Food systems require fundamental transformation to promote sustainable healthy diets for all, and must focus on food availability, accessibility, affordability, and desirability. While much focus is on low- and middle-income countries (LMIC), high-income countries also have a vital role, particularly when their decisions affect LMICs. Policies must make sustainable, nutrient-rich, and staple goods available to all, ensure value chains improve accessibility and lower costs, and empower consumers to make informed choices to increase demand for healthy, sustainable diets.