Greater Numbers of Chews and Bites and Slow External Rhythmic Stimulation Prolong Meal Duration in Healthy Subjects.

Background/Aim: Slow eating is recommended for obese individuals. We aimed to determine the associations between meal duration and various factors (sex, numbers of chews and bites, eating tempo (including forced rhythm with a metronome) and BMI). Methods: Using a test meal (a quarter slice of pizza)...

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Published in:Nutrients Vol. 17; no. 6; pp. 962 - 974
Main Authors: Aoshima, Megumi, Deguchi, Kanako, Yamamoto-Wada, Risako, Ushiroda, Chihiro, Hiraiwa, Eri, Yokoi, Miyuki, Ono, Chisato, Yoshida, Mitsuyoshi, Iizuka, Katsumi
Format: pictorial research tables/charts Journal Article
Published: MDPI Mar2025
Online Access:View this record in EBSCOhost
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      dt: Mar2025
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      pub: MDPI
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        atl: Greater Numbers of Chews and Bites and Slow External Rhythmic Stimulation Prolong Meal Duration in Healthy Subjects.
      aug:
        au:
          Aoshima, Megumi
          Deguchi, Kanako
          Yamamoto-Wada, Risako
          Ushiroda, Chihiro
          Hiraiwa, Eri
          Yokoi, Miyuki
          Ono, Chisato
          Yoshida, Mitsuyoshi
          Iizuka, Katsumi
        affil: Faculty of Medicine, Fujita Health University, Toyoake 470-1192, Japan
      sug:
        subj:
          Mastication Evaluation
          Food Intake Evaluation
          Meals
          Time Factors
          Cues
          Body Mass Index Evaluation
          Eating Evaluation
          Human
          Eating Behavior
          Male
          Female
          Confidence Intervals
          Adult
          Middle Age
          Multivariate Analysis
          Descriptive Statistics
          Funding Source
          Adult: 19-44 years
          Middle Aged: 45-64 years
          Male
          Female
      ab: Background/Aim: Slow eating is recommended for obese individuals. We aimed to determine the associations between meal duration and various factors (sex, numbers of chews and bites, eating tempo (including forced rhythm with a metronome) and BMI). Methods: Using a test meal (a quarter slice of pizza), we tested the sex difference of the meal duration, numbers of chews and bites, and eating tempo for thirty three healthy subjects (M: 15; F: 18) aged 37.2 ± 11.1 years via unpaired t tests. Next, factors influencing meal duration were identified via multivariate analysis (adjusted for sex), with meal duration as the dependent variable. Results: The meal duration and numbers of chews and bites differed significantly between sexes (63.1 ± 20.7 vs. 87.4 ± 22.8, p = 0.003; 80.3 ± 28.7 vs. 107.0 ± 36.1, p = 0.02; 2.1 ± 1.1 vs. 4.5 ± 2.6, p = 0.001, respectively), but the chewing tempo was similar (p = 0.32). Meal duration was associated with the number of chews (β = 0.6 [0.4, 0.7], p < 0.001) and bites (5.8 [2.5, 9.2], p = 0.001) but not with BMI (p = 0.52) or chewing tempo (p = 0.99). Finally, when a metronome was used to force rhythmic stimulation (0/40/80/160 bpm), compared with 0 bpm, slow stimulation (40 bpm) resulted in increased meal duration (mean difference [95% CI] = −47.0 [−66.4, −27.7], p < 0.0001), chews (−28.6 [−44.5, 12.8], p = 0.0003), and bites (−4.9 [−7.9, 1.9] p = 0.001) and delayed tempo (10.4 [4.5, 16.3], p = 0.0004). Conclusions: Meal duration was positively associated with the numbers of chews and bites and negatively associated with chewing tempo. Thus, increasing the numbers of bites and chews and slowing the eating tempo may prolong meal duration.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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