Caffeine acts on the central nervous system playing a role in alertness when tiredness occurs.
Many people consume caffeine everyday as part of their diet and it can cause mild physical dependence. If you’re used to drinking two cups of coffee a day and you give it up, you may experience some mild withdrawal symptoms, such as a headache or fatigue, for a couple of days*.
The maximum recommended caffeine intake per day is 400mg, from all sources.
The amount of caffeine in a cup of tea or coffee depends on how enthusiastic you are with the teaspoons, but you can use this table as a guide:
| Food | Amount* | Caffeine Content |
|---|---|---|
| Filter coffee | 100 ml | 50 - 100 mg |
| Instant coffee | 100 ml | 20 - 73 mg |
| Tea | 100 ml | 20 - 73 mg |
| Cola drink | 100 ml | Up to 20 mg |
| Energy drink | 250 ml | 80 mg |
| Chocolate | 100 g | 5 - 20 mg |
| Pro Plus Caffeine Tablet | 1 tablet | 50 mg |
| Pro Plus Ultra | 1 capsule | 100 mg |
| Pro Plus Fizz | 1 tablet | 100 mg |
*100ml is equivalent to about 1 small cup of fluid
