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Eating behavior and childhood overweight among population-based elementary schoolchildren in Japan
Hirotaka Ochiai1, Takako Shirasawa, Rimei Nishimura
1Department of Public Health, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan. h-ochiai@med.showa-u.ac.jp
Insights
Thoroughly chewing food and avoiding eating until full are linked to lower childhood overweight risk. These eating behaviors may help prevent obesity in elementary schoolchildren.
Area of Science:
- Pediatrics
- Nutritional Science
- Public Health
Background:
- Childhood overweight is a significant public health concern.
- Understanding the influence of eating behaviors on childhood overweight is crucial for prevention strategies.
Purpose of the Study:
- To investigate the association between specific eating behaviors (eating until full, chewing thoroughly) and the prevalence of overweight in Japanese elementary schoolchildren.
- To identify potential behavioral interventions for childhood overweight prevention.
Main Methods:
- Cross-sectional study involving 4027 fourth-grade schoolchildren (9-10 years old) in Japan.
- Data collected via self-administered questionnaires on eating behaviors and direct measurements of height and weight.
- Overweight status determined using International Obesity Task Force criteria.
Main Results:
- Chewing thoroughly was significantly associated with a decreased odds ratio for being overweight.
- Eating until full was significantly associated with an increased odds ratio for being overweight, particularly in boys (OR: 1.50).
- The association between eating until full and overweight was stronger in boys who did not chew thoroughly (OR: 2.02).
Conclusions:
- Eating habits, specifically eating until full and insufficient chewing, are associated with childhood overweight.
- Promoting thorough chewing may be a viable strategy for preventing overweight and obesity in children.
Abstract:
This study investigated the relationship between eating behavior and childhood overweight among population-based elementary schoolchildren in Japan. Data was collected from fourth graders (9 or 10 years of age) from Ina Town, Saitama Prefecture, Japan from 1999 to 2009. Information about subjects' sex, age, and lifestyle, including eating behaviors (eating until full and chewing thoroughly), was obtained using a self-administered questionnaire, and height and weight were measured directly. Overweight was determined according to the definition established by the International Obesity Task Force. Data from 4027 subjects (2079 boys and 1948 girls) were analyzed. Chewing thoroughly was associated with a significantly decreased odds ratio (OR) for being overweight, whereas eating until full significantly increased the OR for being overweight (OR: 1.50, 95% confidence interval: 1.16-1.94) among boys. However, eating until full was not associated with a significantly increased OR for being overweight among the group that reported chewing thoroughly, whereas it was associated with a significantly increased OR for being overweight (2.02, 1.38-2.94) among boys who did not chew thoroughly. In conclusion, eating until full or not chewing thoroughly was associated with being overweight among elementary schoolchildren. Results of this study suggest that chewing thoroughly may be an avenue to explore childhood overweight prevention efforts.
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