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Caffeine

Source : Nutriactis/Rouen-Normandie hospital

Caffeine is the most widely consumed stimulant in the world. It is mainly found in coffee and tea, but it also hides in other food products such as energy drinks, sodas, chocolate, coffee-flavored items, and even chewing gum. As it is present in many everyday foods, it’s only natural that caffeine piques our curiosity and raises questions about its effects. In this newsletter, we invite you to further explore the world of caffeine and discover some fun facts about it on the last page.

These values are provided for reference only and may vary.

What happens after caffeine ingestion?

The above-mentioned durations are averages and can actually vary:

  • Caffeine is absorbed more slowly if consumed during a meal.
  • The duration of caffeine’s effects also varies depending on the individual and their clinical condition (e.g., illnesses, pregnancy, etc.).
  • The rate of caffeine elimination can depend on many factors: smoking, age, dietary habits, or the simultaneous use of certain medications.

Common misconceptions

“Caffeine dehydrates” – FALSE

Although caffeine has diuretic effects (substance that increases urine production), moderate consumption of coffee or tea does not lead to significant dehydration and actually contributes to overall hydration.

“Caffeine causes addiction” – PARTIALLY FALSE

Caffeine can lead to use-related disorders, but it is not officially recognized as an addictive substance by the WHO or the American Psychiatric Association. However, caffeine withdrawal is well documented, with clearly described symptoms such as headaches.

Consumption Recommendations

Effects of caffeine consumption

Caffeine has different effects depending on the amount consumed :

*Attention: ability to focus on a specific task
Alertness: ability to stay awake and perform a task over a long period

Conclusion

When consumed in moderation, caffeine can offer certain short-term benefits. However, in excess, it can quickly cause side effects and negatively impact health and quality of life. To enjoy its benefits, remember: moderation is key!