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Hill's Science Plan Adult 1+ Healthy Mobility Large – —

Hill's Science Plan

Hill's Science Plan Adult 1+ Healthy Mobility Large review

35/100Average
DryAdultSenior

Hill's Science Plan Adult 1+ Healthy Mobility Large is written for big dogs whose joints have started to matter, and its case rests on omega 3s rather than on a supplement blend. Wheat and maize lead, chicken and turkey meal follows at 7% chicken and 11% total poultry, and fish oil is declared at 1.8% with flaxseed just ahead of it. It sits in our Average band, and the distance comes from how little of the bowl is animal rather than from anything a large dog would object to.

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

When a big dog starts thinking twice about the stairs, the bowl is a sensible first place to help.

  • Large breed adults and older dogs whose owners want joint minded feeding built into the everyday meal
  • Owners who want the omega source named and given a figure, with fish oil declared at 1.8%
  • Big dogs carrying a shade more than their frame wants, since this is a leaner recipe with fat declared at 12.9%
  • Households that need one bag to cover a mature adult and a senior, which the label does

Worth watching

Before you switch a big dog over, several things on the label repay a second read.

  • No glucosamine or chondroitin dose is printed, so the joint help you can point to is the fish oil and the flaxseed
  • Fish oil is one of the named ingredients, so this bag will not suit a dog kept away from fish
  • Protein is declared at 19.7%, on the gentle side for a large dog in hard work
  • A dog with a history of wheat trouble is worth a thought here, since wheat and maize open the list
  • Carbohydrate is estimated at 57.2% of dry matter where the typical adult dry food runs at 46.2%

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

How this scores

How we score
35/100Average
Protein and processingPoor
Nutritional balancePoor
TransparencyGood
ValueAverage

The Details

Dog fit

When a big dog starts thinking twice about the stairs, the bowl is a sensible first place to help. Before you switch a big dog over, several things on the label repay a second read.

Food type

Dry

Life stage

Adult, Senior

Breed size

Large

Main protein

Chicken

The score, in context

On our scale this comes out in the Average band, while the middle of the adult dry category reads Good. Protein and processing and nutritional balance both read Poor. The label explains it: two cereals ahead of the meat, total poultry at 11%, and estimated carbohydrate higher than a dry food usually carries. Transparency reads Good, which is the fairer half of the picture, earned by named percentages and printed doses. This is a food designed around a target nutrient profile and one specific job, keeping a big dog moving, and a general nutrition scale is not built to hand out marks for that brief.

What's in it

Ingredients, as declared: Wheat, maize, chicken and turkey meal (chicken 7%; total poultry 11%), digest, animal fat, maize protein meal, flaxseed, fish oil (1.8%), vegetable oil, minerals, pea bran meal.

Named ingredients

Wheat, maize, chicken and turkey meal (chicken 7%; total poultry 11%), digest, animal fat, maize protein meal, flaxseed, fish oil (1.8%), vegetable oil, minerals, pea bran meal.

Nutritional additives

ADDITIVES PER KG: Nutritional additives: 3b103 (Iron) 77.8mg, 3b202 (Iodine) 1.9mg, 3b405 (Copper) 7.7mg, 3b502 (Manganese) 8.1mg, 3b603 (Zinc) 136mg, 3b801 (Selenium) 0.2mg, with natural antioxidant.

Ingredient notes

Wheat comes first and maize second, so the shape of this kibble is clear from the top of the label. In third place is chicken and turkey meal, 7% chicken inside 11% total poultry. Because a meal goes in already dried, little of that 11% is lost by the time the food is finished. It is a modest animal share by any reading of the label.

The mobility case is built on omega 3. Fish oil is declared at 1.8% and flaxseed sits just ahead of it, and marine omega 3s are what owners most often reach for when a dog's joints are the concern. There is no printed glucosamine or chondroitin dose, so what you are buying is a steady daily helping of fish oil inside a complete food. For plenty of big dogs that is the practical version of the same idea.

Digest sits unusually high, fourth on the list, with animal fat just behind it. Digest is the palatant that makes a lean kibble worth eating, and its placement suggests it is doing real work here. Neither entry names an animal, so the label cannot be read as poultry only, and with fish oil present the recipe rules itself out of a fish free trial as well.

The analysis is on the lean side throughout. Protein converts to 21.4% of dry matter and fat to 14.0%, both gentle for a dry food, while estimated carbohydrate reaches 57.2% against 46.2% for the typical adult dry food. Fibre is 2.6% of dry matter and pea bran meal at the foot of the list is what supplies it. Calcium comes out at 0.67% of dry matter, a normal adult figure.

The trace minerals each carry a figure: zinc at 136 mg per kilo, iron at 77.8 mg, copper at 7.7 mg, manganese at 8.1 mg, iodine at 1.9 mg and selenium at 0.2 mg. A natural antioxidant is named as the preservative. That kind of declaration is a settled habit of this brand and worth noticing on any label.

Price and value

Sold as a 14kg bag.

For portioning, the standard maintenance estimate of 110 kcal × bodyweight^0.75 puts a 15kg adult in moderate condition at about 233 grams a day, and a large dog scales up from there. The label's table runs to 800 grams a day for a dog of 80kg and over, so take the first week from the bag and let condition steer you afterwards.

Nutritional analysis

Declared analysis

Energy
361.2 kcal/100g
Protein

19.7%

Fat

12.9%

Fibre

2.4%

Ash

4.4%

Moisture

8%

Dry weight

Protein

21.4%

Fat

14%

Fibre

2.6%

Ash

4.8%

Carbs

57.2%

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

66.2%

Oils

6%

Other

2%

Pricing & size
Pack size
14 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