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Diamond Naturals vs Hill's Science Diet

Diamond Naturals is made by Diamond Pet Foods (owned by Schell & Kampeter, Inc.), and Hill's Science Diet by Hill's Pet Nutrition (owned by Colgate-Palmolive Company), and both make food for cats and dogs. On KibbleLab, Hill's Science Diet averages 8.6 out of 10 across its scored foods, compared with 8.2 for Diamond Naturals. Hill's Science Diet meets WSAVA's published criteria for evaluating a manufacturer, while Diamond Naturals does not.

Diamond Naturals and Hill's Science Diet compared

Diamond Naturals Hill's Science Diet
Manufacturer Diamond Pet Foods Hill's Pet Nutrition
Parent company Schell & Kampeter, Inc. Colgate-Palmolive Company
Founded 1970 1907
Headquarters Meta, Missouri, USA Topeka, Kansas, USA
Products listed 25 73
Serves Cats & dogs Cats & 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 Yes
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 .
8.2 (avg of 25) 8.6 (avg of 73)
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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Diamond Naturals vs Hill's Science Diet: how they compare

Scores

Hill's Science Diet scores higher on KibbleLab, averaging 8.6 out of 10 across 73 scored foods, compared with 8.2 across 25 for Diamond Naturals. 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

Diamond Naturals is made by Diamond Pet Foods, owned by Schell & Kampeter, Inc., based in Meta, Missouri, USA, founded in 1970. Hill's Science Diet is made by Hill's Pet Nutrition, owned by Colgate-Palmolive Company, based in Topeka, Kansas, USA, founded in 1907.

Standards and range

Hill's Science Diet meets WSAVA's published manufacturer criteria, while Diamond Naturals does not. Hill's Science Diet is accredited by the Pet Sustainability Coalition; Diamond Naturals is not. KibbleLab lists 25 Diamond Naturals foods and 73 Hill's Science Diet foods.

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Common Questions

Which scores higher on KibbleLab, Diamond Naturals or Hill's Science Diet?

Hill's Science Diet scores higher: it averages 8.6 out of 10 across 73 scored foods, compared with 8.2 for Diamond Naturals. Scores reflect published veterinary science, and no one can pay for a higher score.

Who makes Diamond Naturals and Hill's Science Diet?

Diamond Naturals is made by Diamond Pet Foods, which is owned by Schell & Kampeter, Inc. Hill's Science Diet is made by Hill's Pet Nutrition, which is owned by Colgate-Palmolive Company.

Which brand has more products on KibbleLab?

Hill's Science Diet has 73 products in the KibbleLab database, compared with 25 for Diamond Naturals.

Where is each brand based?

Diamond Naturals is based in Meta, Missouri, USA. Hill's Science Diet is based in Topeka, Kansas, USA.

Do Diamond Naturals and Hill's Science Diet meet WSAVA criteria?

Hill's Science Diet meets WSAVA's published criteria for evaluating a manufacturer; Diamond Naturals does not, based on public information. WSAVA publishes criteria; it does not certify or endorse brands.

Are Diamond Naturals or Hill's Science Diet PSC Accredited?

Hill's Science Diet 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 Diamond Naturals or Hill's Science Diet been recalled?

Neither Diamond Naturals nor Hill's Science Diet 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: Diamond Naturals and Hill's Science Diet .

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.