Description: Three scenarios entitled Metropolization, Regionalization and Households are based on current competing trends identified in most world regions. Two scenarios entitled Healthy and Communities involve potential breaks that could change the entire land use and food security system. The Healthy scenario is the only one that makes it possible to achieve sustainable world food and nutrition security in 2050. Nevertheless, current trends in agricultural and food systems in most parts of the world converge towards the Metropolization scenario, which is not sustainable in terms of both land use and human health. Therefore, changing the course of ongoing trends in favor of sustainable land uses and healthy food systems will be one of the main challenges of the next decades. It will require systemic transformation, strong and coherent public policies across sectors and scales, and consistent actions from a wide range of actors. (Quae)