Food Advertising on Television Before and After a National Unhealthy Food Marketing Regulation in Chile, 2016-2017.

Objectives. To study changes in food advertising on television after Chile's food marketing restriction was implemented in June 2016.Methods. Food advertisements shown between 6 am and 12 am on the 4 primary broadcast and 4 cable channels with the largest Chilean youth audiences during 2 random weeks in April and May 2016 and 2017 were analyzed for product nutrition and child-directed marketing.Results. The percentage of ads for foods high in energy, saturated fats, sugars, or sodium (HEFSS) decreased from 41.9% before the regulation to 14.8% after the regulation (P < .001). This decrease occurred in programs intended for children (from 49.7% to 12.7%; P < .001) as well as general audiences (from 38.5% to 15.7%; P < .001). The largest declines were seen for sodas, desserts, breakfast cereals and industrialized fruit- and vegetable-flavored drinks. Fewer HEFSS ads featured child-directed content (a decrease from 44.0% to 12.0%; P < .001), and the remaining child-directed HEFSS ads primarily aired on internationally owned cable channels.Conclusions. The significant postregulation decrease in the prevalence of HEFSS television ads suggests that children in Chile are now less exposed to unhealthy food advertising. However, television originating from national and international outlets should still be monitored for compliance.