About the Authors

Sophie C. Killer

Current address: School of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, East Midlands, United Kingdom

Affiliation School of Sport and Exercise Sciences, University of Birmingham, Birmingham, West Midlands, United Kingdom

Andrew K. Blannin

A.K.Blannin@bham.ac.uk

Affiliation School of Sport and Exercise Sciences, University of Birmingham, Birmingham, West Midlands, United Kingdom

Asker E. Jeukendrup

Current address: School of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, East Midlands, United Kingdom

Affiliation School of Sport and Exercise Sciences, University of Birmingham, Birmingham, West Midlands, United Kingdom

Competing Interests

S.C. Killer and A.K. Blannin have declared that no competing interests exist. A.E. Jeukendrup is currently employed by PepsiCo Inc. and is an adjunct Professor at the University of Birmingham. The views expressed here are the views of the authors and not those of PepsiCo Inc. The current employment of Professor Asker Jeukendrup by PepsiCo Inc. does not alter the authors' adherences to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: SCK AEJ. Performed the experiments: SCK. Analyzed the data: SCK AEJ AKB. Contributed reagents/materials/analysis tools: SCK AEJ AKB. Wrote the paper: SCK. Statistical analysis: SCK AKB AEJ. Editing of final paper: AKB AEJ.