Almost one in five parents (19%) have to buy unhealthy food for their children because they can’t afford healthier options, research shows today. The majority (60%) of those who had to buy unhealthy food for their kids in the last year said they were worried about what they were feeding their children, according to the survey by children’s charity Barnardo's. The research comes as part of a charity campaign backed by celebrity chefs Jamie Oliver and Tom Kerridge calling for an urgent extension