How many IAMS products are rated?

16 IAMS products are rated by PetFoodRate, with an average score of 71/100 (B).

What is the best IAMS product?

The highest-rated IAMS product in our database is IAMS NATURALLY (grade B).

Is IAMS a good brand?

Based on its rated products, IAMS averages 71/100, 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.

Pet food brand

IAMS

BAverage score: 71/100 (Good)

Discover the 16 IAMS 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

IAMS averages 71/100 (B) across 16 graded products, 12 of them A or B. It is strongest on "Few undesirables" and weakest on "Ingredient transparency". Top-rated product: IAMS IAMS NATURALLY (82/100).

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

The IAMS profile across 5 criteria

Average of the A–E sub-scores across the 16 graded IAMS products. The brand is strongest on "Few undesirables" and weakest on "Ingredient transparency".

Protein qualityB · 73/100
Nutritional balanceC · 69/100
Few undesirablesA · 85/100
Ingredient transparencyD · 52/100
Species fitB · 72/100

All IAMS products graded

B82

IAMS NATURALLY

dry fooddogs

Puppy Small Medium Dog

Indoor Weight Hairball Cat

dry foodcats7.00€/kg

#10

B73

Sterilised Saumon Cat

dry foodcats6.00€/kg

#11

B73

Sterilised Chicken Cat

dry foodcats6.00€/kg

#12

B72

Senior Large Breed Dog

dry fooddogs5.00€/kg

#13

C60

Puppy Large Breed Poulet

dry fooddogs4.50€/kg

#14

C58

Vitality Adult Poulet

dry foodcats6.50€/kg

#15

C58

ProActive Health Adult

dry fooddogs3.80€/kg

#16

C56

ProActive Health Indoor Cat

dry foodcats6.50€/kg

Our verdict on IAMS

IAMS offers 16 products in our database, covering 1 food type and 2 species. The brand average score is 71/100, a grade B (Good). This score evolves whenever we add products or update our methodology.

Understand the grade

Articles about IAMS

Brand review

Iams and Eukanuba honest review: the Mars brands between B and C

Iams ProActive scores C (58/100), Eukanuba Adult scores C (60/100). Two average Mars brands. We analyse why and show alternatives.

Grade distribution

The IAMS profile across 5 criteria

All IAMS products graded

Our verdict on IAMS

Articles about IAMS

Iams and Eukanuba honest review: the Mars brands between B and C

Keep exploring

Frequently asked questions

PetFoodRate is now available for iPhone