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Hill's Science Plan Perfect Weight & Active Mobility Large Breed Adult Dog Food with Chicken – —

Hill's Science Plan

Hill's Science Plan Perfect Weight & Active Mobility Large Breed Adult Dog Food with Chicken review

56.8/100Good
DryAdult

A slimming kibble with a joint brief attached, written for big dogs carrying more than their frames want. Fibre is pushed to 13.3%, so a full-looking bowl arrives with fewer calories in it. It sits in our Good band, and for a large dog on a diet whose hips need thinking about it does a specific job properly.

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Our view

Likely to suit

  • Large breed adults carrying extra weight
  • One eye on the joints: pork cartilage supplies the chondroitin, crustacean shell the glucosamine
  • Dogs that circle the kitchen between meals
  • The meat named at the top, chicken and turkey meal at 15% total poultry
  • Big dogs that still work, at 321 kcal per 100g with protein holding at 28.2% of dry matter

Worth watching

  • Fish oil at 1.9%, so not fish free
  • Crustacean shell puts shellfish in the bowl
  • Wheat second and maize just below
  • That much fibre is a big change, so take a week over the switch

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

How this scores

How we score
56.8/100Good
Protein and processingGood
Nutritional balanceGood
TransparencyGood
ValueGood

The details

Dog fit

Listed for large breed adults. Feed to the weight your vet is aiming for, not the one on the scales today.

Food type

Dry

Life stage

Adult

Breed size

Large

Main protein

Chicken

The score, in context
  1. Hill's Science Plan Perfect Weight & Active Mobility Large Breed Adult Dog Food with Chicken 56.8

All one Good. Typical dry food: Good.

The nutrition side does well for a diet food; wheat, maize, a purified fibre and a few unnamed entries hold it level with the median.

What's in it
  • Chicken and turkey meal15%The dried form, with chicken printed at 9% and turkey the balance.
  • WheatSecond on the list.
  • Pea bran mealOne of the four fibres.
  • Maize, maize protein mealThe protein meal helps the protein figure along.
  • DigestKeeps a reduced-calorie kibble appetising. No species named.
  • Dried tomato pomace, cellulose, dried beet pulpCellulose is purified plant fibre, there to take up room in the stomach for next to no calories.
  • Flaxseed, coconut oil, vegetable oil
  • Fish oil1.9%Marine omega 3 for the joints.
  • Minerals, animal fat, dried carrotsAnimal fat names no species.
  • Pork cartilage, crustacean shell hydrolysateChondroitin and glucosamine sources, with no milligram dose printed.

Every trace mineral is dosed in print, zinc at 126 mg and iron at 72 mg per kilo, with copper, manganese, iodine and selenium.

Crustacean shell hydrolysate is a shellfish ingredient.

Named ingredients

Chicken and turkey meal (chicken 9%; total poultry 15%), wheat, pea bran meal, maize, maize protein meal, digest, dried tomato pomace, cellulose, dried beet pulp, flaxseed, coconut oil, vegetable oil, fish oil (1.9%), minerals, animal fat, dried carrots, pork cartilage (source of chondroitin sulphate), crustacean shell hydrolysate (source of glucosamine).
Against the range

One slimming kibble for large adults. Chicken and turkey meal opens the list at 15% total poultry, wheat and maize follow, and four fibres push crude fibre to 13.3%. Pork cartilage and crustacean shell hydrolysate are named as the joint sources, with fish oil at 1.9%.

Nutritional analysis

Declared analysis

Energy
320.7 kcal/100g
Protein

25.9%

Fat

12.9%

Fibre

13.3%

Ash

5.5%

Moisture

8%

Dry weight

Protein

28.2%

Fat

14%

Fibre

14.5%

Ash

6%

Carbs

37.3%

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

39.5%

Carbs

55.1%

Veg

1.7%

Oils

2.4%

Other

1.4%

Pricing & size
Price per kilo
£5.00 (RRP)
Pack
12 kg
A 15kg dog eats (our estimate)
235 to 290 g a day, 265 in the middle
Cost per day, 15kg dog
£1.33

A large dog eats well above our 15kg figure; the label puts an 80kg dog at 640 grams a day.

Middle of the dry market, a little more than the analysis alone would earn.

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