ever since she has gas, loose stools, and gland issues.