Skip to content
Off the Leash
Hill's Science Plan Light Small & Mini Mature Adult Dog Food with Chicken – —

Hill's Science Plan

Hill's Science Plan Light Small & Mini Mature Adult Dog Food with Chicken review

39.2/100Average
DryAdultSenior

Hill's Science Plan Light Small & Mini Mature Adult with Chicken asks one kibble to do two jobs. It keeps the weight off an older small dog and looks after joints that have covered a lot of ground. Wheat and maize lead the list ahead of chicken and turkey meal at 15% total poultry, and cellulose and pea bran meal carry crude fibre to 12.9%. Pork cartilage and crustacean shell hydrolysate bring chondroitin and glucosamine in at the end. It sits in our Average band, driven by how far down the list the meat sits, though for a settled older small dog whose calories need holding down it remains a workable everyday bag.

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

An older small dog who has slowed down needs less on the plate and rather more looking after in it.

  • Older small breed dogs carrying extra weight, since the food runs at 308 kcal per 100 grams where a typical adult dry food carries 357 kcal
  • Owners watching an ageing dog's joints, with chondroitin from pork cartilage and glucosamine from crustacean shell on the list
  • Small dogs who need to feel full, because crude fibre at 12.9% gives the bowl bulk without much energy
  • Households wanting a gut friendly touch, with the ActivBiome+ blend at 0.6% supplying oat bran and fructo-oligosaccharides

Worth watching

This one asks for a clear head about what it is doing and what it leaves to you.

  • Wheat and maize both come ahead of the meat, so the plant side leads this recipe
  • Protein is declared at 17.7%, which is modest for an older dog trying to hold on to muscle
  • The joint sources are named but carry no printed dose, so the amounts are anyone's guess
  • Pork and crustacean both feature alongside the poultry, worth knowing if you are avoiding either one

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

How this scores

How we score
39.2/100Average
Protein and processingAverage
Nutritional balancePoor
TransparencyGood
ValueAverage

The Details

Dog fit

An older small dog who has slowed down needs less on the plate and rather more looking after in it. This one asks for a clear head about what it is doing and what it leaves to you.

Food type

Dry

Life stage

Adult, Senior

Breed size

Small

Main protein

Chicken

The score, in context

Ingredient order tells most of this story. Wheat and maize sit above the chicken and turkey meal, which is declared as 9% chicken within 15% total poultry, and the analysis follows suit at 19.2% protein of dry matter and 50.1% estimated carbohydrate. That lands the food in our Average band, a step below the Good band the typical adult dry food occupies. Nutritional balance reads Poor and protein and processing Average, while transparency reads Good because the percentages that matter are printed on the pack. What a band cannot say is that this recipe is deliberately light, so part of the gap is the diet doing its job on purpose. If your older dog needs calories held down and joints thought about, this still answers, and a protein rich topper is an easy way to lift the rest.

What's in it

Ingredients, as declared: Wheat, maize, chicken and turkey meal (chicken 9%; total poultry 15%), pea bran meal, cellulose, barley, oats, digest, animal fat, flaxseed, dried beet pulp, vegetable oil, 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

Wheat, maize, chicken and turkey meal (chicken 9%; total poultry 15%), pea bran meal, cellulose, barley, oats, digest, animal fat, flaxseed, dried beet pulp, vegetable oil, 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) 75.5mg, 3b202 (Iodine) 1.9mg, 3b405 (Copper) 7.4mg, 3b502 (Manganese) 7.8mg, 3b603 (Zinc) 132mg, 3b801 (Selenium) 0.2mg, with natural antioxidant.

Ingredient notes

Wheat first and maize second is an unusual opening on a food at this level, and it is the single biggest reason the recipe reads the way it does. Cereal intolerance in dogs points at wheat more often than at anything else. If your dog has itched on cereal foods before, this bag deserves a second thought. For a dog with no such history, it is simply the structure of the biscuit.

Third comes the chicken and turkey meal, 9% chicken within a 15% poultry total. Meal is dried meat, so those percentages survive the cooking, but they still add up to a modest animal share and the finished protein of 19.2% of dry matter reflects it. On an older dog that is the figure to keep an eye on, because muscle is the thing age takes first and protein is what defends it.

Fibre is where the light promise is kept. Pea bran meal and cellulose push crude fibre to 12.9% as fed, or 14.0% of dry matter. Diet foods lean on cellulose for a reason. Purified plant fibre goes through a dog more or less untouched and brings bulk with almost no energy. It is effective at that one job and unremarkable in every other respect.

The mature half of the brief is handled at the end of the list. Pork cartilage supplies chondroitin sulphate and crustacean shell hydrolysate supplies glucosamine, the pair most commonly given to older dogs for joint comfort, though neither comes with a dose in print. ActivBiome+ is 0.6% of the recipe, oat bran with fructo-oligosaccharides, and it feeds the gut's own bacteria. Beet pulp and barley add fermentable fibre beside it.

Trace minerals are dosed on the label at 132 mg of zinc, 75.5 mg of iron, 7.8 mg of manganese, 7.4 mg of copper, 1.9 mg of iodine and 0.2 mg of selenium per kilo. Calcium sits at 0.88% of dry matter. Animal fat, digest and vegetable oil go unnamed, as they do on most labels built this way, and flaxseed adds a little plant omega 3 for an older coat.

Price and value

£4.83 a kilo, sold in a 2.5kg bag.

A 15kg adult dog in moderate condition would need roughly 273 grams a day to meet the usual 840 kcal maintenance estimate (110 × bodyweight^0.75), or £1.32 a day. Most dogs on this food are far smaller: the label asks 180 grams a day for a 10kg dog and 105 grams for a 5kg one.

Nutritional analysis

Declared analysis

Energy
308.1 kcal/100g
Protein

17.7%

Fat

10%

Fibre

12.9%

Ash

5.3%

Moisture

8%

Dry weight

Protein

19.2%

Fat

10.9%

Fibre

14%

Ash

5.8%

Carbs

50.1%

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

17.2%

Carbs

78.2%

Oils

0.7%

Other

3.8%

Pricing & size
Pack size
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.

Related dog food guides

Ranked shortlists that include foods like this one.

All reviews

Featured feeding accessories

All feeding accessories

Brackenwood

Slow Feeder Maze Bowl

Slows fast eaters and eases gulping at mealtimes.

From £12.99· 4 retailers
View

Tarn & Co

Raised Double Diner

Height-set stand for easier, tidier eating.

From £28.99· 3 retailers
View

Reviewed by Off the Leash Editorial

Last updated 28 August 2026