Brand Comparison · 2026

Iams vs Orijen

Iams (mass-market-priced kibble from a maker that meets 4 of WSAVA's 5 questions, for budget-conscious owners) and Orijen (high-protein, high-meat-inclusion boutique kibble; named in 12 reports in the FDA's 2019 DCM update) compared head-to-head on WSAVA manufacturer-quality criteria, AAFCO substantiation, monthly cost, and which dog each is best for in 2026. Iams meets 4 of 5 WSAVA criteria. Iams is roughly 67% less than Orijen.

The verdict

These sit at opposite ends of both price and evidence. Iams meets 4 of 5 WSAVA criteria, with a "formulated to meet" AAFCO label instead of feeding trials, at a mass-market $25-45/month. Orijen meets only 2 of 5, uses formulation-only substantiation, and is specifically named in the FDA's 2018-2022 DCM investigation, at a premium $80-130, its pitch being some of the highest meat-inclusion percentages on the market.

Pick Iams for a healthy adult dog on a tight budget when a maker meeting 4 of WSAVA's 5 questions is enough. Pick Orijen only for a healthy dog with no cardiac risk factors whose owner specifically values high meat inclusion and accepts the DCM and WSAVA trade-offs. On evidence and cost, Iams is dramatically the more sensible pick.

Key differences at a glance

Same parent group: Iams is listed under Mars Incorporated; Orijen is listed under Mars Incorporated (Champion Petfoods).
WSAVA manufacturer-quality: Iams meets 4 of 5 criteria vs 2 of 5 for Orijen.
Monthly cost: Iams runs roughly 67% less than Orijen for a typical 50 lb dog.
Heart-health context: Orijen appears in the FDA's diet-related DCM investigation, which has not established that any food caused the disease.

Quick comparison

Dimension	Iams	Orijen
Parent company	Mars Incorporated	Mars Incorporated (Champion Petfoods)
Category	Mass-market dry kibble	Boutique dry kibble
WSAVA criteria met	4 of 5	2 of 5
AAFCO substantiation	Formulation only	Formulation only
Full-time veterinary nutritionist	Yes	Yes
Credentialed formulator	Yes	Partial
AAFCO feeding trials	No	No
Owns manufacturing plants	Yes	Yes
Quality control program	Yes	Partial
Typical monthly cost (50 lb dog)	$25 – $45 / month	$80 – $130 / month

Mars Incorporated

Iams

Mass-market-priced kibble from a maker that meets 4 of WSAVA's 5 questions, for budget-conscious owners.

Strengths

Low price from a maker that meets 4 of WSAVA's 5 manufacturer questions
Same manufacturing-control standards as Eukanuba and Royal Canin
Wide retail availability (grocery and pet stores)

Watch-outs

Limited prescription-diet line; pair with another brand if therapeutic diet is needed
Flagship label says "formulated to meet" AAFCO profiles rather than citing feeding trials
Ingredient list is more mass-market-tier than Pro Plan

Best for: Healthy adult dogs on a tight budget whose owners still want a maker that meets 4 of WSAVA's 5 questions.

Avoid if: You have a dog with allergies or want a premium-tier ingredient profile.

Visit Iams ↗

Mars Incorporated (Champion Petfoods)

Orijen

High-protein, high-meat-inclusion boutique kibble; named in 12 reports in the FDA's 2019 DCM update.

Strengths

Some of the highest meat-inclusion percentages on the market
Strong brand-quality narrative and consumer trust
Owns manufacturing in Canada and Kentucky

Watch-outs

Named in 12 reports in the FDA's 2019 DCM update. The FDA did not establish that any food caused the disease
Formulation-only AAFCO substantiation
Premium price

Best for: Owners who prioritize ingredient panel aesthetics and accept the DCM-risk and WSAVA-compliance trade-offs.

Avoid if: Your dog has any cardiac risk factor or breed predisposition to DCM.

Visit Orijen ↗

Which is better for your dog?

The right pick depends on your individual dog. Iams is the better choice when: Healthy adult dogs on a tight budget whose owners still want a maker that meets 4 of WSAVA's 5 questions. Orijen is the better choice when: Owners who prioritize ingredient panel aesthetics and accept the DCM-risk and WSAVA-compliance trade-offs.

On cost, Iams is roughly 67% less than Orijen at the midpoint of typical premium spec for a 50 lb adult dog. On WSAVA manufacturer-quality criteria, Iams meets 4 of 5 vs 2 of 5 for Orijen.

Checking one brand rather than the pair? See is Iams WSAVA-approved or is Orijen WSAVA-approved.

Where to buy

Made your pick?

Check current pricing on whichever brand fits your dog. Prices and promotions change frequently, so it is worth comparing both before you commit to a bag or a subscription.

Shop Iams on Chewy →Shop Orijen on Chewy →

Disclosure: these are affiliate links and IntelliBowl may earn a commission at no extra cost to you. Commission does not influence the comparison above. See our methodology.

Personalized recommendation

Skip the brand decision and get a food matched to your specific dog.

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Compare these brands against others

Methodology: WSAVA criteria reflect each brand's publicly documented manufacturer-quality practices as of October 2026, scored against the WSAVA Global Nutrition Committee's 5-question rubric. AAFCO substantiation reflects the dominant method used across the brand's main retail product line. Monthly cost reflects typical US 2026 retail for a 50 lb adult dog at premium spec, before autoship discounts. Recommendations are editorial and not influenced by affiliate relationships. See our recommendation methodology for IntelliBowl's quiz-engine ranking logic.