Now hear this: Study explores the sound of a full stomach

April 18, 2016 at 4:31PM
A recent study using pretzels and headphones suggests that the sound of chewing is an important cue that lets us know how much we've eaten. Photo credit: Jaren Wilkey/Brigham Young University
A recent study using pretzels and headphones suggests that the sound of chewing is an important cue that lets us know how much we've eaten. Photo credit: Jaren Wilkey/Brigham Young University (The Minnesota Star Tribune)

Listen closely, weight watchers: if you want to eat less, consult your ears.

Hearing is apparently the forgotten food sense. New research suggests that the ability to hear ourselves chewing our food is an important cue that lets us know when we're full.

Calling it "The Crunch Effect," researchers at Brigham Young University and Colorado State University discovered a link between our ears and stomachs by conducting an unusual experiment with 71 college students.

They fed them a crunchy snack — pretzels — and asked them to wear headphones. One group listened to loud white noise while they munched. The other group was exposed to quieter noise.

Who ate more? The ones listening to the loud noise. They scarfed down four pretzels versus the quiet eaters' 2.75 pretzels, according to the study published in the journal, Food Quality and Preference.

The results suggest that the sound of chewing helps us gauge how much we've consumed. Other loud sounds may interfere with our ability to detect such cues — worth noting by those who watch TV or listen to music through earbuds while dining.

"Our research highlights the importance of intrinsic auditory food cues on consumption," the study authors wrote. Their findings also lend support to the notion that mindful eating practices have an impact on how much we consume.

"To Your Health" offers quick doses of health news several times a week.

Allie Shah • 612-673-4488

@allieshah

about the writer

about the writer

Allie Shah

Deputy editor

Allie Shah is deputy local editor. She previously supervised coverage of K-12 and higher education issues in Minnesota. In her more than 20 year journalism career at the Minnesota Star Tribune, Shah has reported on topics ranging from education to immigration and health.

See Moreicon