Graphical representation of study design. Solid arrows indicate steps where decisions were made by the researchers, i.e., including Facebook and Instagram rather than other platforms; including Food Industry Brands, Health Organisations, Lifestyle Personalities, and Nutrition Professionals as groups of interest. The top 10 NP profiles were selected by researchers based on criteria specified in the methods. The dashed arrow indicates where the Facebook data collection informed the Instagram profiles. Hollow arrows indicate that the data to the right was collected via Socialbakers©. Dotted arrows indicate the collection via the coding framework.