What is the technical score of Hill's Science Diet Adult?

Hill's Science Diet Adult (Hill's Science Diet) scores 74.2/100 under the My Pet Magazine methodology — a weighted average of the IDNM nutrient density index (63 points) and the IPFI ingredient purity index (80 points), by the formula (IDNM × 0.55) + (IPFI × 0.45). The analysis is 100% algorithmic, with no interference from brands.

How much protein does Hill's Science Diet Adult have?

On a dry-matter basis (removing the effect of moisture), Hill's Science Diet Adult has 22.22% protein and 12.78% fat. Converting to a dry-matter basis allows a fair comparison between foods for dogs with different moisture levels.

Is Hill's Science Diet Adult a good food for dogs?

Under the My Pet Magazine classification, Hill's Science Diet Adult is "Solid" (score 74.2/100). Strengths: fresh meat first ingredient. Talk to a veterinarian before changing the diet of your dog.

Hill's Science Diet Adult

Name: Hill's Science Diet Adult
Brand: Hill's Science Diet

Manufacturer: Hill's Science Diet

74.2Technical Score

The Hill's Science Diet Adult (Hill's Science Diet) earned a technical score of 74.2/100 (rated ✅ Solid) under the independent My Pet Magazine methodology, which combines the IDNM nutrient density index (63 pts) and the IPFI ingredient purity index (80 pts). On a dry-matter basis, this food for dogs delivers 22.22% protein and 12.78% fat. The analysis is computed by algorithm, with no payment or interference from brands.

Is Hill's Science Diet Adult good?

So-so. Hill's Science Diet Adult is in the "Solid" band (technical score 74.2/100), below our High Standard band. Compare it with the alternatives on this page. The score combines nutritional density (IDNM 63) and ingredient purity (IPFI 80), with 22.22% protein and 12.78% fat on a dry-matter basis. At 3675 kcal/kg, FEDIAF maintenance needs work out to 145–168 g per day for an adult dog weighing 10 kg (full table below).

Nutritional Analysis

IDNM (Nutrient Density)63 / 100

IPFI (Ingredient Purity)80 / 100

Final Score74.2

Dry-Matter Composition

Protein22.22%

Fat12.78%

Composition and Energy

Values as declared in the manufacturer guaranteed analysis (as-fed basis — as printed on the bag).

Nutritional composition of Hill's Science Diet Adult (metabolizable energy when available in the dataset)
Nutrient	Value
Crude protein	20 %
Crude fat	11.5 %
Crude fiber	4 %
Moisture	10 %
Metabolizable energy	3675 kcal/kg

How much to feed per day

Estimated daily serving (g/day) based on the metabolizable energy of this food (3675 kcal/kg) and the maintenance energy requirement (MER) of an adult dog per FEDIAF 2024, from the lowest value (low-activity dog; neutered or indoor cat) to the moderate one (moderately active dog; active cat). It is a starting point: adjust to your pet's body condition and your veterinarian's advice. The calculation ignores age, neutering (in dogs) and individual clinical conditions.

Recommended daily serving in grams per day of Hill's Science Diet Adult by the weight of the dog
Weight of the dog	Energy requirement	Recommended serving
5 kg	318–368 kcal/day	86–100 g/day
10 kg	534–619 kcal/day	145–168 g/day
20 kg	898–1040 kcal/day	244–283 g/day
30 kg	1218–1410 kcal/day	331–384 g/day
40 kg	1511–1750 kcal/day	411–476 g/day

Formula: maintenance energy (kcal/day) = coefficient × weight(kg)^exponent. Dogs: coefficient 95 (low activity) to 110 (moderate activity), exponent 0.75 (FEDIAF 2024, Table VII-7, p. 55). Cats: coefficient 75 (neutered or indoor) to 100 (active), exponent 0.67 (FEDIAF 2024, Table VII-9, p. 57). Portion (g/day) = energy requirement ÷ (food kcal/kg ÷ 1000). Source: FEDIAF, Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs, July 2024.

Ingredients

1Chicken
2Cracked Pearled Barley
3Brown Rice
4Brewers Rice
5Whole Grain Wheat
6Whole Grain Corn
7Corn Protein Meal
8Chicken Meal
9Chicken Fat
10Chicken Liver Flavor

What we like

✓fresh meat first ingredient

🥇

Feeding TrialsAAFCO feeding trial declared: +5 pts (Gold level)

✓ Verified data

www.chewy.com (as-fed guaranteed analysis from the label) — verified 2026-08-30

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Frequently asked questions about Hill's Science Diet Adult

What is the technical score of Hill's Science Diet Adult?: Hill's Science Diet Adult (Hill's Science Diet) scores 74.2/100 under the My Pet Magazine methodology — a weighted average of the IDNM nutrient density index (63 points) and the IPFI ingredient purity index (80 points), by the formula (IDNM × 0.55) + (IPFI × 0.45). The analysis is 100% algorithmic, with no interference from brands.
How much protein does Hill's Science Diet Adult have?: On a dry-matter basis (removing the effect of moisture), Hill's Science Diet Adult has 22.22% protein and 12.78% fat. Converting to a dry-matter basis allows a fair comparison between foods for dogs with different moisture levels.
Is Hill's Science Diet Adult a good food for dogs?: Under the My Pet Magazine classification, Hill's Science Diet Adult is "Solid" (score 74.2/100). Strengths: fresh meat first ingredient. Talk to a veterinarian before changing the diet of your dog.

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