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Chewing Gum and Appetite: Does Chewing Gum Actually Help With Weight Loss?

"Chew gum instead of snacking" is advice almost everyone who's ever tried to control their appetite between meals has heard — but rarely does anyone check whether there's actually data behind it. It turns out there is, and from two independent experimental studies: chewing gum genuinely, measurably reduces later snack and calorie intake at the next meal. The catch is that the size of this effect is much more modest than the popular narrative of gum as a "weight-loss tool" would suggest — we're talking about a difference of a few dozen kilocalories, not hundreds. In this article we show exactly what was measured, how large the effect is in numbers, and why it's worth treating as an interesting but small piece of the puzzle rather than a standalone strategy.

AKdr Anna KowalczykAugust 24, 202610 min read
Table of contents

TL;DR — key takeaways

Advice so popular that almost no one asks for evidence

"Feel like snacking between meals? Chew gum" is one of those dietary tips that has circulated so widely and for so long that it's become almost self-evident, requiring no justification. But does chewing gum actually affect appetite and subsequent food intake in a way that can be measured in a controlled experiment?

The answer, as is often the case in nutrition science, is: yes, but on a much smaller scale than popular advice might suggest. Two independent experimental studies did show a measurable effect — and it's precisely the numbers from these studies that let us judge whether it's worth adding this habit to your routine, and what to realistically expect from it.

The first study — less hunger and less pasta at lunch

The starting point is the 2007 work by Hetherington and Boyland, published in the journal Appetite — one of the first controlled studies testing the effect of chewing gum on subsequent food intake.

Short-term effects of chewing gum on snack intake and appetite

Moderate evidence

Hetherington MM, Boyland E · Appetite 48(3):397-401 · 2007

In the gum-chewing condition, fasting hunger ratings were lower than without gum chewing (t=2.66, p=0.01). At the subsequent meal (lunch), participants consumed significantly less pasta after chewing gum than without it — 41 g less, or 68 kcal less (t=2.32, p=0.03).

View study

68 kcal less is real, but a modest difference

Moderate evidence

A 68 kcal difference at a single meal is an effect that's statistically significant and reproducible under experimental conditions, but in practice corresponds to roughly one square of chocolate or a small handful of nuts. It's not a difference that will drive significant weight loss on its own, but it demonstrates a real, measurable mechanism by which chewing gum affects subsequent eating behavior.

The second study — replication in a larger group

A decade later, Melanson and Kresge repeated a similar experiment in a larger group of participants, publishing their results in 2017, also in Appetite — which matters, because an independent replication in a different sample increases confidence in earlier observations.

Chewing gum decreases energy intake at lunch following a controlled breakfast

Moderate evidence

Melanson KJ, Kresge DL · Appetite 118:1-7 · 2017

In 60 participants, chewing gum was compared with no gum chewing before free ad-lib snacking about 3 hours after a controlled breakfast. Chewing gum reduced energy intake by 36 kcal (401.8±22 kcal in the gum group vs 437.7±23 kcal without gum; p=0.04). Desire to reach for sweet snacks specifically increased less in the gum-chewing group (p=0.004).

View study

A consistent, if smaller, effect in a larger sample

Moderate evidence

36 kcal is less than the 68 kcal from the first study, but the direction of the effect is the same — chewing gum consistently reduces subsequent calorie intake across both independent studies. It's worth noting an interesting detail: the effect was particularly pronounced regarding the desire for sweet snacks, suggesting that gum (often mint- or fruit-flavored) may work partly by satisfying the sensory component of a craving for sweetness.

Why would chewing gum affect appetite at all

The mechanism isn't fully established, but researchers point to several likely contributing factors: the act of chewing itself may signal satiety by stimulating mechanoreceptors in the mouth and jaw, the flavor of gum (usually mint or fruit) may partly satisfy a craving for something sweet without delivering calories, and keeping the mouth and hands occupied with chewing may simply reduce mindless snacking driven by boredom or habit.

Myth

Chewing gum is an effective weight-loss strategy that genuinely cuts calories over the day.

Fact

Both studies discussed show a real but small effect — on the order of 36 to 68 kcal less at a single meal. That's roughly what you'd save by skipping one teaspoon of sugar in your coffee. Chewing gum can be a useful, minor element supporting appetite control, but it won't replace a caloric deficit achieved through overall eating habits.

What this means in practice

Practical takeaways from both studies

  • Chewing gum between meals can genuinely, if modestly, lower hunger and calorie intake at the next meal — an effect on the order of 36-68 kcal across both studies
  • The effect appears particularly pronounced in the context of a desire for sweet snacks, suggesting a partly sensory mechanism of action
  • Chewing gum shouldn't be treated as a standalone weight-loss strategy — it's more of a minor support that may help at specific, recurring moments of temptation to snack
  • It's worth choosing sugar-free gum, so as not to cancel out the potential benefit with extra calories from the gum itself
  • The effect was observed under short, controlled experimental conditions — long-term habits and individual differences may affect how strongly this mechanism operates in everyday life

Limitations worth keeping in mind

What these studies don't prove

Both studies measured the effect over a short time horizon — a single meal following an episode of gum chewing — not long-term effects on body weight under everyday conditions over weeks or months. The samples were relatively small (the Hetherington and Boyland study doesn't state the exact sample size in its abstract; the Melanson and Kresge study included 60 people), which limits confidence in generalizing the results to a broader population. It also wasn't studied whether the effect persists with regular, long-term daily gum chewing, or whether it varies by age, sex, or participants' baseline body weight.

Practical summary

QuestionShort answer
Does chewing gum reduce appetite?Yes, in the short term — lower fasting hunger ratings in the Hetherington and Boyland study
How many fewer calories are eaten afterward?36 to 68 kcal less at the next meal, depending on the study
Is this a large effect?No — it's a modest but statistically significant and reproducible difference
Will it replace a diet?No — it's a minor support, not a standalone weight-loss strategy
What kind of gum should you pick?Sugar-free, so as not to add unnecessary calories from the gum itself

Chewing gum and appetite in brief

Our editorial recommendation

This is a rare example of a popular dietary tip backed by real, replicated confirmation across two independent studies — but on a scale far more modest than the popular narrative suggests. Chewing sugar-free gum between meals is a cheap, simple habit with no significant risk that may offer small support for appetite control, especially at moments of craving for sweet snacks.

It's not worth expecting miracles from it, though — it's one of many small elements that can add up together, but on their own won't replace thoughtful eating habits or an appropriate caloric deficit.

36 to 68 kilocalories isn't a number that will transform anyone's physique — but it's a number that shows even a small habit can have a measurable, reproducible effect on how much we eat.

Dr. Anna Kowalczyk, VitMode editorial team

Frequently asked questions

Neither study tested a specific brand of gum, but logic suggests choosing sugar-free gum — otherwise the extra calories from the gum itself could cancel out the potential, already modest, benefit for controlling intake at the next meal.

Both studies tested a single episode of gum chewing before a specific meal (lunch), not a long-term, repeated pattern throughout the day. There's no data allowing a clear determination of the optimal frequency for long-term effects.

The Melanson and Kresge study found that the desire for sweet snacks specifically increased less in the gum-chewing group (p=0.004) — suggesting the effect may be stronger for sweet cravings than for salty snacks, though the two studies combined don't allow a definitive distinction across all food categories.

These two studies focused exclusively on appetite and calorie intake and didn't evaluate other potential effects of chewing gum (such as effects on the temporomandibular joint from excessive, prolonged chewing) — that's a topic beyond the scope of the studies discussed here.

Sources

AK

dr Anna Kowalczyk

PhD in Molecular Biology (University of Warsaw), 8 years researching cellular aging

Anna oversees the editorial process and scientific review of every publication in the knowledge base. She previously researched autophagy and mitochondrial biology.

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Comments (2)

  • KW

    Kasia W. 2 weeks ago

    Very clearly explained, especially the interactions section — I hadn't seen it laid out this well anywhere else.

  • MT

    Marek T. a month ago

    Are you planning to update this with the newest study from this year? I saw an interesting meta-analysis.