I-CAN presents a new playbook offering step-by-step guidance to embedding nutrition-sensitive ambition and action into nationally determined contributions (NDCs). Drawing on I-CAN experience support climate-nutrition integration in different countries, it highlights practical entry points, resources, and provides policy examples to create nutrition–climate win-wins across food systems, health, agriculture, and social protection. By aligning nutrition with climate goals, countries can strengthen food and health systems, advance progress on the SDGs, and pursue the Paris Agreement 1.5 °C target.