Feline Urinary SO + Calm Thin Slices in Gravy Wet Cat Food
Verified Jun 30, 2026
This is a veterinary therapeutic wet food for adult cats designed to support urinary tract health and help manage struvite and calcium oxalate crystals. It uses pork by-products, chicken, and chicken liver as primary protein sources, with added fiber and controlled minerals to influence urine volume and composition. The recipe is moderate in calories and includes hydrolyzed milk protein and L-tryptophan to nutritionally support cats that tend to be fearful or stressed.
Nutritionally, this is a well-designed urinary prescription diet for adult cats that also incorporates calming support for stress‑prone cats. The protein comes from a mix of animal by-products, muscle meats, and salmon meal, and the formula is carefully balanced for minerals and moisture to help support urinary tract health. It’s best suited for cats who have been specifically prescribed a urinary diet by their veterinarian, particularly if stress is suspected to play a role in their urinary issues.
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At a Glance
KibbleLab Review
Strengths
- Formulated to be complete and balanced for adult maintenance according to AAFCO, so it can be safely used as the main diet under veterinary guidance.
- High moisture content and controlled levels of minerals like magnesium, calcium, phosphorus, and sodium, which is important in diets aimed at supporting urinary health.
- Multiple animal protein sources (pork by-products, chicken, chicken liver, salmon meal) provide a good amino acid profile for cats.
- Includes hydrolyzed casein and added L-tryptophan, ingredients commonly used in veterinary diets to help nutritionally support calm behavior in stressed or anxious cats.
Considerations
- Contains common protein allergens such as chicken, pork, fish, and wheat gluten, so it would not be appropriate for cats with known sensitivities to these ingredients.
- Relatively low fat and moderate calorie density, which is generally fine but may not suit underweight or very high‑energy cats without careful portion adjustment.
- Because it is a therapeutic urinary diet, it should only be used under veterinary supervision, especially if your cat has other medical conditions that may need different nutritional management.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
Water
Water is an essential nutrient and the primary solvent and moisture component in pet foods, especially wet and canned diets, and is also used in processing and to adjust texture and palatability. It is vital for digestion, nutrient transport, temperature regulation and waste removal in dogs and cats; pets must have constant access to clean water as dehydration can quickly lead to serious health issues and requirements increase with activity, heat, or illness, while moisture in wet food can help meet part of their daily needs.
02
Pork By-Product
Pork by-product is a common protein and flavoring ingredient in pet foods made from non-rendered portions of the pig such as organs, connective tissue and trimmings, supplying animal protein, fat, B vitamins, iron and other trace minerals that help support energy, muscle maintenance and overall nutrition for dogs and cats. Because composition and fat content can vary by source, owners should be aware of potential pork sensitivities, higher caloric density, and sourcing/quality differences; ensure the complete diet meets species-specific requirements (for example, cats need adequate taurine) and consult the manufacturer or your veterinarian if you have concerns.
03
Chicken
Chicken is a common animal-based protein in dog and cat foods, supplying essential amino acids, B vitamins, and energy-dense fats that support muscle maintenance, growth, and overall health; for cats it also contributes toward dietary taurine but must be present in sufficient amounts or provided via supplementation. It is prized for its digestibility and palatability, though some pets develop sensitivities or allergies to chicken, and nutritional value and safety depend on ingredient quality and processing—raw chicken carries pathogen risks and whole bones can pose choking or GI hazards.
04
Chicken Liver
Chicken liver is a nutrient-dense organ meat commonly used in pet foods and treats as a highly palatable protein source and flavor enhancer, providing concentrated vitamins (especially vitamin A and B-complex), iron, and copper that support energy metabolism, red blood cell formation, and skin/coat health in both dogs and cats. Because it is so rich, liver should be fed in moderation—excessive intake can cause vitamin A toxicity, and its high fat content and risk of bacterial contamination mean it should be properly sourced or cooked and limited for pets with pancreatitis or specific dietary restrictions.
05
Salmon
Salmon is commonly used as a high-quality animal protein and rich source of omega‑3 fatty acids (EPA/DHA) in dog and cat foods, supporting skin and coat condition, joint and cognitive health, and overall muscle maintenance. While very nutritious, salmon can be an allergen for some pets and raw salmon may pose risks from parasites, thiaminase-related thiamine loss, and region-specific pathogens (e.g., salmon poisoning); owners should avoid feeding uncooked bones and consider sourcing to minimize contaminant and sustainability concerns.
Nutritional Breakdown
How to read As Fed versus Dry Matter
As fed shows the numbers straight off the label, water included. Dry matter removes the water so you can compare a wet food and a dry food fairly.What is calorie density
How many calories the food packs per unit. Denser foods mean smaller portions for the same calories.Product Details & Brand
Product Specs
AAFCO Nutritional Adequacy
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional
adequacy standards US pet foods are measured against.
What is AAFCO
Association of American Feed Control Officials. It sets the nutritional adequacy standards US pet foods are measured against.Brand
Royal Canin is a premium pet food brand offering highly specific diets tailored to different breeds, life stages, sizes, and health conditions of dogs and cats. The brand is known for its science-driven approach and collaboration with veterinarians and pet professionals.
Visit Royal CaninWSAVA publishes criteria for evaluating a manufacturer (qualified nutritionists, feeding trials, published research); it does not certify or endorse brands.
Manufacturer
Royal Canin operates manufacturing facilities globally with strict quality control processes and adheres to ISO certification standards. The company maintains full traceability of ingredients, follows HACCP principles, and complies with local and international pet food safety regulations including EU and FDA requirements.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Royal Canin Feline Urinary SO + Calm Thin Slices in Gravy Wet Cat Food has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Royal Canin ever been recalled?
We have no recalls on record for Royal Canin. We monitor the FDA Pet Food Recall Database daily.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall database. Last verified dates reflect our most recent data check.
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