Food insecurity violates the right to regular access to quality food, affecting population groups unequally. In Brazil, FI is associated with both malnutrition and increased obesity and is intertwined with racial and gender inequalities, perpetuating cycles of poverty and social exclusion. This protocol aims to select observational studies that evaluate the association between food insecurity and overweight and their intersectional discussions (gender and race/color). The PRISMA checklist guidelines will be applied, and the PROSPERO platform will be used for registration. Searched in the Virtual Health Library (Lilacs-BVS), Medline PubMed, Web of Science, and Embase Elsevier databases. The stages of article selection and information extraction will be carried out by independent researchers who will identify articles that meet the established inclusion criteria, removing duplicate publications and excluding those that do not meet the requirements. The quality of eligible articles will be assessed using the Quality Assessment Tool For Quantitative Studies (QATFQS), which is recommended for observational studies. This study is not needed for ethical approval, as it is a systematic review based on secondary data. They will disseminate their conclusions from the original articles. PROSPERO registration number: CRD42023427239.
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