Funding: This study was conducted as a part of the ‘‘EuropeaN Energy balance Research to prevent excessive weight Gain among Youth’’ (ENERGY)-project. The
ENERGY-project is funded by the Seventh Framework Programme (CORDIS FP7) of the European Commission, HEALTH (FP7-HEALTH-2007-B), Grant agreement
no. 223254. The content of this article reflects only the authors’ views and the European Community and is not liable for any use that maybe made of the
information contained therein. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.