30 Jun 2017 --- A new set of rules banning the advertising of high fat, salt or sugar (HFSS) food or drink products in traditional and online children’s media and other sites is set to come into force in the UK tomorrow. The new Committee of Advertising Practice (CAP) rules pertain to media channels where children make up over 25 percent of the audience. Representatives of the UK Food and Drink Federation and advocacy groups have responded positively to the changes.