About the Authors

Jamie Hartmann-Boyce

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Visualization, Writing – original draft, Writing – review & editing

Jamie.hartmann-boyce@phc.ox.ac.uk

Affiliation Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom

Paul Aveyard

Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Supervision, Writing – review & editing

Affiliation Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom

Carmen Piernas

Roles Formal analysis, Methodology, Project administration, Writing – review & editing

Affiliation Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom

Constantinos Koshiaris

Roles Conceptualization, Data curation, Formal analysis, Methodology, Validation, Writing – review & editing

Affiliation Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom

Carmelo Velardo

Roles Conceptualization, Data curation, Investigation, Methodology, Project administration, Resources, Software, Writing – review & editing

Affiliation Institute of Biomedical Engineering, Department of Engineering Sciences, Old Road Campus Research Building, University of Oxford, Headington, Oxford, United Kingdom

Dario Salvi

Roles Data curation, Investigation, Project administration, Resources, Software, Writing – review & editing

Affiliation Institute of Biomedical Engineering, Department of Engineering Sciences, Old Road Campus Research Building, University of Oxford, Headington, Oxford, United Kingdom

Susan A. Jebb

Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Supervision, Writing – review & editing

Affiliation Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Primary Care Building, Radcliffe Observatory Quarter, Oxford, United Kingdom

Competing Interests

I read the journal's policy and the authors of this manuscript have the following competing interests: PA: holds a grant from Cambridge Weight Plan to evaluate their programme. It provides no personal benefit to him nor the University of Oxford beyond reimbursing the University and its staff for their work. He has collaborated with other weight loss companies in research in which those companies have donated weight loss services to the English NHS. SJ is the principle investigator in a trial funded by the Cambridge Weight Plan and a co-investigator in two further trials where the costs of the treatment are donated by WeightWatchers and Slimming World. The other authors declared that no competing interests exist. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.