UK packaged drinks · Updated 23 August 2026
UK energy drinks ranked by caffeine
Compare source-backed UK energy-drink servings by total caffeine and can size.
How this table is builtOnly UK-market records with a first-party source are included. The ranking compares the named can or bottle, so a larger package can rank above a more concentrated smaller drink.
Showing 3 qualifying source-backed servings. Select a drink to inspect its source and calculation details.
| Rank | Drink | Serving | Caffeine | Basis |
|---|---|---|---|---|
| 1 | Lucozade Alert Lucozade | 500 ml can | 160 mg | Calculated from manufacturer table |
| 2 | Monster Energy Original Green Monster Energy | 500 ml can | 160 mg | Manufacturer listed |
| 3 | Red Bull Energy Drink Red Bull | 250 ml can | 80 mg | Manufacturer listed |
The table is informational and does not define a “safe”, recommended or healthy dose. Product recipes can change; follow the linked source on each drink page and check the product in hand.