When it comes to reducing obesity, evidence shows that changing food environments is more effective than measures that try to educate or change the behaviour of individuals. The interventions that participants consider to be most acceptable are the same as those that they perceived to be most effective at tackling obesity. However, the interventions that were reported to be least effective and least acceptable — such as reducing portion sizes and the taxation of unhealthy foods — may actually have the greatest potential for promoting healthy eating at the population level. While we must be cautious with how we interpret correlations like this, it suggests that addressing the disconnect between the evidence base and public understanding may be a viable way of influencing public acceptability