Updated 21 Aug 2019
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Royal Canin Veterinary Diet Urinary S/O

Type of food

Dry extruded complete

Dog types

Pet dogs

Targeted conditions

Urinary health

Breed sizes

Suitable for toy breed dogs
Adult weight 1-4kg. e.g. Chihuahua, Pomeranian, Yorkshire Terrier
Suitable for small breed dogs
Adult weight 4-10kg. e.g. Beagle, Dachshund, Jack Russell
Suitable for medium breed dogs
Adult weight 10-25kg. e.g. Border Collie, Staffie, Springer, Vizsla
Suitable for large breed dogs
Adult weight 25-45kg. e.g. Boxer, Labrador, Greyhound
Suitable for giant breed dogs
Adult weight 45kg+ e.g. Bernese, Great Dane, Mastiff

Dog ages

From 12 months to old age

Pack sizes

2kg, 7.5kg & 13kg bags


13kg bags = £86.00


Veterinary diet: This food is specifically formulated for dogs with a particular health problem. Be sure to consult with your vet before feeding this food.

For the management of severe or short term illness, we recommend following your veterinarian's feeding advice, regardless of the rating we have given their recommended food.

For longer term and more mild illnesses, however, there are generally other options that are worth considering.

Click here for more info.

AADF rating


At a glance

Not natural: Contains some added artificial preservatives, antioxidants, colourings, flavourings and/or other controversial synthetic ingredients
Not high in meat: Contains less than 30% meat ingredients (on a dry matter basis) or meat percentage is unspecified
Not hypoallergenic: Contains wheat, maize, dairy products, soya products and/or artificial additives or has an ingredient list that is too unclear to rule out their presence
Not clearly labelled:

It is difficult to tell exactly what is in this food due to a lack of labelling clarity.

Certified nutritionally complete: This food complies fully with the complete food nutrient tolerances as recommended by FEDIAF and/or AAFCO

Price per day

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Mixing bowl:

Maize Flour, Rice, Animal Fats, Dehydrated Poultry Protein, Maize Gluten, Minerals, Hydrolysed Animal Proteins, Vegetable Fibres, Soya Oil, Fish Oil, Fructo-Oligo-Saccharides, Mono - and Diglycerides of Palmitic and Stearic Acids Esterified with Citric Acid, Marigold Extract (Source of Lutein). Protein Sources: Dehydrated Poultry Protein, Hydrolysed Animal Proteins, Calcium Sulphate (0.88%), Preservatives.

As fed (BETA):

Why is this different from the ingredients list?

Nutritional additives (per kg)

Vitamin A (15, 500 IU), Vitamin D3 (1000 IU), Iron (44mg/kg), Iodine (4.4mg/kg), Copper (13mg/kg), Manganese (57mg/kg), Zinc (147mg/kg), Selenium (0.06mg/kg), Sulphur (0.5%).

Typical Analysis

Protein 18.0%, Fat 17.0%, Fibre 2.2%, Ash 6.5%, Moisture 8.0%, Sodium 1.10%, Calcium 0.50%, Phosphorus 0.50%, Magnesium 0.04%, Omega3 0.63%, Omega6 3.59%.


388.0 kcal/100g

Dry weight nutrients

Above average


Below average

* NFE carbohydrate level (i.e. not including fibre). Level estimated from available data.


13kg bags RRP


Grams per day


Cost per day


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Company info
Name: Crown Pet Foods Ltd
HQ: Somerset, UK
Parent company: Mars
Brands: Cesar11 Cesar foods listed
Chappie22 Chappie foods listed
Crave44 Crave foods listed
Frolic11 Frolic foods listed
Greenies44 Greenies treats listed
James Wellbeloved3737 James Wellbeloved foods listed88 James Wellbeloved treats listed
Nutro1010 Nutro foods listed
Pedigree1414 Pedigree foods listed1515 Pedigree treats listed
Royal Canin4141 Royal Canin foods listed
Techni-Cal44 Techni-Cal foods listed
Manufacturer's product description

" URINARY S/O is a complete dietetic feed for dogs formulated to dissolve struvite stones and reduce their recurrence through its urine acidifying properties, a low level of magnesium and a restricted level of protein, but of high quality. Note: Please ensure your dog has correct kidney function before you give your dog Royal Canin veterinary diet - Urinary S/O LP 18. "

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