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Protein Boost vs Zignature

Protein Boost is made by K9 Natural Foods Limited (owned by KKR (Natural Pet Food Group)), and Zignature by Pets Global, Inc., and both make food for dogs. On KibbleLab, Protein Boost averages 8.6 out of 10 across its scored foods, compared with 8.1 for Zignature. Protein Boost is accredited by the Pet Sustainability Coalition; Zignature is not.

Protein Boost and Zignature compared

Protein Boost Zignature
Manufacturer K9 Natural Foods Limited Pets Global, Inc.
Parent company KKR (Natural Pet Food Group) Independent
Founded 2006 2010
Headquarters Christchurch, New Zealand Valencia, California, USA
Products listed 13 53
Serves 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.
Yes No
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 .
8.6 (avg of 13) 8.1 (avg of 53)
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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Protein Boost vs Zignature: how they compare

Scores

Protein Boost scores higher on KibbleLab, averaging 8.6 out of 10 across 13 scored foods, compared with 8.1 across 53 for Zignature. 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

Protein Boost is made by K9 Natural Foods Limited, owned by KKR (Natural Pet Food Group), based in Christchurch, New Zealand, founded in 2006. Zignature is made by Pets Global, Inc., an independent maker, based in Valencia, California, USA, founded in 2010.

Standards and range

Neither meets WSAVA's published manufacturer criteria. Protein Boost is accredited by the Pet Sustainability Coalition; Zignature is not. KibbleLab lists 13 Protein Boost foods and 53 Zignature foods.

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Common Questions

Which scores higher on KibbleLab, Protein Boost or Zignature?

Protein Boost scores higher: it averages 8.6 out of 10 across 13 scored foods, compared with 8.1 for Zignature. Scores reflect published veterinary science, and no one can pay for a higher score.

Who makes Protein Boost and Zignature?

Protein Boost is made by K9 Natural Foods Limited, which is owned by KKR (Natural Pet Food Group). Zignature is made by Pets Global, Inc.

Which brand has more products on KibbleLab?

Zignature has 53 products in the KibbleLab database, compared with 13 for Protein Boost.

Where is each brand based?

Protein Boost is based in Christchurch, New Zealand. Zignature is based in Valencia, California, USA.

Are Protein Boost or Zignature 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 Protein Boost or Zignature been recalled?

Neither Protein Boost nor Zignature 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: Protein Boost and Zignature .

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.