By James Davey LONDON (Reuters) – Almost half of Britons are changing what they buy to feed their families as they try to navigate a worsening cost-of-living crisis, according to survey data published on Wednesday. The research from food assurance scheme Red Tractor and polling firm YouGov found that 46% of people are changing their buying habits, with 30% purchasing less meat and 13% buying less fruit and vegetables. They said 24% of shoppers are trading down, or buying what they perceive to be lower quality products. Their research also showed an 8% dip in trust in UK food since Red Tractor …