The Diet Impact Assessment model: a tool for analyzing the health, environmental and affordability implications of dietary change

Overview

This manual describes the Diet Impact Assessment (‎DIA)‎ model – a new interactive modelling tool for analysing the health, environmental and affordability implications of diets and dietary change. The tool enables countries to analyse user-specific scenarios of dietary change, and to estimate the health, environmental and cost burden of each scenario in terms of diet costs, avoidable deaths, changes in resource use and compatibility with global environmental targets, including those associated with food-related greenhouse gas emissions, land use, water use and fertilizer application. The tool was commissioned by the WHO Regional Office for Europe and is based on analytical frameworks developed by Marco Springmann and colleagues. This manual outlines use of the tool and its scientific basis.