Royal Canin Cat Dry Food Adult Veterinary Urinary S/O - 3.5kg

Support your cat's urinary tract health with specialised veterinary dry food formulated to help dissolve struvite stones and reduce the risk of urinary stone recurrence. Designed for adult cats requiring urinary nutritional management, Royal Canin Urinary S/O combines a carefully controlled mineral profile with reduced magnesium and Relative Supersaturation (RSS) technology to help create a urinary environment less favourable to crystal formation.

Urinary stones and crystals can cause discomfort and serious health complications in cats. Appropriate veterinary treatment, hydration, and a carefully selected diet are important parts of managing these conditions.

Royal Canin Urinary S/O is a complete veterinary dry cat food developed to support bladder and urinary tract health. Its nutritional formulation helps dissolve struvite stones and reduce the risk of recurrence of both struvite and calcium oxalate stones.

The 3.5kg bag provides a convenient format for cats following a veterinarian-recommended urinary feeding plan.

Veterinary Notice: Royal Canin Urinary S/O is a therapeutic veterinary diet. Use only under veterinary recommendation and supervision.

Key Features & Benefits

• Struvite Stone Dissolution: Formulated to help dissolve existing struvite urinary stones.
• Struvite Recurrence Management: Helps reduce the risk of new struvite stone formation.
• Calcium Oxalate Recurrence Management: Helps reduce the risk of calcium oxalate stone recurrence.
• Urinary Tract Support: Designed for cats requiring specialised urinary and bladder nutrition.
• Relative Supersaturation (RSS): Helps reduce the concentration and crystallisation potential of stone-forming minerals in urine.
• S/O Index: Supports a urinary environment less favourable to the formation of struvite and calcium oxalate crystals.
• Reduced Magnesium: Controlled magnesium levels support struvite management.
• Balanced Mineral Profile: Carefully formulated mineral content for urinary dietary management.
• Complete Veterinary Nutrition: Provides balanced daily nutrition for adult cats.
• Dry Kibble Format: Convenient for measured feeding and portion control.
• 3.5kg Bag: Suitable for ongoing veterinary urinary nutritional management.

Who Is This Food Suitable For?

Royal Canin Urinary S/O 3.5kg may be recommended by a veterinarian for adult cats with:

• Diagnosed struvite urinary stones.
• A history of recurrent struvite stones.
• A history of calcium oxalate stones requiring recurrence management.
• Urinary crystal formation requiring specialised nutritional support.
• Certain lower urinary tract conditions where a urinary veterinary diet is appropriate.
• A prescribed urinary feeding plan requiring controlled mineral intake.

Important: Urinary symptoms can have different causes. The appropriate diet depends on veterinary diagnosis, urine testing, and the type of urinary stones or crystals involved.

When Should Royal Canin Urinary S/O Be Used With Caution?

Royal Canin Urinary S/O should not be started without veterinary guidance.

A veterinarian should assess suitability for cats that are:

• Pregnant or nursing.
• Still growing.
• Diagnosed with chronic kidney disease.
• Diagnosed with heart disease or another condition requiring sodium restriction.
• Receiving urinary acidifying medication.
• Managing other medical conditions that require a different therapeutic diet.

These are important veterinary considerations, not a substitute for checking the contraindications on the specific regional product packaging.

Product Specifications

• Brand: Royal Canin
• Product: Urinary S/O
• Pet Type: Cat
• Category: Cat Dry Food
• Life Stage: Adult
• Diet Type: Veterinary Urinary Diet
• Food Type: Complete Dietetic Dry Cat Food
• Primary Purpose: Urinary Stone Dissolution and Recurrence Management
• Main Benefits: Struvite Dissolution, Urinary Health & Reduced Stone Recurrence Risk
• Key Nutritional Features: Reduced Magnesium, Controlled Minerals, RSS & S/O Index
• Texture: Dry Kibble
• Pack Size: 3.5kg
• Veterinary Supervision: Required

Why Choose Royal Canin Urinary S/O?

1. Helps Dissolve Struvite Urinary Stones

Struvite stones are one type of urinary stone that can develop in cats.

Their formation is influenced by several factors, including urine composition and the concentration of certain minerals.

Royal Canin Urinary S/O is formulated to help dissolve struvite stones by creating urinary conditions that favour their dissolution.

The duration of dietary management depends on veterinary assessment and monitoring.

Important: Not all urinary stones can be dissolved through diet. Your veterinarian must identify the stone type before recommending treatment.

2. Helps Reduce Struvite Stone Recurrence

Cats that have previously developed struvite stones may require ongoing dietary management.

Royal Canin Urinary S/O is designed to help reduce the risk of struvite crystals and stones forming again.

Its controlled mineral composition and urinary nutritional approach help create an environment less favourable to struvite crystallisation.

Regular veterinary follow-up remains important, especially in cats with recurrent urinary problems.

3. Supports Calcium Oxalate Stone Recurrence Management

Calcium oxalate stones are another important type of urinary stone in cats.

Unlike struvite stones, calcium oxalate stones cannot be dissolved through dietary treatment.

Royal Canin Urinary S/O is formulated to help reduce the risk of calcium oxalate stone recurrence by influencing urinary conditions associated with crystal formation.

This benefit relates to prevention of recurrence, not dissolution of existing calcium oxalate stones.

4. Relative Supersaturation (RSS) Technology

Relative Supersaturation, or RSS, describes the tendency of certain minerals in urine to form crystals.

When urine is highly supersaturated with stone-forming substances, crystallisation becomes more likely.

Royal Canin Urinary S/O uses an RSS-based nutritional approach to help reduce the risk of urinary crystal formation.

The formula is designed to lower the crystallisation potential of minerals associated with struvite and calcium oxalate stones.

5. S/O Index for Urinary Crystal Management

The Royal Canin S/O Index identifies a nutritional approach designed to create a urinary environment less favourable to certain crystal types.

Royal Canin Urinary S/O is formulated to support urinary conditions that help reduce the risk of struvite and calcium oxalate crystallisation.

This is particularly relevant for cats requiring long-term veterinary urinary dietary management.

6. Reduced Magnesium for Struvite Management

Magnesium is one of the minerals involved in struvite crystal formation.

Royal Canin Urinary S/O contains a reduced magnesium level as part of its specialised urinary formulation.

Controlled magnesium intake contributes to the overall nutritional strategy for managing struvite stones.

The exact magnesium percentage was not included in the supplied product information and should be verified against the current packaging.

7. Carefully Balanced Mineral Content

Urinary stone management requires more than reducing a single mineral.

Royal Canin Urinary S/O uses a carefully formulated mineral balance to support urinary health.

This nutritional profile works alongside the formula's RSS approach and reduced magnesium content.

The diet should be fed consistently according to veterinary instructions to maintain its intended nutritional effect.

8. Complete Nutrition for Adult Cats

Royal Canin Urinary S/O is described as a complete and balanced veterinary diet for adult cats.

It provides essential daily nutrients while addressing specific urinary nutritional requirements.

Because it is a therapeutic formula, the decision to use it and the duration of feeding should be guided by a veterinarian.

9. Convenient Dry Food for Measured Feeding

The dry kibble format makes it practical to measure daily feeding quantities.

Royal Canin Urinary S/O 3.5kg can be used as part of a consistent veterinary feeding routine.

Fresh drinking water should always be available.

Understanding Urinary Stones in Cats

What Are Struvite Stones?

Struvite stones contain minerals including magnesium, ammonium, and phosphate.

Under suitable urinary conditions, struvite crystals may form and contribute to urinary stones.

A veterinary diet such as Royal Canin Urinary S/O can help dissolve susceptible struvite stones and reduce the risk of recurrence.

What Are Calcium Oxalate Stones?

Calcium oxalate stones are a different type of urinary stone.

They cannot be dissolved through diet.

Nutritional management may help reduce the risk of recurrence, but existing stones may require other veterinary treatment.

Why Does Urine Composition Matter?

Urinary crystal formation is influenced by several factors, including:

• Mineral concentration.
• Urine volume.
• Urinary pH.
• The degree of mineral supersaturation.

Royal Canin Urinary S/O is designed to help manage urinary conditions associated with crystal formation.

Emergency Warning: If your cat repeatedly strains to urinate, produces little or no urine, cries while attempting to urinate, or appears distressed, seek emergency veterinary care immediately. Urinary blockage can be life-threatening, particularly in male cats.

Understanding the Nutritional Benefits

Nutritional Priority	How the Formula Helps
Struvite Dissolution	Helps dissolve existing struvite stones
Struvite Recurrence	Helps reduce the risk of new struvite stone formation
Calcium Oxalate Recurrence	Helps reduce recurrence risk; does not dissolve existing stones
Urinary Crystal Management	RSS-based nutritional approach
Urinary Environment	S/O Index
Magnesium Intake	Reduced magnesium content
Mineral Balance	Controlled mineral formulation
Daily Nutrition	Complete veterinary dry food for adult cats

Composition & Nutritional Information

The supplied product information confirms the following nutritional characteristics:

• Reduced magnesium content.
• Specialised mineral balance for urinary management.
• RSS-based nutritional formulation.
• S/O Index.
• Complete and balanced nutrition for adult cats.

Important: The full ingredient list, analytical constituents, and exact magnesium and other mineral percentages were not included in the supplied information.

These details should be verified against the current Royal Canin Urinary S/O 3.5kg packaging or official product specification before being added to the product page.

Feeding Guide

The following daily feeding quantities are based on the supplied Royal Canin Urinary S/O feeding guide.

Daily Dry Food Feeding Amounts

Cat Weight	Low Activity	Medium Activity	High Activity
2kg	26g	33g	39g
3kg	35g	44g	52g
4kg	43g	53g	64g
5kg	50g	63g	75g
6kg	57g	71g	85g

These quantities represent the total daily dry-food allowance.

Mixed Feeding Guide

The supplied information also includes a mixed-feeding guide using wet food and Royal Canin Urinary S/O dry food.

Cat Weight	Wet Food (Cans/Day)	Low Activity Dry Food	Medium Activity Dry Food	High Activity Dry Food
2kg	½ can	16g	24g	30g
3kg	1 can	15g	26g	35g
4kg	1 can	23g	37g	48g
5kg	1 can	31g	47g	60g
6kg	1 can	37g	57g	72g

Mixed Feeding Note: The supplied guide refers to cans but does not specify the can size or exact wet-food product. Confirm the compatible Royal Canin Urinary S/O wet formula and can size before applying these quantities. They should not be assumed to apply to 85gm pouches.

Feeding Guide Notes

• Quantities represent the total daily feeding allowance.
• The correct amount depends on body condition, activity level, and veterinary instructions.
• Divide the daily allowance into suitable meals.
• Provide fresh drinking water at all times.
• Avoid introducing other foods or treats without veterinary approval.
• Follow the current packaging and your veterinarian's recommendations if they differ from this guide.

Feeding Recommendations for Cats With Urinary Conditions

Follow a Consistent Veterinary Feeding Plan

Dietary management is an important part of caring for cats with certain urinary conditions.

Consistency matters because adding other foods may change the overall mineral intake and affect the intended urinary nutritional profile.

General Feeding Tips

• Follow Veterinary Instructions: Use the diet for the recommended duration.
• Measure Portions: Feed according to the prescribed daily allowance.
• Provide Fresh Water: Keep clean drinking water available throughout the day.
• Encourage Hydration: Ask your veterinarian whether compatible urinary wet food should be included.
• Avoid Unapproved Foods: Additional treats or diets may affect urinary nutritional management.
• Monitor Urination: Watch for changes in frequency, discomfort, or urine output.
• Maintain a Clean Litter Box: This makes changes in urinary habits easier to notice.
• Attend Follow-Up Appointments: Urine testing or imaging may be needed to monitor treatment.
• Store Food Properly: Keep the bag sealed in a cool, dry place.
• Seek Emergency Care When Needed: Difficulty passing urine or inability to urinate requires immediate veterinary attention.

Frequently Asked Questions

What Is Royal Canin Urinary S/O Used For?

Royal Canin Urinary S/O is a veterinary dry cat food formulated to help dissolve struvite stones and reduce the risk of recurrence of struvite and calcium oxalate urinary stones.

Can Royal Canin Urinary S/O Dissolve Struvite Stones?

Yes. The formula is designed to help dissolve struvite urinary stones.

Treatment should be monitored by a veterinarian.

Can Royal Canin Urinary S/O Dissolve Calcium Oxalate Stones?

No. Calcium oxalate stones cannot be dissolved through dietary treatment.

Royal Canin Urinary S/O may help reduce their recurrence risk.

What Does RSS Mean in Royal Canin Urinary S/O?

RSS stands for Relative Supersaturation.

It describes the tendency of minerals in urine to form crystals.

The formula is designed to help reduce the risk of urinary crystallisation.

What Is the Royal Canin S/O Index?

The S/O Index refers to the formula's nutritional approach to supporting a urinary environment less favourable to struvite and calcium oxalate crystal formation.

Why Does Royal Canin Urinary S/O Contain Reduced Magnesium?

Magnesium is involved in struvite crystal formation.

Reduced magnesium is one component of the formula's urinary stone management approach.

Is Royal Canin Urinary S/O a Complete Food?

Yes. It is described as a complete and balanced veterinary diet for adult cats.

Can Healthy Cats Eat Royal Canin Urinary S/O?

This is a specialised veterinary diet and should not be used as routine maintenance food without veterinary advice.

Can I Mix Royal Canin Urinary S/O Dry and Wet Food?

Yes, if your veterinarian recommends compatible Royal Canin Urinary S/O wet food.

Follow the correct mixed-feeding quantities for the specific wet-food pack size.

How Much Royal Canin Urinary S/O Should I Feed a 4kg Cat?

According to the supplied dry-feeding guide:

• Low Activity: 43g per day.
• Medium Activity: 53g per day.
• High Activity: 64g per day.

Your veterinarian may recommend a different amount based on your cat's condition.

How Long Does a 3.5kg Bag Last?

A 3.5kg bag contains approximately 3,500g of dry food.

For example, at a daily allowance of 53g, the bag would last approximately 66 days for one cat.

Actual duration depends on the prescribed feeding quantity and whether wet food is also included.

What Should I Do if My Cat Cannot Urinate?

Seek emergency veterinary care immediately.

An inability to pass urine may indicate urinary obstruction, which can become life-threatening.

Storage Instructions

Store Royal Canin Urinary S/O 3.5kg in a cool, dry place away from direct sunlight.

Keep the bag properly sealed after opening to help maintain freshness.

Use a clean, dry food scoop and avoid exposing the kibble to moisture.

Check the packaging for the best-before date, batch number, and additional storage instructions.

Shop Royal Canin Urinary S/O 3.5kg at Zima Pets

Support your cat's urinary health with specialised veterinary nutrition formulated to help dissolve struvite stones and reduce the risk of urinary stone recurrence.

Shop Royal Canin Urinary S/O Dry Cat Food 3.5kg at Zima Pets Egypt and explore more Royal Canin veterinary diets and premium cat care essentials at https://zimapets.com.

Veterinary Notice: Royal Canin Urinary S/O is intended for cats requiring veterinary urinary dietary management. Use under veterinary supervision. Dietary treatment does not replace emergency care, diagnostic testing, or other medical treatment when required.