ROYAL CANIN® Urinary S/O Adult Dry Cat Food

ROYAL CANIN® Urinary S/O Adult Dry Cat Food
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1.5kg

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  • 1.5kg £22.00
  • 3.5kg £36.55
  • 7kg £63.45

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£22.00 to £63.45

Description

ROYAL CANIN® Veterinary Health Nutrition Since 1968, Royal Canin has been following the belief that nutrition plays a key role in supporting the health and wellbeing of cats and dogs. This is why we have designed ROYAL CANIN® veterinary diets around proven nutritional science in partnership with pet professionals and experts, delivering nutrition for pets with specific health needs.

When your cat has urinary health concerns, a tailored and nutritionally balanced urinary health dry cat food can help to ease any discomfort and support good urinary tract and bladder health. ROYAL CANIN® Urinary S/O Dry cat food is specifically formulated with the needs of your adult cat in mind.

This urinary diet for cats is formulated for the nutritional management of cats with lower urinary tract disease and is suitable for cats with:

  • Struvite uroliths: dissolution and management of recurrence.
  • Calcium oxalate uroliths: management of recurrence.

Key Benefits:

  • Urine Dilution - This food helps to dilute your cat's urine, making it less likely for struvite and harmful calcium oxalate stones to form.
  • Struvite dissolution - The nutrients included in this exclusive formula help to dissolve all types of existing struvite stones.
  • Low RSS - ROYAL CANIN® Urinary S/O is developed with Relative Super Saturation (RSS) methodology. The tailored complex of nutrients in this food helps to lower the concentration of ions that play a part in the formation of urinary stones and crystals.
  • Low Magnesium - ROYAL CANIN® Urinary S/O is exclusively formulated with a reduced level of magnesium to further support your cat's overall urinary health.

As part of the ROYAL CANIN® Veterinary Range, it is important that this product is only given to your pet when recommended by a veterinary professional. To cater to the individual preferences of each cat, ROYAL CANIN® Urinary S/O is also available as wet food with morsels in gravy, or in a loaf format. Please ensure you follow the correct rationing amount, especially when mixed feeding.

Please note: ROYAL CANIN® Urinary S/O is not suitable for Chronic Kidney Disease (CKD), heart disease (when sodium restriction is sought), concurrent use of urine-acidifying medication, growth, gestation, lactation.

ROYAL CANIN® URINARY S/O dry is a complete dietetic feed for cats, formulated for the dissolution of struvite stones and the reduction of struvite stone recurrence. Urine undersaturating or metastabilising properties for struvite and/or Urine acidifying properties. RECOMMENDATIONS: It is recommended that advice from a veterinarian be sought before use and before extending the period of use. Feed URINARY S/O dry for 5 to 12 weeks for the dissolution of struvite stones and initially up to 6 months for the reduction of struvite stone recurrence. Water should be available at all times. In older cats, renal function should be checked before recommending ROYAL CANIN® URINARY S/O dry.

Feeding Guide

Cat weight Thin Normal Overweight
- (g) (g) (g)
2 kg 39 g 33 g 26 g
2.5 kg 46 g 38 g 31 g
3 kg 52 g 44 g 35 g
3.5 kg 59 g 49 g 39 g
4 kg 64 g 54 g 43 g
4.5 kg 70 g 58 g 47 g
5 kg 75 g 63 g 50 g
5.5 kg 81 g 67 g 54 g
6 kg 86 g 72 g 57 g
6.5 kg 91 g 76 g 61 g
7 96 g 80 g 64 g
7.5 kg 101 g 84 g 67 g
8 105 g 88 g 70 g
8.5 kg 110 g 92 g 73 g
9 kg 115 g 96 g 76 g
9.5 kg 119 g 99 g 79 g
10 kg 123 g 103 g 82 g

Ingredients

Rice, wheat gluten, dehydrated poultry protein, maize flour, animal fats, hydrolysed animal proteins, maize gluten, minerals, vegetable fibres, fish oil, soya oil, fructo-oligosaccharides, marigold meal.

Additives

Vitamin A: 21500 IU, Vitamin D3: 800 IU, Iron (3b103): 37 mg, Iodine (3b201, 3b202): 3.7 mg, Copper (3b405, 3b406): 11 mg, Manganese (3b502, 3b504): 48 mg, Zinc (3b603, 3b605, 3b606): 136 mg, Selenium (3b801, 3b811, 3b812): 0.06 mg - Antioxidants.

Values reflect only levels added to the formula, not those naturally occurring in components of the diet.

Analytical constituents

Protein: 34.5% - Crude fibres: 2.9% - Fat content: 15.0% - Crude ash: 8.9% - Calcium: 0.9% - Phosphorus: 0.9% - Sodium: 1.3% - Potassium: 1% - Magnesium: 0.05% - Chloride: 2% - Sulphur: 0.9%.

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Reviews (89)

Summary of Reviews for ROYAL CANIN® Urinary S/O Adult Dry Cat Food

Overall 5
Value For Money
Quality
Tastiness
Pet's Opinion
Nutritional Value
89 out of 89 (100%) customers would recommend this product.
5 stars (71 reviews)
4 stars (18 reviews)
3 stars (0 reviews)
2 stars (0 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

Efficient product
Verified Purchase

By Martine MARSHALL on 17 August 2026

Does the job

Customer recommends this product

1 person found this review helpful

He had urine tack infection
Verified Purchase

By Diane Burgess on 6 July 2026

I tried other products but he didn't like them

Customer recommends this product

1 person found this review helpful

Helps contol his urinary crystals
Verified Purchase

By Sandra Macdowall on 28 April 2026

Excellent Ramsay still enjoys it.

Customer recommends this product

1 person found this review helpful

Seems to be affective
Verified Purchase

By Heather Larman on 25 February 2026

Cats seem to like it

Customer recommends this product

1 person found this review helpful

Excellent product that I would thoroughly recommend
Verified Purchase

By Stephanie Smythson on 13 October 2025

Excellent quality dried food for my "old timer" and has continue to keep her in excellent health. She is a fussy eater but loves this food and has no trouble devouring it!

Customer recommends this product

1 person found this review helpful

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Q & A

Below are some recent questions we've received regarding ROYAL CANIN® Urinary S/O Adult Dry Cat Food, including answers from our team.

30 August 2021 at 7:11pm

S/O

Casey

What does S/O mean?

  • VioVet Staff

S/O stands for Struvite/Oxalate as the food is formulated to help clear these forms of stones. It is a veterinary diet that should only be used alongside your vets advice, it's really important to use the right urinary diet as different stones require different diets to prevent or clear. Using the wrong diet can worsen the problem.

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