| Work Package No | Work Package Title | Lead Participant Short Name |
| 1 | Maternal epigenetic regulation and assessment of risk to develop obesity at the pre-implantation embryo | UVEG |
| 2 | Early origins of overweight & obesity: Studies in cohorts from conception to the end of the 1st decade | CIBER/ FIHGUV |
| 3 | Clinical studies of determinants and consequences of obesity during puberty and early adulthood | REGIONH |
| 4 | Assessment of neurocognitive, mental health, sleep disturbances and lifestyle determinants of obesity | CIBER/ |
| IDIBELL |
| 5 | Intervention studies for prevention and early management of obesity | UT |
| 6 | Mechanistic studies and preclinical models for defining early origins and prevention of obesity | ULIEGE |
| 7 | Multi-omics, Bioinformatics and Artificial Intelligence for biomarker identification and obesity prevention | AMARIS-FRANCE |
| 8 | Communication, Dissemination & Exploitation | HIPAT |
| 9 | Project Management & Coordination | CIBER |
