Footnotes

• Funding The University of Copenhagen, the University of Colorado, The Coca-Cola Company, the University of South Carolina, ShareWik Media Group.

• Competing interests SNB is a co-founder and vice president of the Global Energy Balance Network (GEBN). GEBN has received support from private philanthropy, the University of Colorado, the University of South Carolina and the University of Copenhagen. In addition GEBN has received in-kind services from ShareWIK Media Group, and an unrestricted gift from The Coca-Cola Company. SNB serves on the scientific advisory boards of Clarity, Sports Surgery Clinic, Cancer Foundation for Life; and has received unrestricted research grants from the US National Institutes of Health, the US Department of Defense; BodyMedia; Technogym; and The Coca-Cola Company. He receives book royalties from Human Kinetics.

• Provenance and peer review Not commissioned; externally peer reviewed.