Health campaigners are calling for restrictions on fast food adverts at large sporting events, but would limiting these adverts make any difference to rising levels of obesity?
It is almost impossible to go a day without seeing some form of advertisement, whether plastered across large billboards, interrupting television programmes or personalised adverts online, which track our shopping habits by monitoring the websites we visit.
Latest research suggests that almost a quarter of adults are obese, and campaigners from the Academy of Medical Royal Colleges (AoMRC) say obesity is the "single greatest public health threat in the UK."
They are calling for companies like Coca-Cola and McDonald's to restrict advertising at the Olympics as it "completely sends the wrong message, especially to children," said Prof Terence Stephenson, a spokesman from AoMRC.