Dietary modelling is a tool for estimating food chemical exposures (intake) from the diet. For some years, food authorities around the world have employed dietary modelling approaches to establish if dietary exposure to specific food contaminants poses an unacceptable threat to public health and safety. Dietary modelling is a crucial component of the ATDS because it converts analytical results for particular foods into dietary exposure estimates that can be compared to established reference health standards. This comparison is important for determining whether the projected dietary exposure to food chemicals poses an unacceptable health risk to any population group. While dietary modelling is a scientific method for determining the amounts of nutrients consumed by an individual or a community, the accuracy of these intake estimates is dependent on the quality of the data included in the models.