I tweet, they follow, you eat: Number of followers as nudge on social media to eat more healthily.

Abstract

• Consumption of healthy food in social settings is inhibited by its low social value. • Nudges that rely on social factors (social nudges) may improve this social value. • High numbers of followers on social media accounts are effective social nudges. • High numbers of followers increase social value, hence consumption of healthy food. • Influence of Presumed Influence explains the effectiveness of this social nudge.