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

Hill's Science Diet Adult Cat (Hill's Science Diet) scores 67.9/100 under the My Pet Magazine methodology — a weighted average of the IDNM nutrient density index (45 points) and the IPFI ingredient purity index (85 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 Cat have?

On a dry-matter basis (removing the effect of moisture), Hill's Science Diet Adult Cat has 32.61% protein and 18.48% fat. Converting to a dry-matter basis allows a fair comparison between foods for cats with different moisture levels.

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

Under the My Pet Magazine classification, Hill's Science Diet Adult Cat is "Solid" (score 67.9/100). Strengths: taurine declared, fresh meat first ingredient. Talk to a veterinarian before changing the diet of your cat.

Hill's Science Diet Adult Cat

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

Manufacturer: Hill's Science Diet

67.9Technical Score

The Hill's Science Diet Adult Cat (Hill's Science Diet) earned a technical score of 67.9/100 (rated ✅ Solid) under the independent My Pet Magazine methodology, which combines the IDNM nutrient density index (45 pts) and the IPFI ingredient purity index (85 pts). On a dry-matter basis, this food for cats delivers 32.61% protein and 18.48% fat. The analysis is computed by algorithm, with no payment or interference from brands.

Is Hill's Science Diet Adult Cat good?

So-so. Hill's Science Diet Adult Cat is in the "Solid" band (technical score 67.9/100), below our High Standard band. Compare it with the alternatives on this page. The score combines nutritional density (IDNM 45) and ingredient purity (IPFI 85), with 32.61% protein and 18.48% fat on a dry-matter basis. At 3873 kcal/kg, FEDIAF maintenance needs work out to 49–65 g per day for an adult cat weighing 4 kg (full table below).

Nutritional Analysis

IDNM (Nutrient Density)45 / 100

IPFI (Ingredient Purity)85 / 100

Final Score67.9

Dry-Matter Composition

Protein32.61%

Fat18.48%

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 Cat (metabolizable energy when available in the dataset)
Nutrient	Value
Crude protein	30 %
Crude fat	17 %
Crude fiber	5 %
Moisture	8 %
Metabolizable energy	3873 kcal/kg

How much to feed per day

Estimated daily serving (g/day) based on the metabolizable energy of this food (3873 kcal/kg) and the maintenance energy requirement (MER) of an adult cat 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 Cat by the weight of the cat
Weight of the cat	Energy requirement	Recommended serving
3 kg	157–209 kcal/day	40–54 g/day
4 kg	190–253 kcal/day	49–65 g/day
5 kg	220–294 kcal/day	57–76 g/day
6 kg	249–332 kcal/day	64–86 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
2Whole Grain Wheat
3Corn Protein Meal
4Whole Grain Corn
5Chicken Fat
6Chicken Meal
7Brewers Rice
8Dried Beet Pulp
9Soybean Meal
10Chicken Liver Flavor

What we like

✓taurine declared
✓fresh meat first ingredient

🥇

Feeding TrialsAAFCO feeding trial declared: +6 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 Cat

What is the technical score of Hill's Science Diet Adult Cat?: Hill's Science Diet Adult Cat (Hill's Science Diet) scores 67.9/100 under the My Pet Magazine methodology — a weighted average of the IDNM nutrient density index (45 points) and the IPFI ingredient purity index (85 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 Cat have?: On a dry-matter basis (removing the effect of moisture), Hill's Science Diet Adult Cat has 32.61% protein and 18.48% fat. Converting to a dry-matter basis allows a fair comparison between foods for cats with different moisture levels.
Is Hill's Science Diet Adult Cat a good food for cats?: Under the My Pet Magazine classification, Hill's Science Diet Adult Cat is "Solid" (score 67.9/100). Strengths: taurine declared, fresh meat first ingredient. Talk to a veterinarian before changing the diet of your cat.

Keep comparing

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