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.

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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

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

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Customer reviews

Teri65
02 Oct 2018

Great product

All my cats like it which is great because cats can be picky. Prevents urinary crystals which can be painful to the cat. I have had a couple of cats in the past with urinary crystals and I'm glad not to go through it again. Glad my current cats don't have to go through it.
Lamb
02 Oct 2018

Works!!!

My cat has terrible urinary problems and has been on this prescription food for years. There have been a few times I have accidentally ran out and he has had to eat normal cat food and he gets a UTI every time. Royal Canin Urinary SO works wonders for our fur baby. It’s defi high calorie and expensive but it’s worth it!!!
willy
02 Oct 2018

I have been feeding this to my cat for several years he loves it and has not had a urinary tract infection since he started this food its great!
Kybamagirl
02 Oct 2018

Started buying it a year ago after almost losing our cat. Now I won't feed him anything else.
Abe2018
02 Oct 2018

Great for my cat's health

Ever since getting bladder stones, my (slightly fat) cat has been on this. It helped get rid of the stones and it has kept them away! I'm so happy to buy him good food to keep him happy and healthy!
Tigard OR Cat Owner
02 Oct 2018

take care of cat

I have been using for 5 years with no urinary problems anymore.
TobyandTuck329
02 Oct 2018

My cats love this stuff!

My oldest cat had so many urinary issues until we started this food. Ever since then he’s been healthy and happy. This food also has changed the fur immensely on my two cats they are shinier and softer than ever. So grateful this food exists!!
Dinky
02 Oct 2018

My Cat Loves It!

I've been using this new brand for about 6 months after my vet. recommnended it as a prescription diet. My cat, "Dinky" has had no issue with it and loves it. I'm glad he can still enjoy eating while staying on a strict diet.
lauren5
02 Oct 2018

Great food!

My cat has eating this food for a while now. He genuinely likes it and has had no urinary issues since being on it. It definitely makes him drink more water which is a plus. I actually see him drink from his water fountain! He unfortunately does not like the wet version at all. He wouldn't go near it. Thank goodness for the dry food!
Littlemissmuffin
02 Oct 2018

Palatable & Affordable

I bought this product because I wanted a better quality food that would be a preventative for my male cat. It’s wonderful that Royal Canin makes a urinary formula with the S/O index that is low cal, so my male doesn’t gain too much extra weight. I also have a female cat who enjoys this food. I buy the 17.6lb bag & between the two of them, it lasts us 3-4 months! Thank you Royal Canin for making such an exceptional product for my family!!