Caffeine: timing beats habit.
Caffeine can affect alertness and some aspects of sports performance. The right timing also depends on sleep, tolerance and total daily intake.
Count the total
Add coffee, energy drinks and pre-workout products together.
Protect sleep
Late intake can affect the night more than expected.
Test in training
Never experiment for the first time on competition day.
Caffeine comes from several sources.
Coffee, tea, cola, energy drinks, gels and pre-workout products can all contribute to the daily total. Looking at only one serving can easily underestimate intake.
EFSA considers single doses up to 200 mg and up to 400 mg across the day generally not to raise safety concerns for healthy adults. This is not a personal dosing recommendation and does not automatically apply during pregnancy, illness or medication use.
- Add every source consumed that day
- Check serving size and caffeine amount
- Seek medical guidance when unsure
Performance starts the night before.
Even 100 mg can affect sleep in some adults, particularly when taken close to bedtime. A short-term alertness boost may therefore work against recovery the following day.
Plan caffeine backwards from your usual bedtime, not only around training. Sensitivity and habituation vary considerably.
- Set a clear cut-off before bedtime
- Observe both effect and sleep for several weeks
- Do not use caffeine to compensate for chronic sleep loss
A simple test beats a complicated protocol.
Try one clearly declared amount during an ordinary training session. Note the effect, nervousness, stomach comfort and sleep quality.
More is not automatically better. The lowest effective and well-tolerated amount is usually the more sensible starting point.
- Begin with a small known amount
- Do not test several new products at once
- Stop and reassess if palpitations, discomfort or sleep problems occur
Myth and reality.
“A stronger kick automatically means a better workout.”
Too much caffeine can promote nervousness, stomach discomfort or poor sleep. The individual overall balance matters.
Continue with reliable information.
The article is based on official Swiss authorities and established professional sources. Sources may be updated; the current product label and your personal situation remain decisive.