Iodine deficiency is prevalent in Europe and, according to the World Health Organization remains the world’s “greatest single cause of preventable brain damage”. Iodine deficiency during brain development has been associated with poor school performance and reduced intellectual capacity. In the UK, deficiency predominantly affects women from adolescence onwards. Join us for a one-day event exploring the significance of iodine in the human diet, the limitations and benefits of food sources such as milk, dairy, fish, and salt, and the strategies available to combat deficiency at both national and global levels. We will examine interventions ranging from biofortification and food processing to policy development and industry engagement. Hear from experts across health, agriculture, and food systems, and gain a clearer understanding of iodine’s importance and the opportunities for supporting healthier, iodine-sufficient populations through research, policy, and practice.