Not having enough money to buy food—known as food insecurity—is a serious issue, affecting over one in ten households in the UK during 2022/23. This struggle impacts both physical and mental health. New findings suggest that food insecurity is also linked to eating disorders. Adults who experience food insecurity are more likely to show symptoms of disordered eating, including behaviors like binge eating, restrictive eating, and compensatory behaviours (e.g., meal skipin, dieting). These patterns have been observed across various groups, including adults, teenagers, students, and people in treatment for eating disorders. This evidence highlights the need to consider food insecurity as a critical risk and/or maintenance factor for eating disorders. Yet, most research has focused on the USA despite the similar prevalence of food insecurity households in the UK. However, findings from the USA may not directly translate to the UK due to cultural and welfare differences (e.g., the US offers monthly food benefits, while UK food bank access varies regionally and by policy). Our study will use data from the UK to explore how food insecurity and eating disorders are associated among adults in the general population.