Benito Ostolaza, Juan MiguelEchavarri, RebecaGarcía Prado, AriadnaOsés Eraso, Nuria2021-09-062024-02-0120210277-953610.1016/j.socscimed.2020.113587https://academica-e.unavarra.es/handle/2454/40424Most interventions against obesity use information to persuade people to change their behavior, with moderate results. Because eating involves automatic routines, new approaches have emerged appealing to non-reflective cognitive processes. Through a randomized controlled trial, we evaluated the impact of visual stimuli (positive and negative) on children's snack-choices at school. Results showed that the negative stimulus had no effect, while the positive stimulus increased the probability among girls of choosing a healthy snack. We also found that children with excess weight had a larger baseline probability of choosing the healthy snack than those without. We conclude that happy emojis, used to nudge non-reflective processes, can steer children towards healthy choices.39 p.application/pdfeng© 2020 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0Child obesityRandomized controlled trialVisual stimuliinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess