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Royal Canin Maxi Sterilised Care – —

Royal Canin

Royal Canin Maxi Sterilised Care review

37.5/100Average
DryAdultSenior

Written for the big dog whose appetite outlasts the operation, and it sits in our Average band. Fat is held down and fibre lifted, so a smaller ration still fills the bowl, while protein stays up at 30.4% of dry matter. The ingredients list does the deciding: maize first, and an unnamed bird behind it.

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Our view

Likely to suit

  • Neutered large adults whose appetite has outlasted their calorie needs
  • Holding a weight steady, with fat at 13.0% and fibre at 6.7%
  • Adults and seniors alike
  • Big frames carrying the years, with glucosamine and chondroitin listed
  • Dogs that bolt a bowl and look for more

Worth watching

  • Maize, wheat and maize gluten carrying much of the bowl
  • No bird named behind the poultry protein, and no animal behind the fats
  • Glucosamine from hydrolysed crustaceans, and fish oil too

Written by our editorial team. Independent guidance, not veterinary advice.

How this scores

How we score
37.5/100Average
Protein and processingPoor
Nutritional balanceGood
TransparencyPoor
ValueAverage

The details

Dog fit

Listed for neutered adult and senior dogs; the pack names no breed size, though Maxi is the large range. A neutered dog usually needs a little less than an unneutered one, so let the waistline set the scoop.

Food type

Dry

Life stage

Adult, Senior

Main protein

Poultry

The score, in context
  1. Royal Canin Maxi Sterilised Care 37.5

All one Average. Typical dry food: Good.

The sterilised design works as described; the reading falls on an ingredients list that opens on cereal and names neither the bird nor the fats.

What's in it
  • MaizeThe bag opens on cereal.
  • Dehydrated poultry proteinSubstantial with the water already out, but the bird is never named.
  • Wheat, maize glutenThe gluten adds plant protein to the figure on the front.
  • Vegetable fibresThe weight strategy runs on fibre.
  • Hydrolysed animal proteins, animal fatsNeither names an animal.
  • Vegetable protein isolateMore plant protein, which a dog uses less well than animal protein.
  • Beet pulp, psyllium husks and seedsPsyllium holds water in the gut; beet pulp works on stool quality.
  • Fish oil, soya oil, borage oilOmega 3 from the fish; gamma-linolenic acid from the borage.
  • Yeasts, minerals, marigold extract
  • Hydrolysed crustaceans, hydrolysed cartilageGlucosamine and chondroitin, neither with a dose. The crustaceans are shellfish.

L-carnitine at 200 mg per kilo for a dog that needs to stay trim, every trace mineral dosed, and clinoptilolite, a mineral clay that earns its place in the factory.

Moisture is not declared, so the dry-matter figures rest on an assumed 8%.

Named ingredients

Maize, dehydrated poultry protein, wheat, maize gluten, vegetable fibres, hydrolysed animal proteins, animal fats, vegetable protein isolate*, beet pulp, fish oil, yeasts and parts thereof, soya oil, minerals, psyllium husks and seeds, borage oil, hydrolysed crustaceans (source of glucosamine), marigold extract (source of lutein), hydrolysed cartilage (source of chondroitin).
Against the range

One kibble for large dogs after neutering. Maize leads with dehydrated poultry protein second, then wheat and maize gluten. Fat is held to 13.0%, fibre lifted to 6.7%, and L-carnitine dosed at 200 mg per kilo. Moisture is not declared, so the dry-matter figures assume 8%.

Nutritional analysis

Declared analysis

Energy
342.5 kcal/100g
Protein

28%

Fat

13%

Fibre

6.7%

Ash

5.8%

Dry weight

Protein

30.4%

Fat

14.1%

Fibre

7.3%

Ash

6.3%

Carbs

41.9%

As-fed composition

Estimated breakdown of the finished product by ingredient category, from the declared ingredient list and ingoing weights. These are estimates, not measurements.

Meat

28.4%

Carbs

64.1%

Veg

5.1%

Oils

2%

Other

0.5%

Pricing & size
Price per kilo
£5.26 (RRP)
Pack
12 kg
A 15kg dog eats (our estimate)
200 to 245 g a day, 225 in the middle
Cost per day, 15kg dog
£1.18

Most dogs on this bag will be well over the 15kg reference, so the daily figure for them is higher.

Middle of the market for a dry food, and the price runs ahead of what the analysis shows.

Ingredients and nutrition are taken from manufacturer data. Retailer pricing is not yet live for this food.

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Reviewed by Off the Leash Editorial

Last updated 28 August 2026