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Hill's Prescription Diet vs Ultimates

Hill's Prescription Diet is made by Hill's Pet Nutrition (owned by Colgate-Palmolive Company), and Ultimates by Sunshine Mills, Inc. On KibbleLab, Hill's Prescription Diet averages 8.8 out of 10 across its scored foods, compared with 7.9 for Ultimates. Hill's Prescription Diet meets WSAVA's published criteria for evaluating a manufacturer, while Ultimates does not.

Hill's Prescription Diet and Ultimates compared

Hill's Prescription Diet Ultimates
Manufacturer Hill's Pet Nutrition Sunshine Mills, Inc.
Parent company Colgate-Palmolive Company Independent
Founded 1907 1947
Headquarters Topeka, Kansas, USA Red Bay, Alabama, USA
Products listed 43 14
Serves 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.
Yes 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 .
8.8 (avg of 43) 7.9 (avg of 14)
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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Hill's Prescription Diet vs Ultimates: how they compare

Scores

Hill's Prescription Diet scores higher on KibbleLab, averaging 8.8 out of 10 across 43 scored foods, compared with 7.9 across 14 for Ultimates. 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

Hill's Prescription Diet is made by Hill's Pet Nutrition, owned by Colgate-Palmolive Company, based in Topeka, Kansas, USA, founded in 1907. Ultimates is made by Sunshine Mills, Inc., an independent maker, based in Red Bay, Alabama, USA, founded in 1947.

Standards and range

Hill's Prescription Diet meets WSAVA's published manufacturer criteria, while Ultimates does not. Hill's Prescription Diet is accredited by the Pet Sustainability Coalition; Ultimates is not. KibbleLab lists 43 Hill's Prescription Diet foods and 14 Ultimates foods.

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Common Questions

Which scores higher on KibbleLab, Hill's Prescription Diet or Ultimates?

Hill's Prescription Diet scores higher: it averages 8.8 out of 10 across 43 scored foods, compared with 7.9 for Ultimates. Scores reflect published veterinary science, and no one can pay for a higher score.

Who makes Hill's Prescription Diet and Ultimates?

Hill's Prescription Diet is made by Hill's Pet Nutrition, which is owned by Colgate-Palmolive Company. Ultimates is made by Sunshine Mills, Inc.

Which brand has more products on KibbleLab?

Hill's Prescription Diet has 43 products in the KibbleLab database, compared with 14 for Ultimates.

Where is each brand based?

Hill's Prescription Diet is based in Topeka, Kansas, USA. Ultimates is based in Red Bay, Alabama, USA.

Do Hill's Prescription Diet and Ultimates meet WSAVA criteria?

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

Are Hill's Prescription Diet or Ultimates PSC Accredited?

Hill's Prescription 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 Hill's Prescription Diet or Ultimates been recalled?

Neither Hill's Prescription Diet nor Ultimates 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: Hill's Prescription Diet and Ultimates .

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.