Professor Donal O'Shea:

The food and the drinks industry went very quiet when we started looking at a top shelf tax several years ago for high-fat, high-salt, high-sugar foods, on which 85% of food advertising is spent and on which 95% of celebrity endorsement occurs. It is one step at a time. We must see what happens with the sugar tax and if the wholesalers begin to change their buy one, get one free promotions towards fresher produce.