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Home
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Products
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Royal Canin Veterinary Diet
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Urinary S/O Wet Dog Food

Urinary S/O Wet Dog Food

Royal Canin Veterinary Diet
4.8
(
94
)
Royal Canin Urinary S/O is a veterinary-formulated wet dog food designed for dogs with lower urinary tract disease including struvite and calcium oxalate crystal formation. The wet format naturally provides higher moisture intake per meal, which promotes increased urine production and helps dilute mineral concentrations that contribute to stone formation. The formula uses the S/O Index to create a urinary environment unfavourable to both struvite and calcium oxalate crystals, and can assist in dissolving existing struvite uroliths. Pork and poultry by-products provide digestible protein at 8%, while powdered cellulose supports digestive health. Fish oil supplies omega-3 fatty acids. The low RSS formulation reduces the relative supersaturation of urine, a key measure in preventing crystal recurrence. This diet can be combined with the dry Urinary S/O formula for added hydration benefits. This is a complete and balanced prescription diet for use under veterinary supervision.
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Overview
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Size 1
410g
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Overview

Royal Canin Urinary S/O is a veterinary-formulated wet dog food designed for dogs with lower urinary tract disease including struvite and calcium oxalate crystal formation. The wet format naturally provides higher moisture intake per meal, which promotes increased urine production and helps dilute mineral concentrations that contribute to stone formation.

The formula uses the S/O Index to create a urinary environment unfavourable to both struvite and calcium oxalate crystals, and can assist in dissolving existing struvite uroliths. Pork and poultry by-products provide digestible protein at 8%, while powdered cellulose supports digestive health. Fish oil supplies omega-3 fatty acids.

The low RSS formulation reduces the relative supersaturation of urine, a key measure in preventing crystal recurrence. This diet can be combined with the dry Urinary S/O formula for added hydration benefits. This is a complete and balanced prescription diet for use under veterinary supervision.

Nutritional Analysis

Protein
8
%
0%
Fat
6
%
0%
Fibre
1.4
%
0%
Ash
2.1
%
0%
Moisture
78
%
0%
Energy
96
0
 kcal/100g

Ingredients

Pork By-Products, Poultry By-Products, Maize Flour, Powder Cellulose, Corn Starch Mixture, Sunflower Oil Refined, Minerals, Pork Blood Products, Fish Oil, Marigold Meal. Nutritional Additives: Vitamin D3, Iron, Iodine, Copper, Manganese, Zinc. Technological Additives: Sodium Bisulfate.

Ingredient images are illustrative only and may not represent the exact source or form used by manufacturers.
Finely ground pink and white pork by-products formed into a moist, chunky ball, suitable as a dog food ingredient
Pork By-Products
Pork By-Products
Swine By-Products, Sus Scrofa By-Products, Porcine By-Products, Porcine Offal
Summary
Pork by-products are animal-derived ingredients sourced from non-rendered, clean parts of pigs, excluding meat, such as organs and tissues. They are included in pet food primarily for their high-quality protein, essential amino acids, and micronutrients. Pork by-products are used in their natural, edible form, providing a nutrient-dense addition that supports overall health and palatability in pet diets.
Why it's used?
Pork by-products are included as a cost-effective source of animal protein and essential nutrients, utilising parts of the animal not typically consumed by humans. Their use allows manufacturers to optimise nutritional value while maintaining competitive pricing.
Poultry by-products formed into a pink and red chunky mound with a moist, textured appearance
Poultry By-Products
Poultry By-Products
Poultry By-Product Meal, Gallus Spp. By-Products, Avian By-Products, Rendered Poultry By-Products
Summary
Poultry by-products are animal-derived ingredients sourced from the non-rendered, clean parts of poultry, such as organs and tissues, excluding feathers, heads, feet, and intestines. They provide a concentrated source of protein, essential amino acids, vitamins, and minerals, supporting overall pet health. Poultry by-products are used in their processed form, ensuring safety, digestibility, and optimal nutrient availability for pets.
Why it's used?
Poultry by-products are included as a cost-effective source of animal protein and essential nutrients, utilising parts of the bird not typically consumed by humans. Their use allows manufacturers to optimise ingredient yield and maintain product affordability while meeting nutritional requirements.
Fine, pale yellow maize flour with a soft, powdery texture, displayed as a nutritious ingredient for dog food recipes
Maize Flour
Maize Flour
Corn Flour, Zea Mays Flour, Zea Mays, E160b
Summary
Maize flour is a finely ground powder derived from whole maize (corn) kernels, making it a plant-based ingredient. It serves primarily as a carbohydrate source, providing energy and aiding in kibble structure. In pet food, maize flour is used in its natural, milled form rather than as a raw kernel, ensuring digestibility and consistent nutrient delivery.
Why it's used?
Maize flour is included as a cost-effective carbohydrate source that provides energy and helps achieve the desired texture in pet food formulations. It also serves as a bulk-adding agent, allowing manufacturers to optimise production costs while maintaining product consistency.
Light beige cellulose powder with a fine, soft texture, commonly used as dietary fibre in dog food
Cellulose Powder
Cellulose Powder
Microcrystalline Cellulose, Powdered Cellulose, E460, Cellulosum
Summary
Cellulose powder is a plant-derived ingredient sourced primarily from wood pulp. It serves as an insoluble dietary fibre, supporting digestive health and stool quality in pets. Rather than being used in its raw, fibrous state, cellulose is processed into a fine powder to optimise its functional benefits and ensure safe, consistent inclusion in pet food formulations.
Why it's used?
Cellulose powder is included as a cost-effective fibre source to aid stool quality and promote digestive health. It also functions as a bulk-adding agent, helping to control calorie density in pet food formulations.
Fine white corn starch mixture with a soft, fluffy texture, shown close-up as a dog food recipe ingredient
Corn Starch Mixture
Corn Starch Mixture
Maize Starch Mixture, Zea Mays Starch Mixture, Maizena Mixture, E1401 Mixture
Summary
Corn starch mixture is a refined carbohydrate derived from the endosperm of corn kernels, making it a plant-based ingredient. It is primarily used as a thickening agent and to improve the texture and digestibility of pet foods. Rather than being used in its whole form, corn starch is processed and utilised as a purified powder to ensure consistency, safety, and optimal absorption.
Why it's used?
Corn starch mixture is included as a cost-effective carbohydrate source and bulk-adding agent, helping to optimise product texture and manufacturing efficiency. It also contributes to binding and stability, supporting the overall structure and shelf life of the finished pet food.
Golden yellow drop of refined sunflower oil with a smooth, glossy texture on a plain background
Refined Sunflower Oil
Refined Sunflower Oil
Helianthus Annuus Oil, Sunflower Seed Oil, E471 (Sunflower), Sunflower Oil
Summary
Refined sunflower oil is a plant-derived oil extracted from the seeds of the sunflower (Helianthus annuus). It is primarily included in pet food as a source of energy and essential fatty acids, particularly linoleic acid, which supports skin and coat health. Rather than being used in its raw form, sunflower oil is refined to remove impurities, ensuring safety, stability, and optimal nutrient absorption.
Why it's used?
Refined sunflower oil is included as a cost-effective fat source to provide essential fatty acids and improve the palatability of the product. Its neutral flavour and stability also help optimise shelf life without affecting the overall taste profile.
Too vague to identify
Minerals
Minerals
Dietary Minerals, Inorganic Nutrients, Essential Minerals, Bulk Elements
Summary
Minerals are essential inorganic nutrients derived from the earth, not produced by animals or plants. They play a critical role in supporting various physiological functions, such as bone development, nerve transmission, and enzyme activity. In pet food, minerals are not used in their natural raw or metallic state; instead, they are incorporated as specific compounds (such as sulphates or chelates) to optimise safety and bioavailability.
Why it's used?
Minerals are included to meet essential nutritional requirements for pets, supporting overall health and proper bodily functions. They are often added in precise amounts to ensure the product complies with regulatory standards and nutrient profiles.
Dark reddish-brown pork blood products powder with a slightly coarse, crumbly texture on a plain background
Pork Blood Products
Pork Blood Products
Porcine Blood, Sus Scrofa Blood, Pig Blood, Porcine Plasma
Summary
Pork blood products are derived from the blood of pigs and are classified as animal-based ingredients. They are primarily included in pet food for their high-quality protein and rich iron content, supporting muscle development and oxygen transport. These products are not used in their raw liquid form; instead, they are processed and dried to ensure safety, stability, and optimal nutrient absorption in pet diets.
Why it's used?
Pork blood products are included as a cost-effective, highly digestible source of animal protein and essential minerals. They also enhance the nutritional profile and palatability of the final product.
Golden yellow fish oil droplet with a glossy, smooth texture on a white background, highlighting its purity and quality
Fish Oil
Fish Oil
Fish Liver Oil, Oleum Piscis, Oleum Jecoris, Oleum Piscarium
Summary
Fish oil is a nutrient-rich oil derived from the tissues of oily fish, making it an animal-based ingredient. It is primarily included in pet food for its high content of omega-3 fatty acids, which support skin, coat, and joint health. Fish oil is utilised in a purified, liquid form rather than as whole fish, ensuring optimal absorption and safety for pets.
Why it's used?
Fish oil is included as a source of omega-3 fatty acids to support skin, coat, and joint health, enhancing the nutritional profile of the product. Its presence also serves as a marketing point, appealing to consumers seeking functional health benefits for their pets.
Fine, golden-yellow marigold meal powder with a soft, textured surface, used in natural dog supplements
Marigold Meal
Marigold Meal
Calendula Officinalis Meal, Calendula Meal, Dried Calendula Officinalis, Dried Calendula Meal
Summary
Marigold meal is a plant-derived ingredient made from the dried and ground flowers of the marigold (Tagetes erecta). It is primarily included in pet food for its natural lutein content, which supports eye health and provides antioxidant benefits. Marigold meal is used in its natural, whole-food form, ensuring the retention of its beneficial carotenoids and phytonutrients.
Why it's used?
Marigold meal is included as a natural colourant to enhance the visual appeal of pet food and as a label-friendly ingredient that may appeal to consumers seeking botanicals. It may also be used for its potential antioxidant properties, supporting product marketing claims.
Fine pale yellow Vitamin D3 powder with a smooth, soft texture, commonly used as a supplement for dogs
Vitamin D3
Vitamin D3
Cholecalciferol, Colecalciferol, Calciol, E671
Summary
Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin of animal origin commonly derived from lanolin or fish oil. It plays a crucial role in regulating calcium and phosphorus metabolism, supporting healthy bone development in pets. Vitamin D3 is not used in its natural form but is instead utilised as a stabilised compound to ensure safety, efficacy, and optimal absorption in pet food formulations.
Why it's used?
Vitamin D3 is included to ensure the finished product meets established nutritional requirements for canine health, supporting bone development and calcium regulation. Its addition allows manufacturers to guarantee consistent vitamin content regardless of natural variation in raw materials.
Fine grey iron powder with a slightly rough, sandy texture, displayed in a circular shape for dog nutrition context
Iron
Iron
Ferrum, Fe, E1, Elemental Iron
Summary
Iron is an essential mineral sourced from both animal and plant origins, crucial for oxygen transport and energy metabolism in pets. Its primary benefit is supporting healthy red blood cell formation and preventing anaemia. Iron is not used in its natural, raw, or metallic state; instead, it is utilised in pet food as safe, bioavailable compounds such as iron sulphate or iron proteinate to optimise absorption.
Why it's used?
Iron is included as an essential mineral to support healthy blood function and overall metabolism in pets. Its addition ensures the product meets nutritional requirements and regulatory standards for complete and balanced pet food.
Fine off-white iodine powder with a soft, slightly grainy texture, used as a supplement ingredient for dogs
Iodine
Iodine
Elemental I, E127, Iodum, CAS 7553-56-2
Summary
Iodine is an essential trace mineral sourced primarily from seaweed or mineral deposits. It plays a critical role in supporting healthy thyroid function and hormone production in pets. Iodine is not used in its natural elemental form due to safety and bioavailability concerns; instead, it is typically incorporated as a compound such as potassium iodide or calcium iodate to optimise absorption and efficacy.
Why it's used?
Iodine is included as an essential trace mineral to support thyroid function and overall metabolic health in pets. Its addition ensures nutritional adequacy and compliance with regulatory labelling standards for complete and balanced pet foods.
Bright blue copper powder with a fine, slightly textured surface, used as a dog supplement ingredient
Copper
Copper
Cu, ECP, CI 77400, C.I. 77400
Summary
Copper is an essential trace mineral sourced from the earth and is vital for numerous physiological functions in pets. It primarily supports red blood cell formation, connective tissue development, and immune system health. Copper is not used in its natural metallic state; instead, it is incorporated into pet food as safe, bioavailable compounds such as copper sulphate or copper proteinate to optimise absorption and efficacy.
Why it's used?
Copper is included as an essential trace mineral to meet nutritional requirements for dogs, supporting enzyme function and red blood cell formation. Its addition ensures compliance with regulatory standards for complete and balanced pet food labelling.
Pale beige manganese powder with a fine, slightly clumpy texture, used as a dog supplement ingredient
Manganese
Manganese
E34, Manganum, Mn, EINECS 231-105-1
Summary
Manganese is an essential trace mineral sourced from the earth and is vital for numerous metabolic processes in pets. It primarily supports bone development, enzyme function, and antioxidant defence. Manganese is not used in its natural metallic state; instead, it is incorporated into pet food as a safe, bioavailable compound such as manganese sulphate or manganese oxide to optimise absorption and efficacy.
Why it's used?
Manganese is included as an essential trace mineral to support metabolic and skeletal health in pets, fulfilling nutritional requirements for complete and balanced pet food. Its addition ensures compliance with regulatory standards and appeals to consumers seeking scientifically formulated diets.
Fine, light grey zinc powder with a slightly grainy texture, commonly used as a dog supplement ingredient
Zinc
Zinc
Zn, E579, Zincum, CI 77947
Summary
Zinc is an essential trace mineral sourced from the earth and is vital for numerous biological functions in pets, including immune support and skin health. In pet food, zinc is not used in its natural metallic state; instead, it is utilised as a compound such as zinc sulphate or zinc chelate to optimise safety and absorption, ensuring pets receive its full nutritional benefit.
Why it's used?
Zinc is included as an essential trace mineral to support immune function, skin health, and overall metabolic processes in pets. Its addition ensures nutritional adequacy and compliance with regulatory labelling standards for complete and balanced pet foods.
Fine white granules of sodium bisulphate with a slightly powdery, textured surface on a plain background
Sodium Bisulphate
Sodium Bisulphate
Sodium Hydrogen Sulphate, Monosodium Sulphate, Acid Sodium Sulphate, Sodium Acid Sulphate
Summary
Sodium bisulphate is a mineral-derived compound commonly used in pet food as an acidifier. Originating from the reaction of sodium chloride and sulphuric acid, it is not used in its natural raw or metallic state but is instead utilised as a specific salt to ensure safety and optimal absorption. Its primary function is to help maintain urinary health by controlling urine pH.
Why it's used?
Sodium bisulphate is included as an acidulant to help control pH levels, thereby inhibiting microbial growth and extending product shelf life. Its use also supports consistent product quality and safety during storage and distribution.

About

Brand
Royal Canin Veterinary Diet
Company
Mars Petcare
Manufactured
France
Type
Canned
Life Stage
Adult, Senior
Breed Size
All Breeds
Feeding Type
Complete Meal
Processing Level
High

Product Tags

Gluten Free
Dairy Free
Soy Free

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About the Brand

Royal Canin Veterinary Diet

Royal Canin Veterinary Diet is a clinic-exclusive therapeutic food range for dogs and cats with diagnosed health conditions. Covers urinary, renal, gastrointestinal, allergy, and more.

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Urinary S/O Wet Dog Food
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4.8
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