Which diet & sports nutrition brands do AI assistants recommend in South Korea? Q4 2026
In South Korea, AI assistants most often recommend Optimum Nutrition, Gatorade and Pocari Sweat for diet & sports nutrition. Optimum Nutrition is named by 5 of 5 assistants.
What the data says
Optimum Nutrition (Glanbia) is the diet & sports nutrition brand AI assistants recommend most in South Korea, taking 9.5% of all recommendation points across 5 assistants. Gatorade follows with 8.1% and Pocari Sweat is third with 7.5%.
The top spot is close: only 1.4 points separate Optimum Nutrition and Gatorade, so a small change in how either brand is described online could flip the order.
ChatGPT puts Optimum Nutrition first, while Claude favours Gatorade, DeepSeek favours Herbalife, Gemini favours Calobye and Grok favours Blackmores.
The top five brands hold 35% of recommendations out of 54 brands named in total, leaving room for challengers to break into AI shortlists.
| # | Brand | Owner | AI share | ChatGPT | Claude | DeepSeek | Gemini | Grok |
|---|---|---|---|---|---|---|---|---|
| 1 | Optimum Nutrition | Glanbia | 9.5% | 35 | 35 | 25 | 25 | 70 |
| 2 | Gatorade | PepsiCo | 8.1% | 12 | 70 | 35 | 20 | 25 |
| 3 | Pocari Sweat | Otsuka Pharmaceutical | 7.5% | 35 | 20 | 25 | 35 | 35 |
| 4 | Herbalife | Herbalife | 5.2% | 12 | – | 83 | – | 8 |
| 5 | MyProtein | THG | 4.8% | 25 | – | – | 35 | 37 |
| 6 | Blackmores | Blackmores | 4.3% | – | – | – | – | 87 |
| 7 | BSN | Glanbia | 4% | 20 | 20 | 20 | – | 20 |
| 8 | Powerade | Coca-Cola | 3.8% | 25 | 25 | – | 25 | – |
| 9 | Bacchus | Dong-A | 3.5% | 35 | – | 35 | – | – |
| 10 | CJ | CJ Group | 3.5% | 35 | – | – | 35 | – |
| 11 | Calobye | Calobye | 3.5% | – | – | – | 70 | – |
| 12 | MuscleTech | Iovate Health Sciences | 3.1% | 8 | – | 43 | 12 | – |
| 13 | GNC | GNC | 2.8% | – | – | 20 | – | 36 |
| 14 | Ensure | Abbott | 2.5% | – | – | 25 | – | 25 |
| 15 | Swisse | H&H Group | 2.2% | 8 | – | – | – | 37 |
| 16 | Nutrex | Nutrex Research | 1.9% | – | – | 37 | – | – |
| 17 | Market O | Orion | 1.8% | – | – | – | 35 | – |
| 18 | Protein Shake | Generic | 1.8% | – | 35 | – | – | – |
| 19 | Red Bull | Red Bull GmbH | 1.6% | 25 | – | 8 | – | – |
| 20 | Amorepacific | Amorepacific | 1.2% | 25 | – | – | – | – |
Questions about AI diet & sports nutrition recommendations
- Which diet & sports nutrition brand does ChatGPT recommend most in South Korea?
- ChatGPT recommends Optimum Nutrition most often for diet & sports nutrition in South Korea. Across all assistants, Optimum Nutrition leads with 9.5% of recommendations.
- Which diet & sports nutrition brand is improving fastest in South Korea?
- Bacchus has the strongest momentum among challengers: AI names it first in 2 of 2 answers where it appears, while holding 3.5% 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.
Diet & Sports Nutrition: AI rankings by country
Covers: Energy Boosters, Hydration Supplements, Muscle Support Supplements, Weight Loss Aids.
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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