Provides nutrition that aids in the management of pure struvite uroliths

Moderate calorie content, 10% less than Feline URINARY SO dry, to help maintain ideal weight.

Relative Supersaturation (RSS) methodology predicts the crystallization potential of urine. RSS is used to develop diets for cats prone to both struvite and oxalate urolithiasis.

Specially formulated to assist in the management of lower urinary tract disease in cats requiring a moderate fat content, or who are more susceptible to weight gain.

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Labrador Retriever adult sitting with its owner outdoors

Brewers rice, chicken by-product meal, wheat gluten, corn flour, powdered cellulose, corn gluten meal, chicken fat, natural flavors, potassium chloride, fish oil, salt, vegetable oil, potassium citrate, vitamins[vitamin A acetate, vitamin D3 supplement, DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, D-calcium pantothenate, riboflavin supplement, pyridoxine hydrochloride (vitamin B6), thiamine mononitrate (vitamin B1), folic acid, biotin, vitamin B12 supplement], fructooligosaccharides, DL-methionine, calcium carbonate, choline chloride, taurine, monocalcium phosphate, trace minerals[zinc sulfate, zinc oxide, manganese proteinate, ferrous sulfate, copper proteinate, calcium iodate, sodium selenite], marigold meal, L-carnitine, rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3305 kilocalories of metabolizable energy (ME) per kilogram or 278 kilocalories ME per cup on an as fed basis (calculated).

Crude Protein (min)32.0%, Crude Fat (min)9.0%, Crude Fat (max)13.0%, Crude Fiber (max)9.0%, Moisture (max)7.5%, Calcium (max)1.25%, Phosphorus (max)1.3%, Magnesium (max)0.08%.

Dry Feeding

Weight Normal Overweight
4.4 lb (2 kg) 3/8 cup (36 g) 3/8 cup (29 g)
6.6 lb (3 kg) 5/8 cup (48 g) 1/2 cup (39 g)
8.8 lb (4 kg) 3/4 cup (59 g) 1/2 cup (47 g)
11 lb (5 kg) 7/8 cup (69 g) 5/8 cup (55 g)
13 lb (6 kg) 1 cup (79 g) 3/4 cup (63 g)
18 lb (8 kg) 1 1/8 cups (97 g) 7/8 cup (77 g)

Mixed Feeding

Weight Can + Normal Overweight
4.4 lb (2 kg) 1 can + 1/4 cup (18 g) 1/8 cup (10 g)
6.6 lb (3 kg) 1 can + 3/8 cup (30 g) 1/4 cup (20 g)
8.8 lb (4 kg) 1 can + 1/2 cup (41 g) 3/8 cup (29 g)
11 lb (5 kg) 1 can + 5/8 cup (51 g) 1/2 cup (37 g)
13 lb (6 kg) 1 can + 3/4 cup (60 g) 1/2 cup (45 g)
18 lb (8 kg) 1 can + 7/8 cup (78 g) 3/4 cup (59 g)
Royal Canin Veterinary Diet Feline Urinary SO Moderate Calorie Dry Cat Food

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Customer reviews

Eefer
09 Nov 2023

Bad Batch? Possibly

My one cat has also been not chewing his food on this bag and vomiting more. Sucks there are not many options for Urinary...Hills made my cats fat instantly. I am going to contact them, person with same comment may want to do the same.
SuzMcD
25 Oct 2023

Bad Batch?

My cats have been eating this for 4 years. This last bag, which I opened last week - one was vomiting for 2 days and now won't touch it. The other one just projectile vomited it all over this morning. This is the first time this has ever happened and I am concerned it's a bad bag.
Judie ann
18 Nov 2022

My cat has been on R. C. Urinary moderate calorie for a while now and all he does is vomit. I thought he was just a piggy as it was whole pieces undigested, but after being concerned I read the reviews and it seems to b a common problem
Cats Rock
05 Jun 2022

No more worries

After my boy plugged, I put him on the S/O. All 3 of my cats eat it and love it.
Stanley
31 May 2022

Good Health Diet

He has been on it for 3 years and is alt mor frisky and very healthy.
Dee64
31 May 2022

Good

My cats love it. Their weight is getting better each time
Catmom23
31 May 2022

My cat loves it!

My vet recommended I start my 10 year old cat on this product. Although she hasn’t developed crystals, she has shown the beginning signs of it. She has only been on this food for about one month, but she really loves the taste and so far has been doing well on it.
Ashleysreview
19 Apr 2022

Makes my cats vomit

My cats vomit daily on this. Unfortunate as it is supposed to help with crystals.
Mad cat mom
16 Apr 2022

THIS WILL MAKE YOUR CAT SICK

Terrible food! Made my cat so sick and puked every time. She would hiss and gag like she was in pain. She got to the point where she'd run and hide if she heard the cat food bag. So obviously I stopped feeding it to her after a couple days of this but almost a month later and she still has random times will she will hiss and gag like there is something wrong with her throat. DO NOT FEED THIS FOOD TO YOUR CAT. Obviously I have taken her to the vet also.
MHJG
18 Sep 2021

One of my cats had urinary issues and the vet recommended RC Urinary SO. She said I could feed it to all my cats...(of course she did because I had to buy it at her clinic and it costs a small fortune when you're feeding it to 3 cats). Shortly thereafter all my cats began puking up the food. Between the three cats there was at least one puke to clean up daily. Horrible. I switched to Hills Urinary dry and wet food and the puking has greatly reduced to once a week. And I can get it at all pet supply stores. Amazing