comparison with the food groups of the FBDG. In total
116 food items were recomposed. After the aggregation
and disaggregating procedures, food items were divided
into 57 food groups of similar nutrient content, based
on the classification of the Flemish FBDG and the
expert opinion of the investigators (see food groups
listed in tables 2 and 3). In the Flemish FBDG, products
within a food group have been categorised into three