Pet food brand

B

Hill's Science Diet

B Average score: 72/100 (Good)

Discover the 3 Hill's Science Diet products graded A to E by PetFoodRate. Our independent analysis covers protein quality, nutritional value, absence of undesirables, label transparency, and species adaptability.

In short

Hill's Science Diet averages 72/100 (B) across 3 graded products, 2 of them A or B. It is strongest on "Few undesirables" and weakest on "Ingredient transparency". Top-rated product: Hill's Science Diet Hill's Science Diet Hairball Control (77/100).

By Theo Blanchard · reviewed by Max Kowalski · updated June 2026 · independent grading, no sponsorship

A
0
B
2
C
1
D
0
E
0

The Hill's Science Diet profile across 5 criteria

Average of the A–E sub-scores across the 3 graded Hill's Science Diet products. The brand is strongest on "Few undesirables" and weakest on "Ingredient transparency".

  • Protein quality C · 65/100
  • Nutritional balance B · 75/100
  • Few undesirables A · 90/100
  • Ingredient transparency C · 60/100
  • Species fit B · 75/100

All Hill's Science Diet products graded

#1
B 77
Hill's Science Diet Hairball Control
dry food dogs
#2
B 77
Large breed puppy
dry food dogs
#3
C 63
Adult 1-6
dry food dogs

Our verdict on Hill's Science Diet

Hill's Science Diet offers 3 products in our database, covering 1 food type and 1 species. The brand average score is 72/100, a grade B (Good). This score evolves whenever we add products or update our methodology.

Understand the grade

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Frequently asked questions

How many Hill's Science Diet products are rated?

3 Hill's Science Diet products are rated by PetFoodRate, with an average score of 72/100 (B).

What is the best Hill's Science Diet product?

The highest-rated Hill's Science Diet product in our database is Hill's Science Diet Hairball Control (grade B).

Is Hill's Science Diet a good brand?

Based on its rated products, Hill's Science Diet averages 72/100, i.e. B on our A to E scale. Quality can vary across ranges: check each product's grade.

How does PetFoodRate rate brands?

Each product is graded A to E on five axes (proteins, nutrition, undesirables, transparency, suitability). A brand's score is the average of its products; only brands with at least 10 rated products enter the comparative ranking.