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Hill's Science Plan Mature Adult 7+ Medium – —

Hill's Science Plan

Hill's Science Plan Mature Adult 7+ Medium review

33.8/100Average
DryAdultSenior

Hill's Science Plan Mature Adult 7+ Medium is the straight down the middle member of the mature line. There is no calorie control and no small breed kibble, just an everyday bowl for a medium dog in its later years. Maize and wheat come first. The chicken and turkey meal behind them is 7% chicken within 12% total poultry, and the joint pair arrives as pork cartilage with a crustacean shell hydrolysate. Four bag sizes make it easy to trial and easy to live with. Our scoring places it in the Average band. That reflects the cereal share of the recipe, not the care taken in putting it together.

Where to buy: coming soon
Live retailer pricing is coming soon. Once we have prices from UK retailers, the best price, cost per day and where to buy will appear here.

Our view

Likely to suit

For a medium dog easing into the second half of life without any particular complaint, feeding does not get much more uncomplicated than this.

  • Medium dogs of seven and over that have no special dietary requirement to solve
  • Owners who want to try a bag before committing to a big one, with 2.5kg, 6kg, 14kg and 18kg all available
  • Older dogs starting to feel their joints, since chondroitin comes from pork cartilage and glucosamine from a crustacean shell hydrolysate
  • Dogs with an unenthusiastic appetite, because digest is sprayed on precisely to make kibble worth eating
  • Households that want the trace minerals given as doses, with zinc at 134 mg and iron at 76.4 mg per kilo

Worth watching

Nothing here should alarm you, though a handful of label facts ought to shape your expectations.

  • Cereal leads the recipe, with maize first and wheat second
  • Crude fibre is low at 1.9%, which suits most dogs but gives little help to one that needs bulk to stay regular
  • The meat share is a modest part of the bag, with named poultry at 12% and chicken at 7%
  • Pinning down one particular protein is impossible here, since animal fat and digest do not name their animal
  • Estimated carbohydrate is 59.3% of dry matter where a typical adult dry food runs at 46.2%

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

How this scores

How we score
33.8/100Average
Protein and processingPoor
Nutritional balancePoor
TransparencyGood
ValueAverage

The Details

Dog fit

For a medium dog easing into the second half of life without any particular complaint, feeding does not get much more uncomplicated than this. Nothing here should alarm you, though a handful of label facts ought to shape your expectations.

Food type

Dry

Life stage

Adult, Senior

Breed size

Medium

Main protein

Chicken

The score, in context

Set beside the typical adult dry food, which our scoring reads as Good, this one finishes in the Average band. The sums behind it are plain enough. Estimated carbohydrate climbs to 59.3% of dry matter, protein converts to 19.0% of dry matter, and the named meat share stays in single figures. What a score cannot capture is consistency, which is Hill's real product: the same kibble, the same analysis and the same digestibility bag after bag. Transparency reads Good, and for a medium senior with nothing in particular to fix, this remains a straightforward food to keep in the cupboard.

What's in it

Ingredients, as declared: Maize, wheat, chicken and turkey meal (chicken 7%; total poultry 12%), animal fat, digest, vegetable oil, flaxseed, dried beet pulp, minerals, oat bran, fructo-oligosaccharides, pork cartilage (source of chondroitin sulphate), crustacean shell hydrolysate (source of glucosamine). ActivBiome+ Multi Benefit prebiotic blend (0.6%): Oat bran, fructo-oligosaccharides.

Named ingredients

Maize, wheat, chicken and turkey meal (chicken 7%; total poultry 12%), animal fat, digest, vegetable oil, flaxseed, dried beet pulp, minerals, oat bran, fructo-oligosaccharides, pork cartilage (source of chondroitin sulphate), crustacean shell hydrolysate (source of glucosamine). ActivBiome+ Multi Benefit prebiotic blend (0.6%): Oat bran, fructo-oligosaccharides.

Nutritional additives

ADDITIVES PER KG: Nutritional additives: 3b103 (Iron) 76.4mg, 3b202 (Iodine) 1.9mg, 3b405 (Copper) 7.5mg, 3b502 (Manganese) 7.9mg, 3b603 (Zinc) 134mg, 3b801 (Selenium) 0.2mg, with natural antioxidant.

Ingredient notes

Maize opens the list with wheat behind it. Maize is the steadier of the pair for most dogs, being less often implicated in food reactions than wheat. Both are cooked thoroughly, and that is what makes a cereal digestible for a dog in the first place. Between them they set carbohydrate at an estimated 54.6% as fed.

One entry carries the animal protein: a combined chicken and turkey meal at 7% chicken and 12% total poultry. Of the two birds turkey is the leaner one, and that explains how often it shows up in recipes for older dogs. Because meal is dried before inclusion, that 12% delivers more usable protein than the number looks like it should, though it remains a small proportion of the bag.

Animal fat sits third and is the main energy source, with fat declared at 13.3% as fed. Vegetable oil follows, another entry that names nothing in particular, and flaxseed supplies plant omega 3. None of the three tells you which animal or which plant, and that is the honest limitation of this label.

Dried beet pulp is the main fibre, a fermentable one that suits most guts, alongside the ActivBiome+ blend at 0.6% made from oat bran and fructo-oligosaccharides. This is not a recipe built around bulk in the bowl, with crude fibre at 2.1% of dry matter.

Pork cartilage and crustacean shell hydrolysate supply chondroitin and glucosamine without a printed dose between them. The mineral panel is dosed per kilo: zinc at 134 mg, iron at 76.4 mg, manganese at 7.9 mg, copper at 7.5 mg, iodine at 1.9 mg and selenium at 0.2 mg. Calcium converts to 0.84% of dry matter.

Price and value

Sold in 2.5kg, 6kg, 14kg and 18kg bags.

As a guide, a 15kg dog in moderate condition would eat roughly 231 grams a day, assuming around 840 kcal a day (110 × bodyweight^0.75, the standard maintenance estimate). Hill's own table asks 205 grams for a dog of that weight. Start between the two figures, and the waistline decides after that.

Nutritional analysis

Declared analysis

Energy
363.8 kcal/100g
Protein

17.5%

Fat

13.3%

Fibre

1.9%

Ash

4.7%

Moisture

8%

Dry weight

Protein

19%

Fat

14.5%

Fibre

2.1%

Ash

5.1%

Carbs

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.

Meat

23.4%

Carbs

66.7%

Oils

7.5%

Other

2.4%

Pricing & size
Pack size
18 kg, 14 kg, 6 kg, 2.5 kg
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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Reviewed by Off the Leash Editorial

Last updated 28 August 2026