Skip to content
Off the Leash
K9 Optimum Adult Maxi Breed – —

K9 Optimum

K9 Optimum Adult Maxi Breed review

60.1/100Good
DryAdult

A well-labelled everyday kibble for big adult dogs, in our Good band. It puts its meat where you can check it, two chicken entries with their shares, and it finishes with a run of joint ingredients for a frame with years of weight-bearing ahead. None of those joint extras carries a dose.

Where to buy: coming soon
Live retailer links are coming soon. Once we have them from UK retailers, where to buy and the best price will appear here.

Our view

Likely to suit

  • Large-breed adults. The recipe and the feeding table are both drawn around them
  • Owners thinking ahead about joints: glucosamine, methylsulphonylmethane and green lipped mussel are all listed
  • Dogs happy on chicken, the only meat besides salmon
  • Animal ingredients named, from the chicken fat to the salmon oil
  • Steadier big dogs, as the maker's table assumes low activity

Worth watching

  • Salmon and salmon oil, so no part of the bag is fish free
  • Mostly chicken, which rules it out after a past reaction to chicken
  • A big dog in hard work will need more than the low-activity table shows

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

How this scores

How we score
60.1/100Good
Protein and processingAverage
Nutritional balanceAverage
TransparencyOutstanding
ValueGood

The details

Dog fit

Listed for large adult dogs. Portion from the label's table, which starts at 25kg and asks 285 to 330 grams for a dog of 25kg to 30kg, and add to it for a working dog.

Food type

Dry

Life stage

Adult

Breed size

Large

Main protein

Chicken

The score, in context
  1. K9 Optimum Adult Maxi Breed 60.1

All one Good. Typical dry food: Good.

Named meat does most of the work here; an ordinary rice and maize starch load is what holds nutritional balance back.

What's in it
  • Chicken20%Freshly prepared; most of its weight is water lost in the oven.
  • Chicken, dried17%Pulls more protein weight than its place on the list suggests.
  • Rice, maize
  • Chicken fat, chicken gravyNamed to the bird, not left as unspecified animal fat.
  • Salmon4%Marine omega for skin, coat and joints. Fish in a chicken food.
  • Whole oats, beet pulpOats bring fibre, manganese and B vitamins; beet pulp keeps stools in shape.
  • Prairie meal, brewers yeast, egg powder, minerals
  • Salmon oil
  • Glucosamine, methylsulphonylmethane, NZ green lipped musselRespectable picks for a large frame, with no milligram figure against any of them.
  • Turmeric, marigold, MOS, FOS, yucca, blackcurrant, rosemary, pomegranate

A fully dosed panel, with taurine at 850 mg per kilo for heart muscle, carnitine at 500 mg, and zinc as both a glycine chelate and a sulphate.

Named ingredients

Chicken (20%), Chicken Dried (17%), Rice, Maize, Chicken Fat, Chicken Gravy, Salmon (4%), Whole Oats, Beet Pulp, Prairie Meal, Brewers Yeast, Egg Powder, Minerals, Salmon Oil, Turmeric, Marigold (Source Of Lutein), Mannan Oligosaccharides, Fructose Oligosaccharides, Glucosamine, Methylsulphonylmethane, Yucca Schidigera, Blackcurrant, Nz Green Lipped Mussel, Rosemary, Pomegranate
Against the range

One large-breed adult kibble. Chicken is declared fresh and dried with shares printed, salmon adds 4%, every fat is named to its source, and rice, maize and whole oats carry the starch.

Nutritional analysis

Declared analysis

Energy
358.5 kcal/100g

Estimated using Modified Atwater factors*

Protein

25%

Fat

15%

Fibre

3%

Ash

7%

Moisture

9%

Dry weight

Protein

27.5%

Fat

16.5%

Fibre

3.3%

Ash

7.7%

Carbs

45%

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

48.1%

Carbs

44.9%

Oils

5%

Other

2%

Pricing & size
Price per kilo
£3.17 (RRP)
Pack
2kg, 12kg
A 15kg dog eats (our estimate)
165 to 205 g a day, 185 in the middle
Cost per day, 15kg dog
£0.59

This is a big-dog food, so the daily amount sits well above the 15kg estimate: 285 to 330 grams for a dog of 25kg to 30kg.

Budget end of the dry market, though you pay a little more than the analysis shows.

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

Related dog food guides

Ranked shortlists that include foods like this one.

All reviews

Featured feeding accessories

All feeding accessories
Beco Steady Bowl

Beco

Steady Bowl

A recycled plastic dog bowl with a wide weighted base that stays where you put it.

£
View on Amazon
Petface Pet Food Scoop

Petface

Pet Food Scoop

A light plastic food scoop that makes measuring kibble a daily habit.

£
View on Amazon
Petface Ceramic Bone Bowl, 15cm

Petface

Ceramic Bone Bowl, 15cm

A 15cm ceramic dog bowl in cream and green, sized for toy and small breeds.

£
View on Amazon
Mason Cash Cane Dog Bowl, 20cm

Mason Cash

Cane Dog Bowl, 20cm

The Derbyshire stoneware classic, a 20cm dog bowl holding 1.6 litres and dishwasher safe.

££
View on Amazon

Reviewed by Off the Leash Editorial

Last updated 28 August 2026