Which diet & sports nutrition brands do AI assistants recommend in Australia? Q4 2026
In Australia, AI assistants most often recommend Optimum Nutrition, Gatorade and Isowhey 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 Australia, taking 9.3% of all recommendation points across 5 assistants. Gatorade follows with 9% and Isowhey is third with 6.7%.
The top spot is close: only 0.3 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 Isowhey, DeepSeek favours Herbalife, Gemini favours Musashi and Grok favours Blackmores.
The top five brands hold 37% of recommendations out of 44 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 | 9.3% | 35 | 25 | 35 | 32 | 60 |
| 2 | Gatorade | PepsiCo | 9% | 35 | 60 | 25 | 25 | 35 |
| 3 | Isowhey | Isowhey | 6.7% | – | 125 | – | 8 | – |
| 4 | Herbalife | Herbalife | 6.5% | 25 | 25 | 71 | – | 8 |
| 5 | Hydralyte | Prestige Consumer Healthcare | 5.8% | 20 | – | 35 | 35 | 25 |
| 6 | Musashi | Vitaco | 5.5% | 25 | – | – | 47 | 37 |
| 7 | Swisse | H&H Group | 5% | 8 | 20 | 25 | – | 48 |
| 8 | Blackmores | Blackmores | 4.8% | – | – | 20 | – | 77 |
| 9 | Optifast | Nestlé | 4.5% | 35 | – | – | 20 | 35 |
| 10 | Ensure | Abbott | 3.9% | – | 8 | 35 | – | 35 |
| 11 | Powerade | Coca-Cola | 3.5% | 25 | 25 | – | 20 | – |
| 12 | BSN | Glanbia | 3% | 12 | 8 | 20 | – | 20 |
| 13 | Sustagen | Mead Johnson | 2.9% | – | 32 | 25 | – | – |
| 14 | Red Bull | Red Bull GmbH | 2.8% | 35 | – | 20 | – | – |
| 15 | Muscle Nation | Muscle Nation | 2.2% | – | – | – | 45 | – |
| 16 | Pocari Sweat | Otsuka Pharmaceutical | 2.2% | 12 | 12 | 20 | – | – |
| 17 | MuscleTech | Iovate Health Sciences | 1.9% | – | 12 | 25 | – | – |
| 18 | EHP Labs | EHPlabs | 1.8% | – | – | – | 35 | – |
| 19 | The Lady Shake | The Lady Shake | 1.8% | – | – | – | 35 | – |
| 20 | V | Frucor Suntory | 1.4% | 20 | – | 8 | – | – |
Questions about AI diet & sports nutrition recommendations
- Which diet & sports nutrition brand does ChatGPT recommend most in Australia?
- ChatGPT recommends Optimum Nutrition most often for diet & sports nutrition in Australia. Across all assistants, Optimum Nutrition leads with 9.3% of recommendations.
- Which diet & sports nutrition brand is improving fastest in Australia?
- Optifast has the strongest momentum among challengers: AI names it first in 2 of 3 answers where it appears, while holding 4.5% 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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