Elements of environmental and socioeconomic sustainability related to the food system: A meta-synthesis

This study aims to understand how the individual elements of the food system relate to sustainability through a meta-synthesis. Changes in food production and consumption in recent decades have had a detrimental effect on human health and the environment. This study helps to explain the existing gap that affects the entire process from food production to the final consumer by discussing the elements that comprise the food system dimensions of a healthy and sustainable diet. The meta-synthesis approach makes it possible to capture elements and their relationship to each other and to generate explanations about theoretical relationships. With this in mind, searches were conducted in the Scopus database, initially selecting 1,362 studies that contained previously selected search descriptors. Subsequently, an exploratory analysis of the titles and abstracts of the articles was conducted, resulting in a set of twenty case studies centered on the topic of interest. After applying inclusion and exclusion criteria, twelve studies remained to make up this meta-synthesis. The elements that emerged from the analytical synthesis of the articles favor or hinder the transition to healthy and sustainable food systems and have an impact on four dimensions: Production, supply, marketing and consumption, as well as on the food system as a whole. As a theoretical contribution, this study explains the elements and stressors of sustainable food systems. As a practical contribution, based on these stressors, action plans can be developed involving different stakeholders and public policies to develop public policies that promote healthy and sustainable diets.