Flintstones vs Hiya:Which is more popular?
In September 2026, Flintstones had more branded searches than Hiya among kids' vitamin brands in the United States. Flintstones had about 49,500 branded searches, while Hiya had 40,500. Flintstones made up 24.4% of all kids' vitamin brand searches we track, and Hiya accounted for 20%. When we asked ChatGPT and Google AI Overviews about kids' vitamin brands, Hiya appeared in four of the five answers and Flintstones in one. Hiya was mentioned before Flintstones in every answer that named either.
Who do people search for more?
Flintstones, about 22% more searches than Hiya
Who does AI mention more?
Hiya, mentioned in 4 of 5 answers, Flintstones in 1
Who does AI recommend more?
Hiya, named ahead of Flintstones in 3 of 3 answers
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Top kids' vitamin brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Hiya was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Flintstones was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Hiya was listed before Flintstones in every answer that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
SmartyPants1st
Hiya2nd
Renzo's3rd
L'il Critters4th
Flintstones5th
MaryRuth's6th
Zarbee's–
Llama Naturals–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Hiya4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Renzo's4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
SmartyPants4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
MaryRuth's1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Flintstones1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
L'il Critters1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Zarbee's0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Llama Naturals0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about kids' vitamin brands
5 answers
Asked ChatGPT
“Which kids' vitamin brand should I buy in the US?”
Asked ChatGPT
“What are the best kids' vitamin brands in the US?”
Asked ChatGPT
“What's the best kids' multivitamin in the US for picky eaters?”
Searched Google, AI Overview
“childrens multivitamin”
- 1
Hiya
- 1
Searched Google, AI Overview
“best kids vitamins”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in United States on October 22, 2026.
Is Flintstones or Hiya more popular in search?
This chart shows how often people search Google for Flintstones and Hiya by name. Each line represents a brand's share of searches for all eight kids' vitamin brands we track, month by month, from searches in United States.
Share of searches by month for Flintstones, Hiya. The figures are in the table below the chart.
View monthly share of searches table
| Month | MaryRuth's | Flintstones | Hiya | Zarbee's | L'il Critters | Llama Naturals | Renzo's | SmartyPants |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 36.5% | 20% | 16.3% | 13.3% | 10.9% | 1.2% | 1.2% | 0.64% |
| Nov 2025 | 40% | 17.9% | 14.6% | 14.6% | 9.8% | 1.3% | 1.1% | 0.58% |
| Dec 2025 | 41.5% | 15.2% | 15.2% | 15.2% | 10.2% | 1.1% | 1.1% | 0.6% |
| Jan 2026 | 41.4% | 18.6% | 15.2% | 12.5% | 8.4% | 1.7% | 1.4% | 0.9% |
| Feb 2026 | 46.6% | 17.2% | 14% | 11.5% | 7.7% | 1.2% | 1.2% | 0.55% |
| Mar 2026 | 42% | 18.8% | 15.4% | 10.3% | 10.3% | 1.3% | 1.3% | 0.6% |
| Apr 2026 | 37.4% | 20.4% | 16.7% | 11.2% | 11.2% | 1.2% | 1.2% | 0.66% |
| May 2026 | 39.4% | 21.5% | 14.4% | 9.6% | 11.8% | 1.3% | 1.3% | 0.69% |
| Jun 2026 | 38% | 20.8% | 17% | 9.3% | 11.4% | 1.5% | 1.2% | 0.82% |
| Jul 2026 | 34.7% | 23.2% | 19% | 6.9% | 12.7% | 1.4% | 1.1% | 0.92% |
| Aug 2026 | 30.5% | 25% | 20.4% | 9.1% | 11.2% | 1.5% | 1.5% | 0.81% |
| Sep 2026 | 29.8% | 24.4% | 20% | 13.4% | 8.9% | 1.4% | 1.4% | 0.64% |
How has the Flintstones and Hiya comparison changed over the last 12 months?
3 findings
- Flintstones was ahead of Hiya in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Flintstones’ share of searches among kids' vitamin brands in the United States moved from 20% to 24.4%, and its estimated monthly branded searches moved from 40.5K to 49.5K.
- Across the 12 months ending September 2026, Hiya’s share of searches among kids' vitamin brands in the United States moved from 16.3% to 20%, and its estimated monthly branded searches moved from 33.1K to 40.5K.
How did search popularity change for United States kids' vitamin brands in September 2026?
2 changes

In September 2026, Flintstones lost share of searches among kids' vitamin brands in the United States, from 25% to 24.4%.

Estimated monthly branded searches for Hiya in the United States rose 22.4% over 12 measured months, from 33.1K to 40.5K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Flintstones’ and Hiya’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Flintstones
1 branded search term
- flintstones vitamins
Hiya
1 branded search term
- hiya vitamins
Other head-to-heads among kids' vitamin brands

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