menuCH-Kids, the First Swiss National Nutrition Survey in Children and Adolescents

Inclusion Criteria: * Healthy and free-living children aged between 6 and 17 years * Permanent residents in Switzerland * Participants and their legal guardian(s) must be able to read and speak German, French or Italian * Informed consent provided Exclusion Criteria: * Known severe chronic disease (e.g. renal, gastrointestinal, cognitive disorder) * Hospitalization (overnight stay in the last four weeks before the visit) * Pregnancy and breastfeeding * Insufficient knowledge of German, French or Italian or inability to understand the study and/or to provide informed consent * Inability to come to recruitment center * Refusal to be informed about study incidental findings concerning the child