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Hill's Science Plan Adult 1-5 Light Large – —

Hill's Science Plan

Hill's Science Plan Adult 1-5 Light Large review

47.1/100Average
DryAdult

Hill's Science Plan Adult 1-5 Light Large rebuilds a large breed recipe around fibre, and that is where the fullness in this light diet comes from. Energy is held to 312 kcal per 100g against the 357 a typical adult dry food carries. It lands in our Average band.

Where to buy: coming soon
Live retailer links are coming soon. Once we have them from UK retailers, where to buy and the best price will appear here.

Our view

Likely to suit

  • Large breed adults on a weight plan
  • Dogs who beg between meals: crude fibre at 12.3% keeps them feeling fed
  • Owners who like a number against the bird, with chicken at 9% and total poultry at 14%
  • Big dogs with some wear in the joints. Pork cartilage and crustacean shell hydrolysate are both on the list

Worth watching

  • Cellulose, there for fullness and not nourishment
  • Wheat behind the pea bran, and two fats listed without a source
  • Crustacean shell on the list, so not shellfish free

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

How this scores

How we score
47.1/100Average
Protein and processingAverage
Nutritional balanceAverage
TransparencyGood
ValueAverage

The details

Dog fit

Listed for large breed adults. High fibre means bigger and more frequent stools, so a dog with a fixed toilet routine may need an extra garden trip.

Food type

Dry

Life stage

Adult

Breed size

Large

Main protein

Chicken

The score, in context
  1. Hill's Science Plan Adult 1-5 Light Large 47.1

All one Average. Typical dry food: Good.

A purified fibre and two unnamed fats cost it on the recipe side, while the analysis does exactly what a light large breed food is meant to do.

What's in it
  • Pea bran mealThe fibrous outer coat of the pea, not the whole pea. Bulk with very little energy.
  • Chicken and turkey meal14%Chicken printed at 9%. A dried meal concentrates protein, not water.
  • Maize, wheat, broken riceWheat is the grain most often blamed when a dog stops agreeing with its dinner.
  • Maize protein meal, digestPlant protein.
  • CellulosePurified plant fibre, effectively indigestible. Fills a dog up for almost no calories.
  • Dried beet pulp
  • Vegetable oil, animal fatNeither names a source, so the food cannot anchor an exclusion trial.
  • Minerals, flaxseedFlaxseed for plant omega 3.
  • Oat bran, fructo-oligosaccharides0.6%The ActivBiome+ prebiotic blend.
  • Pork cartilage, crustacean shell hydrolysateChondroitin and glucosamine, with no dose printed.

Trace minerals dosed in print, zinc at 132 mg and iron at 75.2 mg per kilo, preserved with a natural antioxidant.

Named ingredients

Pea bran meal, chicken and turkey meal (chicken 9%; total poultry 14%), maize, wheat, broken rice, maize protein meal, digest, cellulose, dried beet pulp, vegetable oil, animal fat, minerals, flaxseed, 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.
Against the range

A single recipe. Pea bran meal leads and cellulose sits mid-list, lifting crude fibre to 13.4% of dry matter. Chicken and turkey meal follows with chicken at 9% and total poultry at 14%, then maize, wheat and broken rice for the starch.

Nutritional analysis

Declared analysis

Energy
312.5 kcal/100g
Protein

23%

Fat

9.5%

Fibre

12.3%

Ash

5.2%

Moisture

8%

Dry weight

Protein

25%

Fat

10.3%

Fibre

13.4%

Ash

5.7%

Carbs

45.6%

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

25.8%

Carbs

72.4%

Oils

0.6%

Other

1.2%

Pricing & size
Price per kilo
£4.50 (RRP)
Pack
18 kg, 14 kg
A 15kg dog eats (our estimate)
225 to 280 g a day, 255 in the middle
Cost per day, 15kg dog
£1.15

The label's guidance is written for big dogs, with an 80kg dog on 640 grams a day.

Middle of the market for a dry food, and 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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Reviewed by Off the Leash Editorial

Last updated 28 August 2026