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Royal Canin Veterinary Cat - Urinary S/O

1.5kg
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A complete dietetic dry food for adult cats with lower urinary tract disease. This food has low magnesium levels and can help dissolve struvite stones and reduce recurrence....further information
Royal Canin Veterinary Cat - Urinary S/O - 1.5kg
Royal Canin Veterinary Urinary S/O cat food, packaging with image of a cat and gold-coloured design.
Science-based health nutrition with controlled magnesium, calcium and phosphorus, promotes optimal urinary pH and ion concentration, moderate fat and controlled calorie content.
Product benefits: struvite dissolution, moderate calorie content, urine dilution, and low RSS to help dissolve stones, maintain weight, reduce stone risk, and lower ion concentration.
Analytical constituents: protein 34.5%, fat content 15%, crude ash 8.9%, crude fibres 2.9%, chloride 2%, sodium 1.3%, potassium 1%. Ingredients and additives list shown.
Feeding guide chart for cats by weight and condition, showing daily dry food amounts or mixed feeding with one pouch. Includes separate columns for normal and overweight cats. Water recommended.
Consult your vet to find out which Royal Canin veterinary diet is right for your cat. Veterinary nutrition advice with image of a cat and a person in a white coat.
Formulated for specific dietary support. Urinary crystals can cause bladder stones from excess minerals. Struvite and calcium oxalate stones form in different urine pH. Overweight affects health.
Royal Canin Veterinary Cat - Urinary S/O - 1.5kg
Royal Canin Veterinary Urinary S/O cat food, packaging with image of a cat and gold-coloured design.
Science-based health nutrition with controlled magnesium, calcium and phosphorus, promotes optimal urinary pH and ion concentration, moderate fat and controlled calorie content.
Product benefits: struvite dissolution, moderate calorie content, urine dilution, and low RSS to help dissolve stones, maintain weight, reduce stone risk, and lower ion concentration.
Analytical constituents: protein 34.5%, fat content 15%, crude ash 8.9%, crude fibres 2.9%, chloride 2%, sodium 1.3%, potassium 1%. Ingredients and additives list shown.
Feeding guide chart for cats by weight and condition, showing daily dry food amounts or mixed feeding with one pouch. Includes separate columns for normal and overweight cats. Water recommended.
Consult your vet to find out which Royal Canin veterinary diet is right for your cat. Veterinary nutrition advice with image of a cat and a person in a white coat.
Formulated for specific dietary support. Urinary crystals can cause bladder stones from excess minerals. Struvite and calcium oxalate stones form in different urine pH. Overweight affects health.
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Frequently bought together

Royal Canin Veterinary Cat - Urinary S/O 1.5kg
Royal Canin Veterinary Cat - Urinary S/O 1.5kg
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Product description

A complete dietetic dry food for adult cats with lower urinary tract disease. This food has low magnesium levels and can help dissolve struvite stones and reduce recurrence.

General information:

  • Please seek your vet's advice before using this food or extending the feeding period.
  • When feeding your cat with a veterinary diet you should consult your vet regularly for check-ups.
  • If your cat's health deteriorates please seek veterinary advice immediately. 
Veterinary Health Nutrition. Urinary S/O for adult cats.
If your cat suffers from lower urinary tract disease you can help by feeding it a diet dry food which provides optimal nutritional support for its urinary system. Urinary tract disease can lead to urinary stones (including struvite and calcium oxalate).
Key benefits shown: struvite dissolution, urine dilution, low RSS, and low magnesium for urinary health support. Text: Support your cat's health with Royal Canin Urinary S/O.
Royal Canin Urinary S/O products were developed as an adjunctive treatment for cystitis and urinary stones.
Science-based urinary S/O formula with controlled levels of magnesium, calcium and phosphorus, shown as a single kibble piece and highlighted nutrients.
Indications:
  • Dissolution of struvite uroliths
  • Prophylactic treatment/prevention of calcium oxalate stones
  • Prophylactic treatment/ prevention of struvite stones
Contraindications:
  • Pregnancy, lactation, kittens
  • Chronic renal failure, metabolic acidosis
  • Heart failure
  • Hypertension
  • Parallel use of urine acidifying medication
Key benefits:
  • Struvite dissolution: URINARY S/O helps to dissolve all types of struvite stones.
  • Urine dilution: Diluting the urine makes it less liable to form struvite and calcium oxalate stones.
  • Low RSS: Helps to lower the concentration of ions contributing to crystal formation.
  • Protecting bladder mucosa: Glycosaminoglycan (GAG) is a natural part of the bladder mucosa and protects against bacteria and toxins.

Changing your pet's diet and length of treatment:
Your pet will need to stay on this diet for 5 to 12 weeks, or until the stones are dissolved. It is advisable to feed this diet for a further 6 months to prevent a recurrence.

Further information:
Please ensure that during its illness your pet is fed only with URINARY S/O, otherwise the effectiveness of this product may be reduced.

Therapeutic veterinary diets are carefully formulated and recommended to be used in conjunction with veterinary advice and support. Royal Canin strongly recommend you seek advice from your Vet prior to and during feeding of any of these products to your pet.
Mix dry and wet for an optimal feeding experience. Shows Urinary S/O dry food with Urinary S/O Morsels in Gravy and Urinary S/O Loaf wet food options.

Ingredients

Go to analytical constituents
Ingredients:
Rice, wheat gluten*, dried poultry protein, corn flour, animal fat, hydrolyzed animal proteins, corn gluten, minerals, vegetable fibers, fish oil, soybean oil, fructo-oligosaccharides, marigold flour.
*L.I.P.: Proteins selected for their very high digestibility.

Additives per kg:
Nutritional additives:
Vitamin A (21,500 IU), Vitamin D3 (800 IU), Iron (37mg), Iodine (3.7mg), Copper (11mg), Manganese (48mg ), zinc (136mg), selenium (0.06mg).
Preservatives: antioxidants.

Analytical constituents

protein34.5 %
fat15.0 %
fibre2.9 %
ash8.9 %
calcium0.9 %
phosphorus0.9 %
magnesium0.05 %
chloride2.0 %
potassium1.0 %
sodium1.3 %
sulphur0.9 %

Feeding guide

Feeding recommendation (g/day):

Royal Canin Veterinary - Urinary S/O is a complete dietetic food for cats.
Cat's weight Underweight Normal Overweight
2kg 39g 33g 26g
3kg 52g 44g 35g
4kg 64g 54g 43g
5kg 75g 63g 50g
6kg 86g 72g 57g
7kg 96g 80g 64g
8kg 105g 88g 70g
9kg 115g 96g 76g
10kg 123g 103g 82g
 

Reviews

Royal Canin Veterinary Cat - Urinary S/O - 1.5kg
This is a stars rating area from zero to 5: 4.5/5
Overall Rating (1214)
This is a stars rating area from zero to 5: 5/5
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This is a stars rating area from zero to 5: 4/5
(89)
This is a stars rating area from zero to 5: 3/5
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This is a stars rating area from zero to 5: 2/5
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This is a stars rating area from zero to 5: 1/5
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Top local reviews

7kg
26/07/26|SAli

7kg

This is a stars rating area from zero to 5: 5/5

Life saver

My boycat who is now over 22 years old had crystals formed twice and back then cost me over £200, couple over night stays eating high street dry food- go cat and whiskers. The vets who were amazing advised me to start with this brand which I did. Since 2011 he’s been eating this and not bored of it and still going strong. I Top up with pouches for a variety.
07/02/26|Elaine
This is a stars rating area from zero to 5: 5/5

A game-changer

I've been told by the vet that my cat needs to be on a urinary diet for the rest of his life due to having crystals in his urine. I have struggled massively to get him to eat any other brand of dry urinary food, to a point where I felt he was hardly eating. Royal Canin was my last resort, and what a difference! He absolutely loves it and I can visibly see a difference in him since he has been eating it. Amazing. Strongly recommend.
03/11/25|Tracey
This is a stars rating area from zero to 5: 5/5

Good product

Our cats live this and haven't had urinary issues since using.
17/01/25|A. Burton
This is a stars rating area from zero to 5: 5/5

Prevention !

My elderly boy, has been on Urinary S/O biscuits for some while. They have definitely helped in the prevention of crystals forming again in his urethra, which for him was life threatening.
17/01/25|Lulu Gandy
This is a stars rating area from zero to 5: 4/5

Good but getting pricey

I have both of my male cats on this RC dry food, which they love. It helps or even prevents urine infections that male cats are prone to. The only problem is that the price increases every few months. Not very long ago this bag was £11.99
08/10/24|Lauren
This is a stars rating area from zero to 5: 5/5

Urinary food

Fast delivery. Good size biscuits, my fussy cat loves them. 100% recommended
08/08/24
This is a stars rating area from zero to 5: 1/5

Product change?

My cat has been on this for over eight years with no issues at all but since getting a new bag won’t eat it. When he does try a few he gags on them ! Will be switching him to a different brand
08/12/23|Karen Staples
This is a stars rating area from zero to 5: 5/5

A must have

My cat loves these and it regulates his urinary issues
02/03/23|Natty
This is a stars rating area from zero to 5: 3/5

Has Not Stopped UTI Flare Ups

My female cat has suffers episodes of what im told is a UTI, where the urine turns dark yellow / brown with some blood present. A blood test was taken to rule out kidney disease. They gave her an anti inflammatory injection & an antibiotic. They also recommended a special urinary diet which helps make the PH of urine less alkaline & eliminates crystals. This all helped but after feeding this expensive urinary S/O dry feed for almost a year a flare up has now occured with haematuria present.
28/11/22|rebecca penfold
This is a stars rating area from zero to 5: 5/5

Highly Recommend for Urinary Issues

My cat suffered from blocked bladder problems and a build up of crystals. He spent over 5 days in the vets and overnight in pet hospital when he suffered from his blocked bladder. He had several catheters to help unblock him and flush out the crystal build up. Ever since putting him on this special diet he has has no further problems and has improved so much. This food also encourages him to drink so much more, which helps with his urinary problems.
14/07/22
This is a stars rating area from zero to 5: 5/5

Stops my cats getting infections

My cats used to get infections a lot. Since switching to this, they haven’t gotten any and have been in perfect health. Would recommend.
03/04/22|Shanet
This is a stars rating area from zero to 5: 5/5

Worked for my cat

After an emergency blocked bladder situation that involved a hospital stay, a lot of stress and $$$ I switched to this food. 3 years later, he's not had any bladder issues and don't even think about it anymore. I make sure he gets wet food as well.
04/12/21
This is a stars rating area from zero to 5: 5/5

Life saver!

I really do feel that this food has saved our lovely cats life..he had suffered from struvite crystals 3 times but since we introduced this food into his diet approximately 3 years ago he hasn't had another flare up..fabulous/amazing/wonderful! Happy owners/ healthy cat 😊🐈
11/03/21|Vanessa
This is a stars rating area from zero to 5: 4/5

Great for struvite crystal problems

My two maine coons have been on this diet for 4 years after my female developed struvite crystal problems and had to have surgery. The vet advised to go onto this diet. Although very pricey we havent we stuck to it and never had issues again since. Cats are now over 10 years old.
08/07/20
This is a stars rating area from zero to 5: 5/5

Fantastic product

After several episodes of cystitis that were cleared with medication then an expensive operation to remove a stone my cat has never had another bout of cystitis since I put him on this four years ago. I add a little water into his bowl with his food every morning and night then he has to drink that before he can get to the food. He seems happy enough with it and the re-ordering, service and delivery is so easy
19/06/20|Helen Lever
This is a stars rating area from zero to 5: 5/5

this food keeps my Henry alive and healthy

Henry could not pee. 2 days as an inpatient at vets. they said he needed a low protein diet.. This is perfect for him.Even my other cat Tonks quite likes it although she is really a wet food cat.
04/06/20
This is a stars rating area from zero to 5: 5/5

Simply the best food for the condition- end of discussion!

I have had 2 boys now with struvite crystal problems. My old lad (now deceased) had no problems at all once he was put on this food by the vet, and happily ate it till the day he passed. When my new lad started having the same problem, it was back to this food straight away- then my vet changed her brand... One seriously unhappy boy who starved himself for 10 days rather than eat the new brand. Straight back to Royal Canin for us, and now all I have left in his dish are tiny crumbs... sorted!
12/02/20
This is a stars rating area from zero to 5: 5/5

Brilliant service

Ordered Monday morning, received Tuesday morning, always a very quick efficient service.
26/01/20|Roger Fowler
This is a stars rating area from zero to 5: 5/5

Cat Biscuits

This food is a great help to our cat and excellent service from Zooplus
30/11/19|Carol
This is a stars rating area from zero to 5: 5/5

Used this for 10 years +

Bessie was very poorly, vet suggested Royal Canin and her trouble cleared up, I have kept her on this dry food she has a dish of it down all the time and grazes throughout the day and night. I don’t give her any cat food at all as it’s makes her ill again so she has fresh chicken, cod roes, pilchards, frozen cod portions etc and is 100% clear on this diet.
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