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

BLADDER HEALTH: Lowers the risk of crystal formation using RSS methodology for cat 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 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. 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 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, chicken fat, wheat gluten, natural flavors, wheat, salt, powdered cellulose, fish oil, potassium chloride, sodium bisulfate, calcium sulfate, sodium pyrophosphate, vegetable oil, fructooligosaccharides, 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], DL-methionine, taurine, monocalcium phosphate, 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.), rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3659 kilocalories of metabolizable energy (ME) per kilogram or 315 kilocalories ME per cup on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)32.5%
Crude Fat (min)13.0%
Crude Fiber (max)4.0%
Moisture (max)8.0%
Calcium (max)1.26%
Phosphorus (max)1.26%
Magnesium (max)0.1%.

Dry Feeding

Cat Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/4 cup (26 g) 3/8 cup (33 g) 1/2 cup (39 g)
6.6 lb (3 kg) 3/8 cup (35 g) 1/2 cup (44 g) 5/8 cup (52 g)
8.8 lb (4 kg) 1/2 cup (43 g) 5/8 cup (53 g) 3/4 cup (64 g)
11 lb (5 kg) 5/8 cup (50 g) 3/4 cup (63 g) 7/8 cup (75 g)
13.2 lb (6 kg) 5/8 cup (57 g) 7/8 cup (71 g) 1 cup (85 g)

Mixed Feeding

Cat Weight Cans / Day Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/2 1/4 cup (16 g) 1/4 cup (24 g) 3/8 cup (30 g)
6.6 lb (3 kg) 1 1/8 cup (15 g) 1/4 cup (26 g) 3/8 cup (35 g)
8.8 lb (4 kg) 1 1/4 cup (23 g) 3/8 cup (37 g) 1/2 cup (48 g)
11 lb (5 kg) 1 3/8 cup (31 g) 1/2 cup (47 g) 3/4 cup (60 g)
13.2 lb (6 kg) 1 3/8 cup (37 g) 5/8 cup (57 g) 7/8 cup (72 g)
Urinary SO Dry Cat Food

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Customer reviews

sryan925
30 Oct 2019

Great Cat Food

I have been using this cat food for my cat since she had crystals in her bladder. It was awful for her with the crystals. She was in pain, and passing blood. Since being on this food, she does not have a problem with crystals. And she loves it!
GreytMom
30 Oct 2019

Cat Love It!

I buy every month. My baby needs it to prevent Chrystals in his urine.
Dsand3
30 Oct 2019

Cats Love it almost as much as the canned food

We actually feed the pate urinary so for our two cats ( one has crystals). I cannot keep both from gobbling it up and crying for more so I supplement during the day with this dry. My cat with crystals could eat this all day if he knew the wet food was lot available! Pricy but so far for 2 years we have had good medical reports. Would not dare switch to any other!! We love it!
Kare
30 Oct 2019

Twinkle toes
30 Oct 2019

My cats love it

It is the most healthy food for him and his sister
Punkin
30 Oct 2019

Great service

Vet recommended; you follow through and send right away.
kodiesmom
30 Oct 2019

Great food for all the cats

My elderly kitty had kidney stones and vet recommended the SO food to disolve. This worked perfectly, she is stone free. I was worried about my other kitties eating but they like the food and vet said it is fine for them also, to promote healthy digestion. I've continued to use this food and am very pleased with results.
brendamcmeel
30 Oct 2019

CajC
30 Oct 2019

My picky cat loves this

My cat went on special diet a few years ago. The urinary so is only thing she would accept.
Stephen N
30 Oct 2019

Urinary SO Has Kept Our Cat Much Healthier!

We started using Urinary SO cat food after our kitty had developed dripping and bloody urine. She had much pain, suffering and expensive testing and treatment. Turned out to be crystals in her urine. Very messy and painful. Feeding our cat only Royal Canin Urinary SO has saved us thousands of dollars in continued vet bills. Most importantly, it has saved our lovely kitty from further suffering! Problem solved with Royal Canin Urinary SO. We couldn't be happier with Royal Canin, since 2011.