The use of social media in nutrition interventions for adolescents and young adults - A systematic review.

•Social media is a promising feature for nutrition interventions for adolescents and young adults.•16 studies included social media in a nutrition intervention for these age groups; a majority had at least one significant outcome.•Intervention features included: social media; communication; tracking health; education; tailoring; social support; and gamification.•Most studies utilized basic social media features and did not evaluate the efficacy of social media individually.