The availability of ultra-processed foods in a municipality tends to be related to different types of food retailers and their location in the territory, besides social, economic, and demographic factors. The aim of this study was to evaluate the availability of ultra-processed foods according to different types of food retailers and sociodemographic factors. This is a cross-sectional observational study carried out with audit data from food retailers in the municipality of Jundiaí, SP. Using a validated instrument, data on the availability of 18 types of ultra-processed foods were used to create a score of ultra-processed foods, ranging from 0 to 100 points, and five subscores referring to the ultra-processed food subgroups. Descriptive statistics and means comparison tests were performed to verify differences in the ultra-processed food availability score, according to the food retail type, household income, number of household members, and percentage of people of the color population in the census tract in which food retailers were located. Geo-referenced maps were used to characterize the score of ultra-processed in the territory, according to sociodemographic variables. A total of 649 food retailers were analyzed, most of which were classified as neighborhood markets (25.4%). The supermarkets were the category with the highest ultra-processed food availability score. Among the subgroups of ultra-processed foods analyzed, candies, soft drinks, and snacks were available in 60% of the food retailers. Higher ultra-processed food availability score was observed in regions with lower income, higher percentage of people of color population, and higher number of members per household. The findings show that the greater availability of ultra-processed foods is related to supermarkets and markets and regions of greater social vulnerability, which can put this population at nutritional risk.

O Estudo do Ambiente Obesogênico (ESAO) foi um projeto de pesquisa realizado pela primeira vez em 2011 no município de São Paulo, com o objetivo de avaliar quantitativa e qualitativamente os determinantes ambientais da alimentação na cidade. Em 2018, acontece a auditoria do ambiente obesogênico no município de Jundiaí. Para realizar o Estudo do Ambiente Obesogênico (ESAO – Jundiaí), foi desenvolvido e validado um instrumento de auditoria de estabelecimentos de comercialização de alimentos para consumo em domicílio, tais como hipermercados, supermercados de grandes redes e locais, pequenos mercados, lojas de conveniência, sacolões, mercados municipais, entre outros. Para aplicação do instrumento de forma correta e confiável, foi desenvolvido esse Manual de modo a servir de apoio aos pesquisadores que desejarem realizar a auditoria em ambiente alimentar para treinamento da equipe de coleta de dados.