About the Authors

Alex Ghanouni

Affiliation Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, 1–19 Torrington Place, London, WC1E 6BT, United Kingdom

Susanne F. Meisel

Affiliation Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, 1–19 Torrington Place, London, WC1E 6BT, United Kingdom

Jolyn Hersch

Affiliation School of Public Health, University of Sydney, Edward Ford Building, Sydney, NSW 2006, Australia

Jo Waller

Affiliation Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, 1–19 Torrington Place, London, WC1E 6BT, United Kingdom

Jane Wardle

† Deceased.

Affiliation Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, 1–19 Torrington Place, London, WC1E 6BT, United Kingdom

Cristina Renzi

c.renzi@ucl.ac.uk

Affiliation Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, 1–19 Torrington Place, London, WC1E 6BT, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AG SFM JH J. Waller J. Wardle CR. Performed the experiments: AG SFM JH. Analyzed the data: AG SFM JH. Contributed reagents/materials/analysis tools: AG SFM JH. Wrote the paper: AG SFM JH J. Waller J. Wardle CR.