Guiding Principles for Translating Evidence on Diet Shift for People in the Real World

There is growing evidence that changing what we eat can improve both human health and the health of the planet. However, much of this evidence does not yet shape real‑world decisions made by policymakers, practitioners, businesses, and communities. This report sets out practical guiding principles to help ensure evidence about healthy and sustainable diets is more useful, visible, and actionable. Developed through research and collaboration with people working across government, public health, the food sector and civil society, the principles reflect how decisions are actually made in complex food systems. A particular focus is placed on local‑level practitioners, who play a key role in turning national ambitions into everyday action. The eight guiding principles encourage joined‑up thinking, involvement of citizens and evidence users, clear and well‑timed communication, and the use of visual and accessible formats. Together, they offer a practical toolkit to help research better support real‑world change towards healthier and more sustainable diets.