Bundled measures for China’s food system transformation reveal social and environmental co-benefits

Food systems are essential for the achievement of the United Nations Sustainable Development Goals in China. Here, using an integrated assessment modelling framework that considers country-specific pathways and covers 18 indicators, we find that most social and environmental targets for the Chinese food system under current trends are not aligned with the United Nations Agenda 2030. We further quantify the impacts of multiple measures, revealing potential trade-offs in pursuing strategies aimed at public health, environmental sustainability and livelihood improvement in isolation. Among the individual packages of measures, a shift towards healthy diets exhibits the lowest level of trade-offs, leading to improvements in nutrition, health, environment and livelihoods. In contrast, focusing efforts on climate change mitigation and ecological conservation, or promoting faster socioeconomic development alone, have trade-offs between social and environmental outcomes. These trade-offs could be minimized by bundling all three aspects of measures. The effectiveness of the different policies and policy bundles for food systems transformation to achieve SDGs in China vary widely. Using an integrated modelling framework covering 18 indicators, this study compares the trade-offs and outcomes of efforts focused on dietary transitions, climate change mitigation and ecological conservation, and faster socioeconomic development, ultimately revealing that dietary shifts offer the most benefits.