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QUESTION

does chewing gum help with stress?

the research says probably a little, and it is genuinely mixed. scholey and colleagues found chewing gum lowered cortisol during a lab stress task, while a later re-examination and a separate study got less clear-cut results. read chewing as a modest contributor, not the reason to buy anything.

the supportive findings

scholey and colleagues (2009) had participants chew gum during an acute laboratory stress task and recorded lower salivary cortisol plus better self-reported mood than a control group that did not chew. no active ingredient was involved — the gum was ordinary.

sketchley-kaye and colleagues (2011) looked at social stress specifically and reported changes in state anxiety and alertness, which is the closest analogue to the presentation-or-interview case.

the findings that complicate it

johnson and colleagues (2011) published a re-examination of multi-task-induced shifts in stress, mood and alertness, and the picture there is less tidy. smith (2010) found effects differed by whether volunteers were already stressed to begin with.

so the literature does not deliver a clean verdict. it delivers a plausible, modest, condition-dependent effect — which is a normal state of affairs for behavioural research and a bad fit for a marketing headline.

why the mechanism is at least sensible

the usual explanation is that rhythmic chewing is not something a body under genuine threat does, so the motion reads as a mild safety signal. that is a plausible story rather than a settled one.

for nula it is a supporting argument, not the pitch. the actives are the product; the chewing is a reason the format was chosen.

common follow-ups

for the chewing effect specifically, the trials used ordinary gum, so plausibly yes. that is worth knowing before you buy anything.

for the l-theanine and gaba, and for a base without sugar or aspartame. if all you want is the chewing effect, a pack of sugar-free gum is cheaper and we are not going to pretend otherwise.

sources

  1. Scholey and colleagues (2009). Chewing gum alleviates negative mood and reduces cortisol during acute laboratory psychological stress. Physiology & Behavior.
  2. Sketchley-Kaye and colleagues (2011). Chewing gum modifies state anxiety and alertness under conditions of social stress. Nutritional Neuroscience.
  3. Johnson and colleagues (2011). Chewing gum moderates multi-task induced shifts in stress, mood, and alertness. A re-examination. Appetite.
  4. Smith (2010). Effects of chewing gum on cognitive function, mood and physiology in stressed and non-stressed volunteers. Nutritional Neuroscience.

These references describe research on the ingredients, not on Nula Calm Gum. Last reviewed August 17, 2026.

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does chewing gum help with stress? | Nula