The DONALD Study investigates the relationships between nutrition, growth, development, and metabolism, involving participants from Dortmund and surrounding communities in Germany. Participants were recruited starting in 1985, and the cohort initially included approximately 640 healthy children and adolescents. Over the years, the study has continued to enrol more infant participants, reaching over 2,000 as of 2023. Participants are followed up annually, with additional visits in the first two years of life, and the study plans to continue these follow-ups until young adulthood.
Study design
Cohort
Number of participants at first data collection
2,375 (participants as of 2023)
Recruitment is ongoing
Age at first data collection
Varied (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1985
Primary Institutions
University of Bonn (Rheinische Friedrich-Wilhelms-Universität Bonn)
Profile paper DOI
Funders
Federal Ministry of Education and Research (Bundesministerium für Bildung und Forschung, BMBF) now known as Federal Ministry of Research, Technology and Space (Bundesministerium für Forschung, Technologie und Raumfahrt, BMFTR)
Federal Office for Agriculture and Food (Bundesanstalt für Landwirtschaft und Ernährung, BLE)
Ministry of Science and Research of North Rhine-Westphalia
Project DEAL (Projekt DEAL)
World Cancer Research Fund (WCRF)
Ongoing?
Yes
Data types collected
Engagement
Keywords
Consortia and dataset groups