“…Although different studies have characterized within-and between-person variance for energy and nutrient intakes in adults 10,11 very little information is available for children 12,13 , especially in Brazil. In addition, most studies of the child population are usually held in public health institutions and at nursery schools 14,15,16,17,18 and few population-based studies have been conducted in recent years 19,20,21,22 .…”