A narrative review of social media interventions aimed at reducing food waste in tourism and hospitality

Despite the fact that food waste in tourism is significant, research into the development of effective social media interventions to address this issue, is lacking. This study provides a comprehensive narrative review of the social media interventions that have been used to reduce food waste. Three intervention types were identified: (1) antecedent (social norm, social support, and awareness), (2) moderator (platform nudge, sharing, and identity), and (3) consequence (gamification and feedback). By establishing a novel social media intervention framework, this study advances tourism and hospitality knowledge relating to the causes and impacts of social media interventions on reducing food waste. It provides important insights on ways that social media interventions can be used to leverage environmental sustainability in tourism. This study calls for future research that can more effectively and accurately measure the impact of social media interventions.