The overall objective of our research is to identify dietary components associated with better health and quality of life. For this project in particular, we focus on the relationship of foodgroups, foods, and nutrients and cognitive performance. ALSPAC is a rich source of diet and nutrition data throughout childhood and there is already existing evidence that food intake patterns in early childhood are associated with children's IQ. We wish to extend upon the existing research to investigate how nutrient and food intakes (including dietary patterns) throughout childhood but particularly in the early school years relate to more specific measures of children's cognition (atttentional control and other executive functions), to overall school performance and to parents' ratings of child behavior. The findings from this study will be used to inform the design of nutrition-based interventions in school children in the two other participating countries (Germany and Spain).