An Eating Behaviour-Consumption Frequency of Certain Foods in Early Childhood-As a Predictor of Behaviour Problems: A 6-year follow-up study

Objectives: Eating behaviour in early childhood serves as a foundation for future health outcomes. Diet patterns can have long-term beneficial or adverse effects on social behaviour development. Therefore, the objective of this study was to evaluate food consumption frequency in 1- to 6-year-olds as an eating behaviour-related predictor of behaviour problems six years later. Methods: This longitudinal study involved 124 mother-child dyads from a project named ‘Community Empowerment and Care for Wellbeing and Health Longevity’ initiated in 1991 and conducting surveys every three years. We studied children aged 1–6 years in July 2011, with a follow-up assessment in August 2017. The primary exposure examined was the frequency of food items intake. The primary outcome was behaviour problems as assessed by the Strengths and Difficulties Questionnaire (SDQ). Results: The adjusted results suggested that a higher intake of leafy green and light-coloured vegetables were significantly associated with decreased odds of conduct problems and prosocial behaviour problems in Japanese children. However, no associations were observed among fruits, milk, small fish, eggs, soybeans, seaweed, and any SDQ subscales. Conclusion: This study shows that eating leafy green and light-coloured vegetables may have a protective effect on a child’s conduct and prosocial behaviour problems. Due consideration should be given to children’s eating habits in the early stages of their lives, to ensure better mental health. Keywords: Child; Diet; Impulsive Behaviour; Longitudinal Studies; Mental Health; Nutrients; Sugars; Vegetables.