

Hill's Science Plan
Hill's Science Plan Perfect Digestion Large Breed Adult 1+ Dog Food with Chicken and Brown Rice review
A large-breed kibble with a named fibre blend at its centre: ActivBiome+ Digestion at 4%, its five parts printed. It sits in our Average band, held there by a cereal-heavy base. For a big dog whose stools firm up on it, the blend has done the job it was put there for.
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Our view
Likely to suit
- Large-breed adults from a year old with an unsettled gut
- Owners who want a fibre blend declared with a percentage and its components
- Big dogs suited by moderate fat, at 11.7%
- A dosed mineral panel, zinc at 147 mg and iron at 83.7 mg per kilo
Worth watching
- Wheat and maize in the first two places
- Animal fat and digest unnamed, which a strict exclusion diet needs
- Carbohydrate at 59.3% of dry matter, against 46.2% for a typical dry food
Written by our editorial team. Independent guidance, not veterinary advice.
How this scores
How we scoreThe details
Dog fit
Listed for large-breed adults and seniors. A large dog eats considerably more than a 15kg one, so start from the label's feeding table and let condition settle the rest.
Dry
Adult, Senior
Large
Chicken
The score, in context
- Hill's Science Plan Perfect Digestion Large Breed Adult 1+ Dog Food with Chicken and Brown Rice 37.6
All one Average. Typical dry food: Good.
Cereal leads and named poultry stops at 10%, which sets the distance from the typical dry food; the declared fibre blend is more than most digestive kibbles commit to.
What's in it
- Wheat, maizeSet the carbohydrate load.
- Chicken and turkey meal6% chicken, 10% total poultryRendered and dried, so more protein than fresh meat at the same share.
- Animal fatThe main energy source, no animal given.
- DigestThe palatant, equally unspecific.
- Broken rice
- Maize protein mealPlant protein concentrate doing part of the meat's job.
- Brown rice, barley, oats4%, 3.2%, 3.2%A wide spread of starches.
- Ground pecan shell, dried beet pulp, flaxseed, dried citrus pulp, dried cranberries4% as a blendActivBiome+ Digestion. Pecan shell adds bulk, beet pulp ferments gently, citrus and cranberry bring soluble fibre.
- Minerals
Iron, iodine, copper, manganese, zinc and selenium dosed per kilo, with a natural antioxidant.
No glucosamine or chondroitin source on a large-breed label.
Named ingredients
Against the range
One large-breed adult kibble. Wheat and maize lead, with broken rice, brown rice, barley and oats behind. The animal protein is a chicken and turkey meal at 10% total poultry, 6% of it chicken, with maize protein meal adding plant protein. Animal fat and digest name no animal. The ActivBiome+ Digestion blend is declared at 4% with all five parts named.
Nutritional analysis
Declared analysis
18.4%
11.7%
2.6%
4.8%
8%
Dry weight
20%
12.7%
2.8%
5.2%
59.3%
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.
19.3%
70.5%
4.4%
5.8%
Pricing & size
- Price per kilo
- £5.00 (RRP)
- Pack
- 14 kg
- A 15kg dog eats (our estimate)
- 215 to 260 g a day, 240 in the middle
- Cost per day, 15kg dog
- £1.20
A mid-range price, set slightly above the analysis.
Ingredients and nutrition are taken from manufacturer data. Retailer pricing is not yet live for this food.
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