A ban on marketing of foods/beverages to children: the who, why, what and how of a population health intervention.

There is increasing recognition in Canada and elsewhere of the need for population-level interventions related to diet. One example of such an intervention is a ban on the marketing of foods/beverages to children, for which several health organizations have or are in the process of developing position statements. Considering the federal government's inaction to impose restrictions that would yield meaningful impact, there is opportunity for the health community to unite in support of a stronger set of policies. However, several issues and challenges exist, some of which we outline in this commentary. We emphasize that, despite challenges, the present and predicted future of diet-related illness in Canadian children is such that population-level intervention is necessary and becoming increasingly urgent, and there is an important role for the health community in facilitating action.