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Greenies vs Protein Boost

Greenies is made by Mars Petcare (owned by Mars, Incorporated), and Protein Boost by K9 Natural Foods Limited (owned by KKR (Natural Pet Food Group)). On KibbleLab, Protein Boost averages 8.6 out of 10 across its scored foods, compared with 7.7 for Greenies. Protein Boost is accredited by the Pet Sustainability Coalition; Greenies is not.

Greenies and Protein Boost compared

Greenies Protein Boost
Manufacturer Mars Petcare K9 Natural Foods Limited
Parent company Mars, Incorporated KKR (Natural Pet Food Group)
Founded 1935 2006
Headquarters Brussels, Belgium (global Petcare division); McLean, Virginia, USA (Mars, Incorporated global HQ) Christchurch, New Zealand
Products listed 102 13
Serves Cats & dogs Dogs
Price tier A relative price guide, from $ (most affordable) to $$$$$ (most premium), based on the brand's typical retail cost.
$$$$ $$$$
WSAVA guidelines The World Small Animal Veterinary Association (WSAVA) publishes criteria for evaluating a manufacturer: qualified nutritionists on staff, feeding trials, and published research. It does not certify or endorse brands.
No No
PSC accredited The Pet Sustainability Coalition is a nonprofit that accredits pet companies on their environmental and social impact, through third-party verification. It reflects sustainability practices, not food quality.
No Yes
Score The average KibbleLab score across this brand's scored foods, on a 0 to 10 scale. Foods are scored on published veterinary science, and no one can pay for a higher score. How scoring works .
7.7 (avg of 102) 8.6 (avg of 13)
Recalls on record KibbleLab began logging recalls in July 2026, so earlier recalls may not appear.
None None
Where to buy Amazon Amazon

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Greenies vs Protein Boost: how they compare

Scores

Protein Boost scores higher on KibbleLab, averaging 8.6 out of 10 across 13 scored foods, compared with 7.7 across 102 for Greenies. Scores apply the same criteria-based rubric to every food, drawn from published veterinary science, and no one can pay for a higher score.

Who makes them

Greenies is made by Mars Petcare, owned by Mars, Incorporated, based in Brussels, Belgium (global Petcare division); McLean, Virginia, USA (Mars, Incorporated global HQ), founded in 1935. Protein Boost is made by K9 Natural Foods Limited, owned by KKR (Natural Pet Food Group), based in Christchurch, New Zealand, founded in 2006.

Standards and range

Neither meets WSAVA's published manufacturer criteria. Protein Boost is accredited by the Pet Sustainability Coalition; Greenies is not. KibbleLab lists 102 Greenies foods and 13 Protein Boost foods.

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Common Questions

Which scores higher on KibbleLab, Greenies or Protein Boost?

Protein Boost scores higher: it averages 8.6 out of 10 across 13 scored foods, compared with 7.7 for Greenies. Scores reflect published veterinary science, and no one can pay for a higher score.

Who makes Greenies and Protein Boost?

Greenies is made by Mars Petcare, which is owned by Mars, Incorporated. Protein Boost is made by K9 Natural Foods Limited, which is owned by KKR (Natural Pet Food Group).

Which brand has more products on KibbleLab?

Greenies has 102 products in the KibbleLab database, compared with 13 for Protein Boost.

Where is each brand based?

Greenies is based in Brussels, Belgium (global Petcare division); McLean, Virginia, USA (Mars, Incorporated global HQ). Protein Boost is based in Christchurch, New Zealand.

Are Greenies or Protein Boost PSC Accredited?

Protein Boost is a PSC Accredited business. The Pet Sustainability Coalition is a nonprofit that Accredits pet companies on their environmental and social impact, through third-party verification.

Have Greenies or Protein Boost been recalled?

Neither Greenies nor Protein Boost has a recall on record in the KibbleLab database. KibbleLab began logging recalls in July 2026, so earlier recalls may not appear.

See the full profiles: Greenies and Protein Boost .

More comparisons

KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.

This is a neutral, factual comparison, not a ranking or an endorsement of either brand. KibbleLab may earn affiliate commissions through links. No one can pay for placement or a higher score.

Brand and manufacturer details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing. Recall data is compiled from public FDA and manufacturer notices, and a notice may name the parent company rather than the brand. KibbleLab began logging recalls in July 2026, so earlier recalls may not appear.

KibbleLab scores and commentary are editorial opinions based on published data. Represent one of these brands? Request a correction. Anyone else can email us. See our Terms.