

Hill's Science Plan
Hill's Science Plan Adult 1-5 Large review
An Average grain-led kibble for big dogs in their prime, with maize and wheat ahead of the poultry. It earns its place on the joint side, pork cartilage and a crustacean shell hydrolysate both in the recipe, and the poultry percentages are printed in full.
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Our view
Likely to suit
- Large-breed adults between one and five, the window the bag names
- Owners who want joint ingredients in the food itself
- Dogs that thrive on poultry, at 15% in total
- Big dogs with an active routine; energy runs to 368 kcal per 100g
Worth watching
- Maize and wheat in the first two places, if wheat has upset your dog before
- Animal fat and digest with no species named, plus shellfish from the glucosamine source
- Low fibre at 1.7% of dry matter
Written by our editorial team. Independent guidance, not veterinary advice.
How this scores
How we scoreThe details
Dog fit
Listed for large adults aged one to five. This is not a lean recipe, so measure portions in a quiet week; the label's chart reaches 640 grams a day for an 80kg dog.
Dry
Adult
Large
Chicken
The score, in context
- Hill's Science Plan Adult 1-5 Large 42.8
All one Average. Typical dry food: Good.
Grain in the first two places costs it far more than anything in the analysis does.
What's in it
- MaizeDigestible once cooked.
- WheatThe grain an intolerance story usually comes back to.
- Chicken and turkey meal10% chicken, 15% poultryA dried meal, so the share survives into the kibble.
- Animal fatNo animal named.
- Broken rice
- DigestThe palatant, species unstated.
- Maize protein meal, soybean mealPlant protein on top of the grain.
- Vegetable oil, dried beet pulp, minerals, flaxseedThe oil names no plant.
- Oat bran, fructo-oligosaccharides (ActivBiome+)0.6%Prebiotic fibres for the gut's own bacteria.
- Pork cartilage, crustacean shell hydrolysateChondroitin and glucosamine sources, with no dose printed for either.
Zinc, iron, copper, manganese, iodine and selenium dosed per kilo in print, with a natural antioxidant.
The glucosamine comes from crustacean shell, so this is not shellfish free.
Named ingredients
Against the range
Nutritional analysis
Declared analysis
23.2%
14.4%
1.6%
5.2%
8%
Dry weight
25.2%
15.7%
1.7%
5.7%
51.7%
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.
20.2%
72.7%
5.7%
1.4%
Pricing & size
- Price per kilo
- £4.29 (RRP)
- Pack
- 18 kg, 14 kg, 2.5 kg
- A 15kg dog eats (our estimate)
- 220 to 265 g a day, 245 in the middle
- Cost per day, 15kg dog
- £1.05
Large-breed dogs usually weigh well over the 15kg our daily figure assumes, so expect the real cost to run higher.
Middle of the market for a dry food, and you pay a little more than the analysis alone would justify.
Ingredients and nutrition are taken from manufacturer data. Retailer pricing is not yet live for this food.
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