The joint impact on being overweight of self reported behaviours of eating quickly and eating until full: cross sectional survey
2008

Eating Habits and Overweight in Japan

Sample size: 3287 publication Evidence: moderate

Author Information

Author(s): Maruyama Koutatsu, Sato Shinichi, Ohira Tetsuya, Maeda Kenji, Noda Hiroyuki, Kubota Yoshimi, Nishimura Setsuko, Kitamura Akihiko, Kiyama Masahiko, Okada Takeo, Imano Hironori, Nakamura Masakazu, Ishikawa Yoshinori, Kurokawa Michinori, Sasaki Satoshi, Iso Hiroyasu

Primary Institution: Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University

Hypothesis

Are eating quickly and eating until full associated with being overweight?

Conclusion

Eating until full and eating quickly are associated with being overweight in Japanese men and women, and these eating behaviours combined may have a substantial impact on being overweight.

Supporting Evidence

  • Eating until full was associated with a higher body mass index.
  • Eating quickly was linked to increased body weight.
  • The combination of both eating behaviours had a supra-additive effect on being overweight.

Takeaway

Eating fast and eating until you're full can make you gain weight. If you do both, it can be even worse for your weight.

Methodology

Cross sectional survey of adults aged 30-69 in two Japanese communities, using self-reported questionnaires on eating habits and body mass index measurements.

Potential Biases

Potential bias from self-reported data and unmeasured confounding factors.

Limitations

Self-reported eating patterns may not be valid, and the study's cross-sectional nature limits causal inferences.

Participant Demographics

3287 adults (1122 men, 2165 women) aged 30-69.

Statistical Information

P-Value

p<0.05

Confidence Interval

1.53 to 2.62 for men; 1.53 to 2.40 for women

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1136/bmj.a2002

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