Which diet & sports nutrition brands do AI assistants recommend in United Kingdom? Q4 2026
In United Kingdom, AI assistants most often recommend MyProtein, Slim Fast and Grenade for diet & sports nutrition. MyProtein is named by 5 of 5 assistants.
What the data says
MyProtein (THG) is the diet & sports nutrition brand AI assistants recommend most in United Kingdom, taking 14.7% of all recommendation points across 5 assistants. Slim Fast follows with 8.2% and Grenade is third with 8%.
MyProtein's lead over Slim Fast is 6.5 points, a clear advantage in how AI shortlists the category.
ChatGPT, DeepSeek and Grok put MyProtein first, while Claude favours Boots and Gemini favours Science Diet.
The top five brands hold 44% of recommendations out of 40 brands named in total, leaving room for challengers to break into AI shortlists.
| # | Brand | Owner | AI share | ChatGPT | Claude | DeepSeek | Gemini | Grok |
|---|---|---|---|---|---|---|---|---|
| 1 | MyProtein | THG | 14.7% | 67 | 25 | 100 | 35 | 67 |
| 2 | Slim Fast | Glanbia | 8.2% | 35 | 35 | 35 | 25 | 35 |
| 3 | Grenade | Grenade | 8% | 36 | – | 55 | 32 | 36 |
| 4 | Optimum Nutrition | Glanbia | 6.8% | 25 | 35 | 25 | 25 | 25 |
| 5 | Lucozade | Suntory | 6.5% | 35 | 25 | – | 35 | 35 |
| 6 | Huel | Huel | 6% | 50 | – | – | 20 | 50 |
| 7 | Lucozade Sport | Suntory | 4.1% | 35 | – | 12 | – | 35 |
| 8 | High5 | High5 | 4% | 12 | – | 35 | 20 | 12 |
| 9 | Florasis | Yatsen Group | 3.8% | 25 | – | 25 | – | 25 |
| 10 | Boots | Boots | 3.6% | – | 60 | 12 | – | – |
| 11 | Applied Nutrition | Applied Nutrition | 2.4% | 20 | – | 8 | – | 20 |
| 12 | Science Diet | Colgate-Palmolive | 2.2% | – | – | – | 45 | – |
| 13 | Liquid I.V. | Unilever | 2% | 20 | – | – | – | 20 |
| 14 | Herbalife | Herbalife | 1.8% | 12 | 12 | – | – | 12 |
| 15 | O.R.S | Clinova | 1.8% | – | – | – | 35 | – |
| 16 | XLS-Medical | Perrigo | 1.8% | – | – | – | 35 | – |
| 17 | Gatorade | PepsiCo | 1.8% | – | 35 | – | – | – |
| 18 | Exante | The Hut Group | 1.6% | – | – | 25 | 8 | – |
| 19 | Clif | Mondelez | 1.6% | – | 25 | 8 | – | – |
| 20 | KIND | Mars | 1.6% | – | 20 | 12 | – | – |
Questions about AI diet & sports nutrition recommendations
- Which diet & sports nutrition brand does ChatGPT recommend most in United Kingdom?
- ChatGPT recommends MyProtein most often for diet & sports nutrition in United Kingdom. Across all assistants, MyProtein leads with 14.7% of recommendations.
- Which diet & sports nutrition brand is improving fastest in United Kingdom?
- Slim Fast has the strongest momentum among challengers: AI names it first in 4 of 5 answers where it appears, while holding 8.2% 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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