About the Authors

Esther Zimmermann

ez@ipm.regionh.dk

Affiliations Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen, Denmark, Institute of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark

Claus Holst

Affiliation Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen, Denmark

Thorkild I. A. Sørensen

Affiliation Institute of Preventive Medicine, Copenhagen University Hospital, Copenhagen, Denmark

Competing Interests

Thorkild I. A. Sørensen has various industrial collaborations on obesity research as indicated on the website http://www.ipm.hosp.dk/person/tias/Disclosures.html. Esther Zimmermann and Claus Holst both declare no conflicts of interest. 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: EZ CH TIAS. Performed the experiments: EZ CH TIAS. Analyzed the data: EZ CH. Wrote the paper: EZ CH TIAS.