title: Downsizing: policy options to reduce portion sizes to help tackle obesity.
authors.affiliation: Behaviour and Health Research Unit, University of Cambridge, Cambridge, UK tm388@cam.ac.uk.
authors.forename: Theresa M
authors.initials: TM
authors.lastname: Marteau
authors.affiliation: Behaviour and Health Research Unit, University of Cambridge, Cambridge, UK.
authors.forename: Gareth J
authors.initials: GJ
authors.lastname: Hollands
authors.affiliation: Behaviour and Health Research Unit, University of Cambridge, Cambridge, UK.
authors.forename: Ian
authors.initials: I
authors.lastname: Shemilt
authors.affiliation: Nuffield Department of Primary Care Health Sciences, University of Oxford, UK.
authors.forename: Susan A
authors.initials: SA
authors.lastname: Jebb
mesh_terms: D006291:Health Policy; D006801:Humans; D009765:Obesity / Q000453:epidemiology* / Q000517:prevention & control*; D064787:Portion Size; D006113:United Kingdom