First Online: 6 November 2019
Compliance with Ethical Standards
: This article is based on a presentation by Lewis J. James to the GSSI Expert Panel in March 2019. Funding for attendance at that meeting together with an honorarium for preparation of this article were provided by the GSSI, with this honorarium being paid to Lewis J. James’s institution, not him personally.
: Lewis J. James has previously received funding for research from PepsiCo, Inc. and Volac International Ltd for hydration-related research. Lewis J. James has also received funding to attend conferences from the GSSI and Danone Nutricia. In all cases, no personal payments were received by Lewis James. Mark P. Funnell, Ruth M. James and Stephen A. Mears have no conflicts of interest that are directly relevant to the content of this article.