Which vitamin & supplement brands do AI assistants recommend in Spain? Q4 2026
In Spain, AI assistants most often recommend Arkopharma, Solgar and Aquilea for vitamins. Arkopharma is named by 4 of 5 assistants.
What the data says
Arkopharma is the vitamin & supplement brand AI assistants recommend most in Spain, taking 18.8% of all recommendation points across 5 assistants. Solgar follows with 15.8% and Aquilea is third with 10.3%.
Arkopharma's lead over Solgar is 3 points, a clear advantage in how AI shortlists the category.
Grok puts Arkopharma first, while ChatGPT favours Solgar, Claude favours Swisse, DeepSeek favours Aquilea and Gemini favours Aquilea.
The top five brands hold 56% of recommendations out of 78 brands named in total, leaving room for challengers to break into AI shortlists.
| # | Brand | Owner | AI share | ChatGPT | Claude | DeepSeek | Gemini | Grok |
|---|---|---|---|---|---|---|---|---|
| 1 | Arkopharma | Arkopharma | 18.8% | 172 | – | 257 | 20 | 680 |
| 2 | Solgar | Nestlé | 15.8% | 199 | 185 | 52 | 45 | 464 |
| 3 | Aquilea | Uriach | 10.3% | 197 | – | 315 | 109 | – |
| 4 | Swisse | H&H Group | 6.1% | 44 | 320 | – | – | – |
| 5 | Centrum | Haleon | 4.6% | 63 | 12 | 12 | – | 190 |
| 6 | Ysonut | Ysonut | 4.3% | – | – | – | – | 256 |
| 7 | Nature's Bounty | Nestlé | 4.2% | – | 235 | – | – | 16 |
| 8 | Naturtierra | Naturtierra | 3.1% | – | – | 188 | – | – |
| 9 | Ensure | Abbott | 2.8% | 35 | 35 | 35 | 25 | 40 |
| 10 | Supradyn | Bayer | 1.7% | 45 | – | – | 35 | 24 |
| 11 | XLS Medical | Perrigo | 1.4% | 35 | – | – | – | 50 |
| 12 | Herbalife | Herbalife | 1.2% | 50 | 25 | – | – | – |
| 13 | Aboca | Aboca | 1.1% | 44 | – | – | – | 24 |
| 14 | Natysal | Natysal | 1.1% | – | – | 68 | – | – |
| 15 | Priorin | Bayer | 0.9% | 35 | – | – | 20 | – |
| 16 | Anakku | Anakku Indonesia | 0.9% | – | – | – | 55 | – |
| 17 | Berocca | Bayer | 0.9% | – | – | – | 37 | 16 |
| 18 | Nutricia | Danone | 0.9% | – | 52 | – | – | – |
| 19 | Lipograsil | Zambon | 0.8% | – | – | – | 47 | – |
| 20 | Arkocapsulas | Arkopharma | 0.7% | – | – | – | 43 | – |
Questions about AI vitamin & supplement recommendations
- Which vitamin & supplement brand does ChatGPT recommend most in Spain?
- ChatGPT recommends Solgar most often for vitamin & supplement in Spain. Across all assistants, Arkopharma leads with 18.8% of recommendations.
- Which vitamin & supplement brand is improving fastest in Spain?
- Swisse has the strongest momentum among challengers: AI names it first in 8 of 15 answers where it appears, while holding 6.1% share. This is the first Q4 2026 reading; change over time will be shown from the next update.
- How is the ranking calculated?
- We ask each AI assistant the questions shoppers ask in each category and market, record the top five brands it names, and give 35, 25, 20, 12 and 8 points for positions one to five. Share is a brand's points divided by all points awarded.
Vitamins: AI rankings by country
Covers: Bone & Joint Supplements, Brain & Eye Supplements, Detox Supplements, Fat Burning Supplements, Hair Supplements, Heart Supplements, Mineral Supplements, Multivitamins, Nutritional Supplements, Skin Supplements.
Method: each AI assistant is asked the shopper questions for every segment in the category and market; the top five brands named score 35, 25, 20, 12 and 8 points. Share is a brand's points divided by all points awarded. Rankings reflect AI answers, not sales.
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