UK · Energy drinks
How much caffeine is in Lucozade Alert?
Lucozade Alert contains 32 mg per 100 ml, giving 160 mg in a 500 ml can.
Interactive serving
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Source and provenance
- Source
- Lucozade Alert support
- Source type
- Manufacturer
- Market
- UK
- Value basis
- Calculated from manufacturer table
- Source reviewed
- 21 August 2026
The serving total is calculated as 32 mg per 100 ml × 5.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 160 mg starting value. They are calculations, not measurements of caffeine in a particular person.
| Hours elapsed | 3-hour half-life | 5-hour half-life | 7-hour half-life |
|---|---|---|---|
| 0 | 160 mg | 160 mg | 160 mg |
| 3 | 80 mg | 105.6 mg | 118.9 mg |
| 5 | 50.4 mg | 80 mg | 97.5 mg |
| 8 | 25.2 mg | 52.8 mg | 72.5 mg |
| 10 | 15.9 mg | 40 mg | 59.4 mg |
| 12 | 10 mg | 30.3 mg | 48.8 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 13.4 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.
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