Research · The ChatGPT Pet Index
Which pet brands ChatGPT recommends
Pet owners ask ChatGPT what to feed their dog or cat, and it answers with four or five brands. I asked five common pet questions, three times each, to see who gets named and what gets a brand on the list.
By Monica Hacker, fractional CMO · Updated November 7, 2026 · 15 ChatGPT answers
The numbers
What 15 answers showed
dog and cat food answers put Purina Pro Plan first, with Hill’s and Royal Canin right behind.
fresh dog food answers named the same four subscription brands: JustFoodForDogs, The Farmer’s Dog, Ollie and Nom Nom.
joint supplement answers put Nutramax Dasuquin first.
Who got named
BrandAnswers naming it
- Purina Pro Plan6 of 15
- Hill’s Science Diet6 of 15
- Royal Canin6 of 15
- IAMS5 of 15
- Eukanuba3 of 15
- Nutramax3 of 15
- JustFoodForDogs3 of 15
- The Farmer’s Dog3 of 15
- Ollie3 of 15
- Nom Nom3 of 15
- PureBites3 of 15
- Zuke’s3 of 15
What stood out
Vet science wins the food bowl
Purina Pro Plan was the first pick in all six dog and cat food answers, with Hill’s and Royal Canin behind it every time. The answers pointed to WSAVA guidelines: a veterinary nutritionist on staff and feeding trials. Brands with a great story but no veterinary proof did not make these lists.
Fresh food is a four brand race
The same four subscription brands made all three fresh dog food answers. The top spot moved between JustFoodForDogs, first twice, and The Farmer’s Dog, first once. Feeding trials and veterinary research decided it, and Forbes Vetted was cited.
Treats are the open lane
The top treat pick changed between runs, PureBites twice and Zuke’s once, and single ingredient, low calorie treats won. Every answer repeated the 10% calorie rule. Of the five questions, this is where a newer brand has the best shot.
One brand can own a shelf
Nutramax was named in all three joint supplement answers, often with two products on the same list, Dasuquin and Cosequin. Vet recommendation was the reason given every time.
Is ChatGPT recommending your pet brand?
Book a call →The questions I asked
Five questions, three runs each
Best dog food brand
Best fresh dog food delivery service
Best healthy dog treats
Best cat food brand
Best joint supplement for dogs
What I'd fix first
Give ChatGPT a vet to point to.
The pet brands ChatGPT names can point to veterinary proof: a veterinary nutritionist on staff, feeding trials, or vets who recommend them. Put that proof on your product pages in plain text, with the standard it meets, so ChatGPT can find it.
Then build around the reorder. Fresh food, treats and supplements are bought again and again, and the brands that keep customers are the ones that set delivery around how the product actually gets used. Read the playbook: how to get ChatGPT to recommend your brand.
Is ChatGPT recommending your pet brand,
or the one next to it on the shelf?
Let's find out.
My AI Visibility Check tests the questions your customers ask, shows who gets recommended instead of you, and gives you a prioritized fix list. $2,500, done in 5 days.
Book a call →Or see how I work with pet brands.
Monica Hacker, fractional CMO for CPG, ecommerce, beauty and wellness, and healthcare brands. I run these tests myself and rerun them to track who moves.
Questions people ask me
Which dog food brand does ChatGPT recommend?
Purina Pro Plan was the first pick in all three dog food answers in my November 2026 tests, followed by Hill’s Science Diet and Royal Canin.
Which fresh dog food delivery service does ChatGPT recommend?
JustFoodForDogs, The Farmer’s Dog, Ollie and Nom Nom were named in all three answers. JustFoodForDogs was first twice and The Farmer’s Dog once.
Can a new pet brand get recommended by ChatGPT?
Treats were the most open question: the top pick changed between runs, and single ingredient, low calorie brands like PureBites and Stewart made the lists. Food was the hardest, with the same three vet backed brands leading every time.
How was the ChatGPT Pet Index tested?
Five pet owner style questions, each asked three times in fresh ChatGPT temporary chats with no memory or history. I count how often each brand is named.
Want to know where your pet brand stands in ChatGPT?
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