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Leader Adult Slimline Medium Breed – —

Leader

Leader Adult Slimline Medium Breed review

51.8/100Good
DryAdult

Leader's turkey recipe lightened for medium dogs, and it lands in our Good band. The trade is visible in the analysis: fat down to 8.3% of dry matter, starch up to fill the bowl. L-lysine is added to shore up the protein side, which few slimming kibbles bother with.

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

  • Medium dogs that need to slim down without a visibly smaller dinner
  • A neutered dog whose appetite has outrun its day
  • Quieter dogs, at an estimated 321 kcal per 100g
  • Older medium dogs, with glucosamine and chondroitin on the list

Worth watching

  • Chicken fat behind the turkey, so not for a chicken-reactive dog
  • Carbohydrate at an estimated 59.6% of dry matter against 46.2% for typical adult dry food

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

How this scores

How we score
51.8/100Good
Protein and processingAverage
Nutritional balancePoor
TransparencyExcellent
ValueGood

The details

Dog fit

Listed for medium adult dogs. The pack's guide runs from 89 grams at 6kg to 293 grams at 30kg; portion for the weight you want the dog to reach.

Food type

Dry

Life stage

Adult

Breed size

Medium

Main protein

Turkey

The score, in context
  1. Leader Adult Slimline Medium Breed 51.8

All one Good. Typical dry food: Good.

Level with the typical adult kibble: fat comes out and starch goes in, which is the design working.

What's in it
  • Dehydrated turkey21%Dried before it goes in, so the number survives cooking. Naturally lean.
  • Brown rice, white rice
  • Pea starch, potato starchThe working parts of a slimming kibble: they fill the bowl without carrying fat.
  • Dehulled oats
  • Chicken fatA turkey-led food, not a turkey-only one.
  • Whole linseedPlant omega 3.
  • Minerals, alfalfa, hydrolysed liver proteinAlfalfa adds fibre to help a hungry dog feel full.
  • Yeast extract, chicory inulinInulin is the prebiotic, feeding the gut's own bacteria.
  • Cranberries, beetroot, rosemary, ginger, turmeric, yuccaThe flourish, though rosemary does real work slowing rancidity.
  • Glucosamine hydrochloride, chondroitin sulphateNo amounts declared. Background support, not a measured dose.

Vitamins A, D3 and E, trace minerals including zinc in two forms, and L-lysine at 2,630 mg per kilo to support the amino acid side.

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

One lighter turkey kibble for medium dogs. Dehydrated turkey is declared at 21%, fat at 7.5%, and pea and potato starch fill the bowl so a measured portion still looks like a meal.

Nutritional analysis

Declared analysis

Energy
321.4 kcal/100g

Estimated using Modified Atwater factors*

Protein

20%

Fat

7.5%

Fibre

2.4%

Ash

6.5%

Moisture

10%

Dry weight

Protein

22.2%

Fat

8.3%

Fibre

2.7%

Ash

7.2%

Carbs

59.6%

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)
205 g a day
Cost per day, 15kg dog
£0.68

The pack's guide puts a 15kg adult at 205 grams a day.

Budget end of the market for a dry food, though a little dear for 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