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Behavioural determinants of obesity
Kirsten L Rennie1, Laura Johnson, Susan A Jebb
1MRC Human Nutrition Research, Elsie Widdowson Laboratory, Fulbourn Road, Cambridge CB1 9NL, UK. klr1000@cam.ac.uk
Best Practice & Research. Clinical Endocrinology & Metabolism
|September 10, 2005
Summary
Childhood obesity stems from genetics and behavior, like diet and activity. More research is needed to understand behavioral factors and guide interventions for preventing excess weight gain.
Area of Science:
- Pediatric Health
- Behavioral Science
- Public Health
Background:
- Childhood obesity results from a complex interaction between genetic predisposition and behavioral factors, particularly diet and physical activity.
- Limited evidence exists on specific behavioral factors influencing childhood weight gain, with unclear effects of growth and development.
Purpose of the Study:
- To review and synthesize evidence on behavioral risk factors associated with childhood obesity.
- To identify gaps in current research and highlight the need for more robust evidence to inform interventions.
Main Methods:
- Review of existing literature, primarily cross-sectional studies, examining behavioral factors and childhood weight gain.
- Identification of postulated behavioral risk factors including energy density of diet, sugar-sweetened beverage consumption, portion sizes, eating patterns, sedentary behavior, and physical activity levels.
Main Results:
- Evidence for specific behavioral factors is limited and often yields conflicting results due to reliance on cross-sectional data.
- Postulated risk factors include high-energy-density diets, sugar-sweetened beverages, large portion sizes, and low physical activity.
Conclusions:
- More prospective studies with accurate measures of exposures and body composition are essential.
- Robust evidence is needed to develop effective interventions for long-term behavioral change and prevention of childhood excess weight gain.