Formulated with a special blend of fibers to promote satiety and reduce the spontaneous consumption of food.

Founded by a veterinarian, Royal Canin has over 40 years experience in Health Nutrition. Our work with veterinarians, pet nutritionists, breeders and cat professionals from around the world has provided us with knowledge about the specific nutritional requirements of cats. This knowledge has allowed us to formulate the precise diet for your cat's special needs.

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Our belief that pets make our world better inspires and gives life to our purpose of making a better A BETTER WORLD FOR PETS ™

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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.

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Chicken by-product meal, tapioca, pea fiber, wheat gluten, corn gluten meal, powdered cellulose, rice hulls, natural flavors, brewers rice, chicken fat, chicory, salt, monocalcium phosphate, potassium chloride, calcium sulfate, fish oil, psyllium seed husk, sodium bisulfate, DL-methionine, 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, copper proteinate, sodium selenite], glucosamine hydrochloride, L-carnitine, chondroitin sulfate, rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

Contains 2904 kcal ME/kg (calculated), 238 kcal ME/cup

Nutrient Amount
Crude Protein (min)32.0%
Crude Fat (min)7.0%
Crude Fiber (max)15.1%
Moisture (max)8.0%
Glucosamine* (min)370 mg/kg
Chondroitin Sulfate* (min)3 mg/kg

*Not recognized as an essential nutrient by the AAFCO Cat Food Nutrient Profiles.

Weight Weight Loss* Post Weight-loss Maintenance
4.4 lb (2 kg) 1/4 - 3/8 cup (23 - 29 g) 3/8 cup (31 g)
6.6 lb (3 kg) 3/8 - 1/2 cup (31 - 39 g) 1/2 cup (41 g)
8.8 lb (4 kg) 1/2 - 5/8 cup (38 - 47 g) 5/8 cup (50 g)
11.0 lb (5 kg) 1/2 - 5/8 cup (44 - 56 g) 3/4 cup (59 g)
13.2 lb (6 kg) 5/8 - 3/4 cup (50 - 63 g) 7/8 cup (67 g)
15.4 lb (7 kg) 5/8 - 7/8 cup (56 - 71 g) 7/8 cup (75 g)
17.6 lb (8 kg) 3/4 - 1 cup (62 - 78 g) 1 cup (82 g)
19.8 lb (9 kg) 7/8 - 1 cup (67 - 84 g) 1 1/8 cups (89 g)
22.0 lb (10 kg) 7/8 - 1 1/8 cups (72 - 91 g) 1 1/8 cups (96 g)

* Your cat's individual feeding amount will be determined and adjusted by your veterinarian during the weight-loss program.

Urinary + Satiety Dry Cat Food

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Customer reviews

Maryncats
12 Sep 2024

Helps keep my cat healthy and stress free

My cat had idiopathic cystitis. He was so close to death. Fortunately between the pet ER and my own vet, he made a full recovery. To help maintain his urinary tract and stress levels, my vet recommended the Urinary SO . Since using, my cat has become calmer and has had no recurring issues. So glad Royal Canin makes it.
Royal Canin response
We are glad to know that your cat is doing well on our Urinary SO formula. Thank you for your feedback!
ecco12
03 Jan 2024

Jennifer and Jeremy
15 May 2023

So far so good!

Feeding both cats. One cat overweight and crystal problems. Expensive but so far it’s been working. Will follow up with review in a years time or sooner if it does not working. But so far after 3 months very happy with eliminating crystals and curving begging for more food.
Plombardi85
22 Dec 2021

Resealable bags are cheaply made!

The last 3 bags I have purchased have had a broken seal for the resealable part of it. Very disappointed considering the food spoils if not sealed and then my cat wont eat it. I have purchased both the SO bag and the Satiety/SO bag and both were defective.
Dee64
28 Oct 2021

My cats love it....

Although I only gave 4 stars this brand works well. Since the new ingredients have been introduced into the food, my cats were getting sick frequently. I then reduced the servings and now there is like no vomiting. I still give them the recommended amount but feedings are a little more frequent throughout the day.
Katlan55
04 Nov 2019

I bought this to help my cat as she pees all over the floor and having this makes her not so it
Tima
03 Nov 2019

Our cat has been on this food for about 5-6 years and is thriving on it!
Willie SD
01 Nov 2019

Good features

I have had my cat (Adult Male named Willie) is on this special diet prescription cat food for the last two years. It is expensive but has helped him lose weight from 18LB to 9.5LB. It has helped him with his urinary track issues. High Ash and he is not quite satiated. He will cry for more after eating his portions.
Chaz411
31 Oct 2019

No more crystals

We have been this food exclsivley to our kitties for the last 6 years. Thankfully, no more bladder obstructions or crystals
Jenn0427
31 Oct 2019

Great quality food

I feed this food to my cats after my vet recommended this product! My cats love the taste and have no additional health problems since.... my cats are picky and they love this food.