About the Authors

Suzanna E. Forwood

Sef26@cam.ac.uk

Affiliation Behaviour and Health Research Unit, Department for Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Amy Ahern

Affiliation Medical Research Council Human Nutrition Research, Cambridge, United Kingdom

Gareth J. Hollands

Affiliation Behaviour and Health Research Unit, Department for Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Paul C. Fletcher

Affiliation Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom

Theresa M. Marteau

Affiliation Behaviour and Health Research Unit, Department for Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Competing Interests

SEF, AA, GJH and TMM have declared that no competing interests exist. PCF has read the journal’s policy. He has occasionally received consultancy fees from GlaxoSmithKline plc, UK. No other competing interests exist. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: SEF AA GJH TMM. Performed the experiments: SEF. Analyzed the data: SEF. Wrote the paper: SEF AA GJH PCF TMM.