Parent company: Mars Petcare ·
Origin: US ·
Founded: 1946 ·
Lifetime recalls: 0
Evidence Base Score: 30/100 — Very Poor
✓ Publicly meets WSAVA's recommended criteria
Editorial Review
Iams scores in the upper tier on Chowmark. Founded in 1946 by Paul F. Iams in Dayton, Ohio — the same founder who later created Eukanuba as a premium extension of his brand — Iams is now owned by Mars Petcare and is one of the five brands most consistently cited by veterinarians as meeting WSAVA Global Nutrition Guidelines.
The brand has recorded one lifetime recall: a 2007 voluntary recall of specific Iams dry dog food products due to potential Salmonella contamination. This was part of a broader industry-wide recall event that year. No recalls have been recorded in the past five years.
Iams meets WSAVA Global Nutrition Guidelines. The brand employs board-certified veterinary nutritionists, conducts AAFCO feeding trials, and has peer-reviewed research behind its core formulas. The Iams ProActive Health line is designed around the same evidence-based nutrition principles that make Eukanuba — its premium sister brand under Mars Petcare — a top-tier recommendation.
The Paul Iams connection matters for context: Iams founded his company in 1946 on the principle that dogs and cats should eat meat-based diets rather than the grain-heavy, by-product-heavy formulas that dominated the market at the time. That founding philosophy is still reflected in the brand's ingredient approach. Eukanuba was created by Iams in 1969 as a higher-protein, performance-oriented extension. When Mars Petcare acquired both brands from Procter & Gamble in 2014, the sister-brand relationship was preserved.
Iams is positioned as the accessible everyday option within the Mars Petcare WSAVA-compliant portfolio. Eukanuba is the premium, performance-oriented option. Both meet WSAVA guidelines. Iams is typically 20–30% less expensive than Eukanuba at retail.
The bottom line: Iams is one of Chowmark's recommended brands for pet owners who want WSAVA-compliant, evidence-based nutrition at an accessible price point. It has a clean recent safety record, a strong research foundation, and genuine veterinary credibility. For pet owners who want the same evidence base at a premium price with more breed-specific formulas, Eukanuba is the natural step up.