Summary: New research led by UCL indicates that a young child’s tendency to eat more or less in response to stress or negative emotions is shaped largely by the home environment rather than by genetic factors. Parental behaviour and family mealtime context appear to be important influences.
Source: UCL.
Home environment, not genes, is the primary influence on emotional eating in young children, a UCL-led study finds
A study published in Pediatric Obesity and led by researchers at UCL shows that genetic factors have only a small influence on emotional eating in early childhood. The research suggests that shared environmental influences within the family play the dominant role in whether young children increase or decrease their food intake when upset, anxious or stressed.
The analysis used data from more than 398 British twins participating in the Twins Early Development Study (TEDS). Parents completed questionnaires about their children’s tendencies to eat more or less than usual in response to feelings such as sadness or anxiety when the children were four years old. By comparing similarities between identical and non-identical twin pairs, the team estimated the relative contributions of genetics and the home environment to emotional over-eating and under-eating.
Unlike other childhood eating behaviours—such as food fussiness, which prior research has shown to be strongly influenced by genetic factors—emotional eating in this sample was mainly explained by environmental factors that are shared by siblings. To test whether family risk of obesity altered these findings, the researchers purposely included a subset of families in which one or both parents had obesity. Even in these higher-risk households, the shared home environment continued to be the primary driver of emotional eating behaviour in children.
Dr Moritz Herle (UCL Great Ormond Street Institute of Child Health), who co-led the research, explained the variability the team sees in responses to stress: “Experiencing stress and negative emotions can have a different effect on appetite for different people. Some crave their favourite snack, whereas others lose their desire to eat altogether when feeling stressed or sad. This study supports our previous findings suggesting that children’s emotional over- and under-eating are mostly influenced by environmental factors completely shared by twin pairs and that genes are largely unimportant for emotional overeating in childhood.”
Senior lead researcher Dr Clare Llewellyn (UCL Institute of Epidemiology & Health) highlighted the urgent need for further longitudinal study and practical guidance: “We actually don’t know a great deal about the physical and mental health consequences of emotional eating in childhood, because studies that track those children over many years haven’t been done. However, a tendency to want to eat more in response to negative emotions could be a risk factor for the development of obesity, and emotional over- and under-eating could be potentially important in the development of eating disorders such as anorexia nervosa or binge eating disorder. Understanding how these tendencies develop is crucial, because it helps researchers to give advice about how to prevent or change them, and where to focus future research.”
The research team intends to continue investigating which specific aspects of the home environment are most influential. Potential targets include parental feeding practices, family stress levels at mealtimes, emotional climate in the household, and modelling of coping strategies. Identifying actionable environmental factors is essential for designing interventions aimed at preventing unhealthy emotional eating patterns and reducing later risk of obesity and disordered eating.
Source: UCL
Publisher: NeuroscienceNews.com (organized summary)
Image source: Image in the public domain.
Original research: Study published in Pediatric Obesity.
This study emphasizes the importance of family context in shaping emotional eating behaviours in early childhood. For parents, caregivers and professionals working with young children, the findings suggest focusing on the home environment—parental feeding strategies, emotional support, and mealtime stress—to help prevent the development of persistent emotional overeating or undereating. Future research that follows children across development will be needed to determine long-term health implications and to identify the most effective points for intervention.
Feel free to share this summary with colleagues and caregivers who are interested in child nutrition, family health, and prevention of obesity and eating disorders.