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Leader Adult Slimline Large Breed – —

Leader

Leader Adult Slimline Large Breed review

51.3/100Good
DryAdult

A slimming kibble for a big dog carrying more than it should, and it delivers on that. Fat is pulled down to 7.0% and two starches keep the bowl the size of a proper dinner. Glucosamine and chondroitin are on the list for joints already working hard. It finishes in our Good band.

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 dogs that need to shed a few kilos
  • A portion that stays generous while the energy drops, at an estimated 318 kcal per 100g
  • Heavier dogs with joints under strain
  • A big dog slowing down and still eating at the old pace

Worth watching

  • Chicken fat on the list despite the turkey on the front
  • Protein at 21.1% of dry matter. Keep portions measured and walks going to protect muscle

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

How this scores

How we score
51.3/100Good
Protein and processingAverage
Nutritional balancePoor
TransparencyExcellent
ValueGood

The details

Dog fit

Listed for large adult dogs. Feed for the weight the dog is heading towards, using the pack's guide (225 grams at 20kg for a less active dog).

Food type

Dry

Life stage

Adult

Breed size

Large

Main protein

Turkey

The score, in context
  1. Leader Adult Slimline Large Breed 51.3

All one Good. Typical dry food: Good.

Taking fat out means putting starch in, and the score reflects that trade on a food that does what it sets out to.

What's in it
  • Dehydrated turkey21%A lean meat, already dried, so the figure survives the oven.
  • Brown rice, white rice
  • Pea starch, potato starchClose to pure carbohydrate, there to bulk the kibble without fat. This is what separates it from the standard recipe.
  • Dehulled oatsThe fibre that helps a hungry dog feel it has eaten.
  • Chicken fatSo the bird content is not turkey alone.
  • Whole linseedPlant omega 3.
  • Minerals, alfalfa, hydrolysed liver protein, yeast extract
  • Chicory inulinThe prebiotic.
  • Cranberries, beetroot, rosemary, ginger, turmeric, yuccaMore flourish than substance.
  • Glucosamine hydrochloride, chondroitin sulphateNo printed amount. Background support for a heavy frame.

L-lysine at 2,860mg per kilo shores up the amino acids, alongside vitamins A, D3 and E and zinc partly as an amino acid chelate.

Named ingredients

Dehydrated Turkey (21%), Brown Rice, White Rice, Pea Starch, Potato Starch, Dehulled Oats, Chicken Fat, Whole Linseed, Minerals, Alfalfa, Hydrolysed Liver Protein, Yeast Extract, Chicory Inulin, Dried Cranberries, Dried Beetroot, Rosemary, Ginger, Turmeric, Glucosamine Hydrochloride, Yucca schidigera, Chondroitin Sulphate.
Against the range

Dehydrated turkey leads at 21%, with chicken fat further down. Pea starch and potato starch bulk the kibble beside rice and oats, so carbohydrate is estimated at 61.1% of dry matter and fat sits at 7.0%.

Nutritional analysis

Declared analysis

Energy
318.5 kcal/100g

Estimated using Modified Atwater factors*

Protein

19%

Fat

7%

Fibre

2.5%

Ash

6.5%

Moisture

10%

Dry weight

Protein

21.1%

Fat

7.8%

Fibre

2.8%

Ash

7.2%

Carbs

61.1%

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

21.6%

Carbs

73.7%

Veg

0.8%

Oils

1.7%

Other

2.2%

Pricing & size
Price per kilo
£3.33 (RRP)
Pack
2kg, 12kg
A 15kg dog eats (our estimate)
195 to 240 g a day, 220 in the middle
Cost per day, 15kg dog
£0.73

A large dog eats well over the 15kg figure: the pack asks 306 grams at 30kg for a less active dog.

Budget end of the dry market, though you pay a premium relative to 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