Does Chewing Gum Help You Focus? What the Research Says

Educational content only — not medical advice. This article separates research on ordinary chewing gum from research on caffeinated gum so the two effects are not confused.

The short answer: chewing gum itself has been associated with higher subjective alertness and, in some studies, better sustained-attention performance. The findings are not perfectly consistent, and the mechanism is still debated. When the gum also contains caffeine, there are potentially two separate influences: the act of chewing and the established stimulant effect of caffeine.

Chewing alone may affect alertness

Studies comparing ordinary chewing gum with no gum often report higher subjective alertness during chewing. Attention findings are more variable, but several experiments have found benefits in sustained-attention or vigilance tasks.

A 2015 review of studies examining chewing and attention found positive attention-related findings in more than half of the included reports, while also noting mixed and negative findings. That is a useful summary: the signal is interesting, but chewing gum is not a guaranteed cognitive enhancer.

What a sustained-attention study found

Johnson and colleagues had participants complete a sustained-attention task with and without chewing gum. Chewing was associated with better task performance and higher subjective alertness.

Another study by Allen and Smith found chewing reliably increased reported alertness, while effects on individual attention tasks changed with time-on-task.

Why might chewing affect attention?

Several explanations have been proposed, including increased arousal, changes in cerebral blood flow, motor activity and the simple sensory stimulation of chewing. None has been established as the single definitive mechanism.

That uncertainty is why it is better to say “chewing has been associated with alertness and some attention effects” rather than inventing a precise brain mechanism.

Caffeinated gum adds a separate caffeine effect

Caffeine has a much larger and more established evidence base for alertness and attention. A 2025 meta-analysis of randomized placebo-controlled trials found acute caffeine improved attention accuracy and reaction time in healthy adults.

So if a caffeinated gum helps you feel more alert, the effect cannot automatically be credited to chewing alone.

A useful 40mg caffeinated-gum study

In a double-blind placebo-controlled study with 118 young adults, Smith tested a caffeinated gum containing 40mg caffeine, placebo gum and no gum. Caffeinated gum was associated with better performance on sustained-attention tasks and more positive mood. Placebo gum also produced some mood effects, helping illustrate that chewing and caffeine can contribute differently.

Where AVYSERA fits

AVYSERA Energy & Drive contains 40mg natural caffeine per piece plus 60mg L-theanine and vitamins B6 and B12. It is therefore not simply “gum for focus”; it is a caffeine-delivery product in a chewing format.

The evidence supports discussing caffeine for attention and chewing as a potentially alerting behaviour. It does not support claiming that gum guarantees better concentration on every task.

Does mint flavour improve focus?

Flavour can affect preference and sensory experience, but it should not be treated as a proven focus ingredient. AVYSERA is peppermint because flavour matters to the chewing experience, not because peppermint is being presented as the main active cognitive ingredient.

Chewing gum vs caffeine for focus

Frequently asked questions

Does normal chewing gum help concentration?

Some studies find improved sustained attention and alertness, while others are mixed. It may help some tasks or people, but it is not a guaranteed focus tool.

Is caffeinated gum different from normal gum?

Yes. Caffeinated gum delivers a stimulant in addition to any effects associated with chewing itself.

Does 40mg caffeine improve attention?

A 2009 study using 40mg caffeinated gum reported improved sustained-attention performance. Individual response still varies.

Does chewing gum improve memory?

Evidence for memory is less consistent than evidence for subjective alertness and sustained attention.

Can gum replace good focus habits?

No. Sleep, distraction control, task design and breaks remain more important parts of a reliable focus system.

Bottom line

Chewing gum itself may have a modest alerting effect and can influence sustained attention in some studies. Caffeinated gum adds the much better-established effects of caffeine. The most accurate conclusion is promising but task-dependent for chewing, stronger evidence for caffeine.

For practical work focus, see How to Focus at Work.

References

1. Hirano Y, Onozuka M. Chewing and Attention: A Positive Effect on Sustained Attention. 2015. PMC.
2. Allen AP, Smith AP. Effects of chewing gum and time-on-task on alertness and attention. 2012. PubMed.
3. Johnson AJ, et al. Chewing gum benefits sustained attention. 2013. PubMed.
4. Smith A. Effects of caffeine in chewing gum on mood and attention. 2009. PubMed.