Royal Canin Sterilised 37 Cat Food for Neutered Adult Cats is a scientifically formulated dry diet designed to meet the unique nutritional needs of neutered felines aged one to seven years. This 10 kg bag of premium food from Royal Canin directly addresses two primary health concerns for neutered cats: weight management and urinary tract health. With a high 37% protein content, a moderate 12% fat profile, and added L-Carnitine to support fat metabolism, this food helps maintain lean muscle mass while controlling calorie intake. Furthermore, its precise mineral balance is crafted to promote an ideal urine pH, supporting overall urinary system health. Veterinarians and pet nutrition experts often recommend Royal Canin Sterilised 37 for its targeted, comprehensive approach to post-neutering care, making it a top choice for responsible cat owners seeking a specialized diet.
Royal Canin Product Features & Benefits
Royal Canin Sterilised 37 is engineered with a nutrient profile that specifically targets the physiological changes in neutered adult cats. The cornerstone of this formula is its 37% crude protein content, sourced primarily from high-quality dehydrated poultry protein. This high protein level is crucial for supporting and maintaining lean muscle mass, which can be at risk in neutered cats with a slower metabolism. Simultaneously, the formula maintains a moderate fat content of 12%, which helps control overall calorie density without compromising palatability or energy levels. This careful balance ensures your cat feels satisfied while consuming an appropriate number of calories for weight management.
A key differentiator of this Royal Canin product is the inclusion of an enhanced level of L-Carnitine, at 100 mg/kg. L-Carnitine is a nutrient that plays a vital role in fat metabolism, helping the body convert stored fat into usable energy. For a neutered cat, whose metabolism may have slowed, this addition is a strategic tool in the fight against weight gain, supporting the maintenance of an ideal body condition. The food also contains a blend of fibers, including beet pulp, which aids in healthy digestion and contributes to a feeling of fullness.
Beyond weight control, Royal Canin Sterilised 37 provides robust support for urinary health. Neutered cats are statistically more prone to urinary tract issues, including the formation of struvite crystals. This formula combats that risk through a precisely adjusted mineral balance. By carefully controlling the levels of minerals like calcium and phosphorus, the food helps maintain an ideal urine pH, creating an environment less conducive to crystal formation. This proactive approach to urinary care is a fundamental benefit of choosing this specialized diet from Royal Canin.
Why Choose Royal Canin for Your Neutered Cat
Choosing Royal Canin Sterilised 37 means opting for a diet backed by extensive research and a commitment to breed-specific and life-stage-specific nutrition. Royal Canin employs a team of veterinary nutritionists who design formulas based on scientific observation of cats' real needs. The Sterilised 37 formula is not a generic adult cat food; it is a purpose-built solution for the distinct metabolic and health profile of a neutered cat aged 1 to 7 years. This targeted approach can lead to better health outcomes, including a healthier weight, improved urinary function, and sustained energy levels.
Pet owners choose Royal Canin for its consistency and quality. The Sterilised 37 cat food is manufactured in France under strict European quality and safety standards, ensuring every 10 kg bag delivers the same precise nutrient profile. This reliability is essential for managing chronic conditions like weight control and urinary health, where dietary consistency is key. Furthermore, the kibble is designed with a specific texture and shape to encourage chewing, which promotes dental health and slows down eating.
Experts recommend Royal Canin for its holistic view of pet health. The brand understands that nutrition is a cornerstone of preventative healthcare. By feeding your neutered cat Royal Canin Sterilised 37, you are investing in a diet designed to mitigate common post-neutering health risks. This can contribute to a better quality of life for your cat and potentially reduce future veterinary costs related to obesity or urinary tract disorders, offering excellent long-term value.
Key Nutritional Profile of Royal Canin Sterilised 37
The effectiveness of Royal Canin Sterilised 37 hinges on its detailed and deliberate nutritional composition. The table below outlines the core analytical constituents and key additives that define this specialized diet for neutered adult cats.
| Nutrient | Content | Primary Benefit for Neutered Cats |
|---|---|---|
| Crude Protein | 37.0% | Supports maintenance of lean muscle mass. |
| Crude Fat | 12.0% | Provides energy while helping control calorie intake for weight management. |
| Crude Fiber | 6.2% | Supports healthy digestion and satiety. |
| Calcium | 0.88% | Part of the adjusted mineral balance for urinary health. |
| Phosphorus | 0.80% | Works with calcium to support ideal urine pH. |
| L-Carnitine | 100 mg/kg | Assists in fat metabolism to support weight management. |
This nutritional profile is the result of targeted formulation. The high protein level is essential because neutered cats require adequate protein to prevent muscle loss, especially when on a calorie-controlled diet. The moderate fat level provides essential fatty acids and energy without excessive calories. The fiber content, including ingredients like beet pulp, promotes intestinal health and helps your cat feel full. Most importantly, the precise ratios of calcium and phosphorus are not accidental; they are calculated to help dilute urine and maintain a pH level that discourages the formation of struvite crystals, a common concern in neutered cats.
Understanding the Needs of Neutered Adult Cats
Neutering is a common and responsible procedure, but it brings about significant hormonal changes that directly impact a cat's metabolism and health. After neutering, a cat's energy requirement can decrease by up to 30%, while its appetite may simultaneously increase. This mismatch is the primary driver of weight gain, which can lead to obesity, joint stress, diabetes, and a reduced lifespan. Furthermore, neutered cats, particularly males, can be more susceptible to lower urinary tract diseases (FLUTD), where factors like urine concentration and pH play a critical role.
Royal Canin Sterilised 37 is formulated with these specific challenges in mind. Its weight management strategy is multi-faceted: it controls calories through moderate fat, promotes lean tissue through high protein, and actively aids fat burning with L-Carnitine. For urinary health, it doesn't just rely on encouraging water intake (though fresh water should always be available); it actively manages the mineral output in urine to create a less hospitable environment for crystal formation. This dual-action approach is why nutritionists suggest specialized diets like Royal Canin Sterilised 37 over regular adult maintenance foods for neutered felines.
It's also formulated for the specific life stage of adulthood (1-7 years). Cats in this prime stage need support for their ongoing health and activity, not the growth needs of kittens or the geriatric support required by senior cats. By focusing on this window, Royal Canin can optimize the formula for the metabolic and physiological state of a neutered cat in its prime, ensuring the nutrients are perfectly aligned with their requirements.
How to Feed Royal Canin Sterilised 37 for Best Results
To maximize the benefits of Royal Canin Sterilised 37, proper feeding practices are essential. Always follow the daily feeding guide provided on the 10 kg bag, which is based on your cat's ideal body weight and activity level. For example, a neutered adult cat with an ideal weight of 4 kg typically requires approximately 55-60 grams of this dry food per day. It is crucial to measure portions carefully using a scale or measuring cup, as even small overfeeding can undermine the weight management goals of this moderate-fat, high-protein formula.
If you are switching your cat to Royal Canin Sterilised 37 from another food, a gradual transition over 7 to 10 days is highly recommended. Start by mixing 25% of the new Sterilised 37 food with 75% of the current food. Over the following week, slowly increase the proportion of the new food while decreasing the old. This method allows your cat's digestive system to adapt to the new protein sources, fiber blend, and nutrient density, minimizing the risk of gastrointestinal upset. Monitor your cat's appetite and stool consistency throughout the transition.
Consistency is key. Once transitioned, feed Royal Canin Sterilised 37 as the sole diet for comprehensive nutritional support. Always ensure a bowl of fresh, clean water is readily available to support hydration and urinary health. Regular weigh-ins and body condition scoring are also advised to ensure the diet is effectively helping your cat maintain its ideal weight. If you have any concerns about portion sizes or your cat's response to the diet, consulting your veterinarian is the best course of action.
Royal Canin Sterilised 37 Compared to Regular Cat Food
The fundamental difference between Royal Canin Sterilised 37 and a standard adult cat food lies in its targeted nutritional design. A regular maintenance cat food is formulated for the average adult cat, regardless of reproductive status. It typically provides balanced nutrition but does not specifically address the heightened risks of weight gain and urinary issues faced by neutered cats. In contrast, Sterilised 37 is a precision tool.
Its fat content is consciously moderated at 12% to align with a neutered cat's lower energy needs, whereas many regular adult foods may have higher fat levels. It includes a functional additive, L-Carnitine, specifically to enhance fat metabolism—an ingredient not commonly found in standard formulas at this concentration. Most critically, its mineral balance is meticulously calibrated for urinary health, a feature not present in generic diets. The 37% protein level is also notably high, emphasizing muscle preservation in a population prone to losing lean mass when dieting. For a neutered cat, feeding a regular food may mean missing out on these proactive health supports, potentially leaving them more vulnerable to common post-neutering health problems.
Ingredients and Sourcing: The Royal Canin Standard
Royal Canin Sterilised 37 is made with carefully selected ingredients to deliver its promised nutritional benefits. The primary protein source is dehydrated poultry protein, a concentrated and highly digestible form of protein that helps achieve the high 37% crude protein level essential for muscle maintenance. The formula includes grains like corn and rice, which provide a source of carbohydrates for energy, as well as vegetable protein isolate.
Key functional ingredients include animal fats for energy and essential fatty acids, beet pulp for digestive fiber, and fish oil as a source of omega-3 fatty acids. The inclusion of fructo-oligosaccharides (FOS) acts as a prebiotic to support beneficial gut bacteria. Every ingredient is chosen for a specific purpose within the nutritional matrix. Importantly, this dry cat food is manufactured by Royal Canin SAS in France, adhering to stringent European Union regulations on pet food safety and quality control. This origin provides assurance regarding the consistency and safety of the production process for this 10 kg bag of specialized nutrition.
Making the Decision: Is Royal Canin Sterilised 37 Right for Your Cat?
Royal Canin Sterilised 37 Cat Food is an excellent long-term nutritional choice if your cat is neutered and between one and seven years of age. It is particularly beneficial for cats that are already showing a tendency to gain weight or for owners who want to proactively prevent weight-related and urinary health issues. The diet offers strong value by supporting overall wellness and potentially reducing the likelihood of costly health problems down the line.
This food is not recommended for intact cats, kittens under 12 months, or senior cats over 7 years, as their nutritional requirements differ. Always consider your cat's individual health status. If your cat has a pre-existing medical condition, such as kidney disease or specific food allergies, consult your veterinarian before changing diets. For the typical healthy, neutered adult cat, Royal Canin Sterilised 37 provides a scientifically-backed, targeted approach to nutrition that can help them live a leaner, healthier, and more active life. Discover the difference a specialized diet can make for your neutered companion.



















