

Leader
Leader Adult Slimline Large Breed review
Leader Adult Slimline Large Breed is a lighter recipe for a big dog carrying more than it should. Dehydrated turkey heads the label at 21% and fat is pulled right down to 7.0%. Pea starch and potato starch go in beside the rice and oats, keeping the bowl the size of a proper dinner. Glucosamine and chondroitin are on the list for joints already working overtime, and L-lysine is declared at 2,860 mg per kilo. It finishes in our Good band.
Our view
Likely to suit
When the vet says the word diet, this is the sort of bag people go looking for.
- Large breed dogs that need to shed a few kilos, with fat held down to 7.0%
- Owners who want the portion to stay generous while the energy comes down, at an estimated 318 kcal per 100g
- Heavier dogs whose joints are under strain, as glucosamine and chondroitin are both written into the recipe
- Households where a big dog has been slowing down and eating at the same pace as ever
Worth watching
A few label facts matter more than usual on a slimming food.
- Chicken fat is in the recipe despite the turkey on the front, so this food is not chicken free
- Protein drops to 21.1% of dry matter, so keep the portion measured and the walks going to protect muscle while the weight comes off
Written by our editorial team. Independent guidance, not veterinary advice.
How this scores
How we scoreThe Details
Dog fit
When the vet says the word diet, this is the sort of bag people go looking for. A few label facts matter more than usual on a slimming food.
Dry
Adult
Large
Turkey
The score, in context
You will find this in our Good band, and the middle of the adult dry category is in that band as well. That puts a slimming recipe on the same footing as the everyday food it is replacing. Transparency reads Excellent and value Good, with protein and processing Average and nutritional balance Poor. The shape of a diet kibble explains most of it, because taking fat out means putting starch in, so carbohydrate climbs and both the protein figure and the energy come down with it. This is a food designed to let a big dog eat a proper bowlful while taking in less, and on that measure it delivers.
What's in it
Ingredients, as declared: 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.
Named ingredients
Nutritional additives
*Vitamins* | Additive | Per kg | |---|---| | Vitamin A | 17,250 iu | | Vitamin D3 | 1,625 iu | | Vitamin E (Alpha Tocopherol) | 200 iu | *Trace Elements* | Additive | Per kg | |---|---| | Copper Sulphate Pentahydrate | 28.0 mg | | Sodium Selenite | 0.3 mg | | Iron Sulphate Monohydrate | 187.5 mg | | Manganese Oxide | 65.0 mg | | Zinc Oxide | 79.0 mg | | Zinc Chelate of Amino Acid Hydrate | 162.5 mg | | Calcium Iodate Anhydrous | 2.4 mg | *Amino Acids* | Additive | Per kg | |---|---| | 3.2.3 L-Lysine Monohydrochloride | 2,860mg | *Antioxidants, Preservatives* | Additive | Per kg | |---|---| | (Preserved with tocopherol-rich extracts of natural origin) | — |
Ingredient notes
Dehydrated turkey at 21% leads the list. Turkey is a leaner meat than most and a sensible choice for a recipe like this. It goes in already dried, so the printed percentage survives the oven. It is worth being clear, though, that the fat further down the list is chicken fat, so the bird content is not turkey alone.
Pea starch and potato starch are the entries that separate this from the standard recipe. Each is close to pure carbohydrate, there to bulk out the kibble without bringing fat along with it. That is how a bowl can look the same size while carrying less energy, and it is also why estimated carbohydrate reaches 61.1% of dry matter against 46.2% for the typical adult dry food.
The cereals alongside the starches are rice, brown and white, plus dehulled oats. Oats are the most useful of the three here because they add fibre, which helps a hungry dog feel it has actually eaten. Crude fibre is declared at 2.5%, with alfalfa adding a little more behind it.
Fat is held at 7.0%, or 7.8% once the water is out, which is genuinely low for a dry food and the main lever this recipe pulls. Whole linseed still supplies plant omega 3, and L-lysine is declared at 2,860 mg per kilo, which shores up the amino acid side while total protein sits at 21.1% of dry matter.
Glucosamine hydrochloride and chondroitin sulphate come near the end with no printed amount between them. Think of them as steady background support for a heavy frame, not a measured joint dose. Chicory inulin is the prebiotic, dried cranberry and beetroot add antioxidants, and ginger and turmeric round off a plant tail that is more flourish than substance.
Price and value
£3.33 a kilo, in 2kg and 12kg bags.
Taking a 15kg adult dog in moderate condition as the yardstick, this works out at roughly 264 grams and £0.88 a day, assuming about 840 kcal a day (110 × bodyweight^0.75, the standard maintenance estimate). A large dog is a different sum again. The pack's guide asks 225 grams at 20kg and 306 grams at 30kg for a less active dog. A dog meant to lose weight should be fed for the weight it is heading towards.
Nutritional analysis
Declared analysis
Estimated using Modified Atwater factors*
19%
7%
2.5%
6.5%
10%
Dry weight
21.1%
7.8%
2.8%
7.2%
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.
21.6%
73.7%
0.8%
1.7%
2.2%
Pricing & size
- Pack size
- 2kg, 12kg
- Retailer pricing
- Coming soon
Live retailer pricing is not yet available for this food. Prices, cost per day and where to buy will appear here once retailer data is live.
Ingredients and nutrition are taken from manufacturer data. Retailer pricing is not yet live for this food.
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