| BMI | Body Mass Index |
| COSI | Childhood Obesity Surveillance Initiative |
| CREA | Centro di Ricerca Alimenti e Nutrizione |
| CVD | Cardiovascular disease |
| KIDMED | Mediterranean Diet Quality Index for children and adolescents |
| IMN | Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IMN) |
| LIVELY | MuLtidimensional school-based and family Involved interVentions, to promote a hEalthy and sustainable LifestYle for the childhood obesity primary prevention |
| LDNC | Laboratory of Dietetics and Clinical Nutrition |
| MD | Mediterranean Diet |
| NCDs | Non communicable diseases |
| SD | Standard deviation |
| WC | Waist circumference |
| WHO | World Health Organization |
| WHtR | Waist-to-height ratio |
| UNESCO | United Nations Educational, Scientific and Cultural Organization |