Eligibility for the scoping review
| PCC | Inclusion criteria | Exclusion criteria |
| Population | Any human population groups (children or adults; healthy, at risk for chronic diseases or clinical samples) | No human population |
| Concept | Digital nudges or recommender systems (stated in the title, abstract or full-text of a study) | Digital nudges or recommender systems not used or studies that use digital nudges or rely on recommender systems but do not name them in the title, abstract or full-text |
| Context | Any geographical setting Overweight and obesity prevention (eg, nutrition, food recipes, grocery stores, meal preparation, PA promotion, SB prevention) | Digital nudges or recommender systems that are used in for example, blockchain, finances, security, privacy, agriculture, service and e-commerce and not used for overweight and obesity prevention |
PA, physical activity; SB, sedentary behaviour.