Peter Scarborough|Anne Matthews|Helen Eyles|Asha Kaur|Charo Hodgkins|Monique M. Raats|Mike Rayner
Reds are more important than greens: how UK supermarket shoppers use the different information on a traffic light nutrition label in a choice experiment
British Heart Foundation|University of Oxford|British Heart Foundation|University of Oxford|University of Auckland|British Heart Foundation|University of Oxford|University of Surrey|University of Surrey|British Heart Foundation|University of Oxford
colour coded frontofpack nutrition labelling traffic light labelling recommended use uk since 2006 voluntary scheme used major retailers manufacturers clear consumers use labels make single decision relative healthiness foods research questions four nutrients uk traffic light labels total fat saturated fat sugar salt influence decisions green lights red lights greater influence age gender differences people use colour nutrient information recruited participants uk supermarket chain membership list conduct online choice experiment may 2014 analysed data using multilevel logisitic models food choices n 3321 nested individuals n 187 unit analysis food reds 114 95 confidence intervals 103 125 times less likely chosen healthy whereas food greens 61 56 66 times likely chosen healthy foods better colours saturated fat salt 73 67 80 71 65 78 times likely chosen healthy significantly greater total fat odds ratio 48 44 53 sugar 52 47 56 results broadly similar different genders age groups found participants concerned avoiding reds choosing greens saturated fat salt greater influence decisions regarding healthiness total fat sugar could influence decisions food reformulation guidance using nutrition labelling