About the Authors

David Simmons

dsworkster@gmail.com

Affiliation Institute of Metabolic Science, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, England

A. Toby Prevost

Affiliation Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, Cambridgeshire, England

Chris Bunn

Affiliation Institute of Metabolic Science, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, England

Daniel Holman

Affiliation Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, Cambridgeshire, England

Richard A. Parker

Affiliation Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, Cambridgeshire, England

Simon Cohn

Affiliation Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, Cambridgeshire, England

Sarah Donald

Affiliation Institute of Metabolic Science, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, England

Charlotte A. M. Paddison

Affiliation Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, Cambridgeshire, England

Candice Ward

Affiliation Institute of Metabolic Science, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, England

Peter Robins

Affiliation Institute of Metabolic Science, Cambridge University Hospitals NHS Foundation Trust, Cambridge, Cambridgeshire, England

Jonathan Graffy

Affiliation Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, Cambridgeshire, England

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DS JPG ATP SC SD PR CB CW CAMP. Performed the experiments: DS JPG. Analyzed the data: RAP DH. Wrote the paper: DS ATP CB DH RAP SC SD CAMP CW PR JPG. Provided statistical advice and undertook the randomization: ATP.