[Food environment and excess weight in schoolchildren: a South American systematic reviewAmbiente alimentario y exceso de peso en la población escolar: revisión sistemática en América del Sur].

Objective: To identify and compile the findings of observational studies analyzing the relationship of factors from the school food environment and individual factors related to food consumption in school with excess weight in schoolchildren from South America in the period from 2011 to 2021.

Method: The literature review involved a search performed in five databases (PubMed, Web of Science, SciELO, Scopus, and LILACS) and in Google Scholar, as well as a consultation with specialists. Studies were selected if they had an observational design, included schoolchildren aged 5 to 19 years, were performed in South America, and used objective measures such as body mass index (World Health Organization and/or International Obesity Task Force) to assess weight in association with school food environment factors and individual school consumption factors.