by Royal Canin
Senior
Sterilised

Royal Canin

Sterilized Ageing 12+

Senior
Sterilised
1

First Ingredient

Grains

Flavor

Poultry

Cat Food Central Quality Score: 28 out of 100
1.1K views

Available sizes

400 g
14.1 oz
2 kg
4.4 lb
4 kg
8.8 lb

Summary

Royal Canin Sterilized Ageing 12+ is a dry food tailored for senior sterilized cats aged 12 years and older, focusing on weight control, renal support, and aging-related function through a precisely balanced nutrient profile.
Dehydrated poultry protein is the primary animal-based ingredient, supported by maize, wheat, and gluten sources that provide energy and protein in a digestible, calorie-controlled format.
The formula includes a moderate fat content (15%) and L-carnitine (212 mg/kg) to support fat metabolism and reduce the risk of age-related weight gain in less active senior cats.
A specialized healthy aging complex combines antioxidants, including lycopene (7 mg/kg), beta-carotene, and EPA/DHA (0.6%), to help limit oxidative stress and support cognitive function, mobility, and cell protection.
Chicory pulp, psyllium husks, and vegetable fibers contribute to digestive regularity and support the gut microbiome, particularly important in older cats with sensitive digestion.
Phosphorus is held to a moderate 0.6%, targeting renal protection by supporting kidney workload reduction during age-related function decline.
Glucosamine and chondroitin are included from natural sources, such as hydrolyzed cartilage and fermentation products, supporting joint health and mobility maintenance.
Tryptophan is present at 0.4%, contributing to serotonin balance and behavior regulation, while borage oil and fish oil provide fatty acids to support coat condition and inflammation control.

Pros
Expand All
1

Weight management formula

Moderate fat and added L-carnitine help prevent weight gain in sterilized senior cats with reduced activity levels.
2

Targeted aging support

Lycopene, beta-carotene, EPA/DHA, and antioxidants work together to address cellular aging, cognitive decline, and joint mobility.
3

Renal function support

The phosphate level is kept at 0.6%, suitable for senior cats requiring lower mineral strain on the kidneys.
4

Digestive regulation

Psyllium, chicory, and yeast derivatives contribute to gut function and digestive comfort in aging cats.
5

Behavioral and joint care

The inclusion of tryptophan and natural sources of glucosamine and chondroitin further supports mobility and neurological health.
Cons
Expand All
1

High plant inclusion

Maize, wheat, and maize gluten dominate the ingredient list, making it less suitable for cats requiring a meat-forward or grain-free formula.
2

No explicit fresh meat

Despite the use of poultry protein, no fresh meat appears in the ingredient list, which may concern those seeking minimally processed inclusions.
3

Limited transparency in fats

Animal fats are included without specifying the species source, which may raise questions for cats with sensitivities.
4

No chelated minerals

While comprehensive, the mineral blend lacks chelated forms that typically enhance trace element absorption in senior diets.

Nutrition

Ingredients

  • Maize
  • Vegetable protein isolate*
  • Maize Flour
  • Dehydrated Poultry Proteins
  • Wheat
  • Maize Gluten
  • Animal Fats
  • Vegetable Fibres
  • Hydrolysed Animal Proteins
  • Chicory Pulp
  • and also:
Minerals, Fish Oil, Soya Oil, Yeasts And Parts Thereof, Tomato (Source Of Lycopene), Fructo-Oligo-Saccharides, Psyllium Husks And Seeds, Hydrolysed Yeast (Source Of Manno-Oligo-Saccharides), Hydrolysed Crustaceans (Source Of Glucosamine), Borage Oil, Marigold Extract (Source Of Lutein), Hydrolysed Cartilage (Source Of Chondroitin)

* L.I.P.: protein selected for its very high digestibility

Vitamins and Additives

  • Vitamin A 19000 IU
  • Vitamin D3 700 IU
  • and also:
E1 (Iron): 40 mg, E2 (Iodine): 4 mg, E4 (Copper): 12 mg, E5 (Manganese): 52 mg, E6 (Zinc): 154 mg, E8 (Selenium): 0.07 mg - Sensory additives: Tea extract (source of polyphenols): 0.6 g - Preservatives - Antioxidants.

Guaranteed Analysis

Crude Protein
30%
Crude Fat
15%
Crude Fiber
4.9%
Crude Ash
5.4%
Phosphorus
0.6%
Omega 3
10.9%
Lycopene: 6.5 mg/kg

Comments

Important Notice 1: Product details may vary by region. The information presented here is sourced from royalcanin.com - Malta-English site

Important Notice 2: This product is expected to be replaced with new products (Ageing 11 and Ageing 15)

Notes

Information about antioxidants and preservatives is missing or insufficient. Since I didn’t want to remove points due to this missing info without any proof, I evaluated this food assuming the natural preservatives were used. But note that this is just an assumption.

Guaranteed Analysis

Crude Protein
30%
Crude Fat
15%
Crude Fiber
4.9%
Crude Ash
5.4%
Phosphorus
0.6%
Omega 3
10.9%
Lycopene: 6.5 mg/kg
Last reviewed:
We periodically review this product’s details and update them to match the manufacturer’s latest published information, but some changes may not be reflected immediately. View the product change history.

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Product changes
Royal Canin

Sterilized Ageing 12+

Product changes

13-12-2025
  • 2nd Ingredient changed from Wheat Gluten* -> Vegetable protein isolate*
Product feedback

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How the score is calculated?

The actual calculation of the score is based on sophisticated and advanced algorithm that takes into account multiple parameters.

To simplify the explanation, the calculation is based on three main criteria:

(1) Amount of protein (more is better)

(2) Amount of carbohydrates (less is better)

(3) Quality and source of ingredients.

Based on that 3 main criteria, 9 score calculation rules are used to compare the different foods.

One major assumption is that the closer an ingredient is to the top of the ingredient list, the greater its relative weight and contribution to the food.

In general, cat food is composed of protein, fats, carbohydrates, fibers, vitamins, and minerals.

Protein is the most important component in a cat's diet, and cats primarily get their protein from animal meat.

Fat is a primary source of energy and essential fatty acids.

Carbohydrates are controversial in a cat's diet, as cats are obligate carnivores and typically consume very few carbohydrates.

Fibers play an important role in digestion and food absorption, and vitamins and minerals are essential for different organism functions.

Dry matter values are used to compare the amount of nutrients in different cat foods. This means that moisture is excluded from the equation to provide a more accurate comparison.

Putting all of these and more into a formula results in a product score.

The maximum score a cat food can receive is 100. Points are added or removed based on the score calculation rules.

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