Hill's · dry

Hill’s Science Plan Adult 1+ Perfect Weight Large review

Name: Hill's Science Plan Adult 1+ Perfect Weight Large
Brand: Hill's

Avoid

One of the weakest dry foods we have rated. The label keeps too much vague. Feeding it costs about £1.15 a day for a typical adult dog - the breakdown below shows exactly what that buys.

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Label last checked July 17, 2026

Image © Hill's

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Top 88%scores higher than 12% of rated foodsacross all 3530 foods we've scored

Avoidscore bandthe dot marks where it sits among every food we've rated

£1.15 approx.per day for a 15 kg dogcheaper than 27% of dry foods

316kcal per 100 g

Where the points went

The full breakdown, exactly as the algorithm scored it. How our rating works

Ingredient quality

Weighted ingredient quality 37/100 across 14 ingredients (no percentages declared - position-based estimates used). Named meat is only 12% of the recognised recipe, so the quality score is anchored down towards a plant-led food.

13.2 / 40

Label clarity

Vague category terms on the label (Cellulose, Digest, Animal Fat) - naming points withheld; no percentages declared at all - the recipe is unverifiable; meat sources named (+2); variable-composition wording - fixed-formula points withheld.

2 / 15

Additives

No artificial colours, flavours, controversial preservatives or added sugars found.

10 / 10

Red flags

Digest at position 7 (-6); Animal Fat at position 10 (-6).

-12 / 0

Meat content

Meat content not declared and no named meat leads the label.

0 / 15

Nutritional balance

Estimated carbohydrate 42% dry matter (moderate); fat 12.3% DM in the healthy band; fibre 13.2% DM (+0); ash 5.5% DM - sensible mineral load (+2); functional extras: omega-3 source (+1).

5.2 / 10

Processing

Assumed extruded kibble (standard high-heat process).

6 / 10

ODF Score

Algorithm v1.4.0 · scored July 28, 2026 · full methodology public

24 / 100

Our analysis

Breaking the 24 down: the biggest single loss is ingredient quality, where it takes 13.2 of a possible 40. Its strongest showing is additives at 10 of 10. On top of that, 12 points are deducted outright for red-flag ingredients - a penalty applied before anything else is counted, which is why the total lands where it does.

The label declares no meat percentage at all, so there is no way to verify how much of the recipe is animal protein, and the ingredient list leans on vague groupings instead of naming what is actually in the bag.

At about £1.15 a day to feed a 15kg dog, the question is not whether it is cheap but whether the label justifies the price - and on our scoring, it does not.

Ingredients

Straight from the label, grouped by role - every ingredient is coloured by our published classification and links to its full page.

Meat & fish

Chicken and Turkey Meal Digest Animal Fat

Carbs & grains

Wheat Maize Gluten Meal Maize Cellulose

Fruit & veg

Pea Bran Meal Tomato Pomace Dried Beet Pulp Dried Carrots

Oils & fats

Coconut Oil

Supplements & extras

Flaxseed Minerals

Good qualityAcceptable / watch the amountRed flagGeneric / neutralOutlined = first five on the label

Feeding & cost

What a bag actually costs to feed - worked out per dog, not per pack.

Pack size	RRP	Per kg
12 kg	£59.99	£5.00

How heavy is your dog?

A typical 15 kg adult dog needs about 229 g a day = £1.15 / day, £34.96 / month.

How we work this out

Energy: an adult dog at rest needs about 95 × weight^0.75 kcal a day (the FEDIAF maintenance formula - a 15 kg dog works out near 725 kcal).
Portion: divide that by this food's energy density, 316 kcal/100g, to get the grams above - a denser food needs fewer grams.
Cost: multiply the grams by this food's price, £5.00 / kg, for the daily cost, then by 30.4 days for the month.

Estimates scale to your dog's weight and the food's calorie density - a denser food needs fewer grams. A rough guide; always follow the pack. Try the full feeding calculator

Nutrition

Declared analysis converted to a dry-matter basis, so wet and dry foods compare fairly.

Protein

27.5 % DM

Directory average: 28.2

Fat

12.3 % DM

Directory average: 14.9

Est. carbs

41.5 % DM

Directory average: 45.1

Fibre

13.2 % DM

Directory average: 3.7

Ash

5.5 % DM

Directory average: 7.9

Energy

316 kcal/100g

Directory average: 374

Carbohydrates are estimated: 100% minus protein, fat, fibre, ash and moisture.

Similar foods that score higher

Same type and life stage, better ODF Score, comparable price per day.

WolfworthyWolfworthy 80/20 Countryside90

£1.57 / day approx.See review

WolfworthyWolfworthy 80/20 Oily Fish90

£1.56 / day approx.See review

AkelaAkela 80:20 Fish Feast89

£1.10 / day approx.See review

AkelaAkela 80:20 Free-Range Chicken89

£1.18 / day approx.See review

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This is label analysis, not veterinary advice - if your dog has a health condition, talk to your vet before switching foods.