Consumer food environments change over a 5-year period.

OBJECTIVE: Evaluate the 5-year changes in the consumers' food environment in the area of a health promotion service in Brazilian primary health care. Our hypothesis is that the consumers' food environment in the areas with primary healthcare services has changes that may favour healthy eating habits over time. DESIGN: Longitudinal study. SETTING: The territory around the primary healthcare services in Belo Horizonte, Minas Gerais, Brazil. PARTICIPANTS: All food stores and open-air food markets that sell fruits and vegetables around the primary healthcare services in 2013 (n 272) and in 2018 (n 265). RESULTS: Fruit diversity increased by 13·4 % (P < 0·001) and vegetables variety and quality by 16·1 % (P = 0·003) and 12·5 % (P < 0·001), respectively. Corn snacks showed an increase in availability (13·5 %; P = 0·002). The increase in advertising was observed for fruits and vegetables (34·6 %; P < 0·001) and ultra-processed foods (47·6 %; P < 0·001). Supermarkets showed an increase in the Healthy Food Store Index (three points; P < 0·001), while fruits and vegetables stores showed a decrease of one point in the index (P < 0·001). CONCLUSIONS: The unequal changes in the consumers' food environment according to the food stores types demonstrate the importance of food supply policies that promote a healthy environment and favour the maintenance of traditional healthy food retailers.

Validation of secondary data sources of the retail food environment in the capital of Uruguay, an emerging Latin American country.

Secondary data sources are frequently used for characterizing physical access to food. Although several studies have reported that they tend to show a moderate agreement with field observation in WEIRD (Western Educated Industrialized Rich and Democratic) countries, little is known about their validity in non-WEIRD countries. The aim of the present research was to assess the validity of secondary data sources of the retail food environment in Montevideo, the capital of Uruguay, an emerging Latin American country. A random sample of 106 census tracts was obtained, covering 12% (62 km2) of the city's total area. Two secondary data sources were considered: administrative records and Google Maps. An aggregate database was created by manually removing duplicates. A total of 1051 unique outlets were listed in the database within the census tracts included in the sample. Field validation was performed by six teams of two observers. A total of 1200 food outlets were identified on the ground, including 463 (38.6%) outlets not listed on any database. On the contrary, 297 outlets listed in the databases (28.3%) were not found or were closed at the time of field validation. At the aggregate level, sensitivity and concordance were moderate (0.614 and 0.487, respectively), whereas positive predictive value was substantial (0.701). However, large heterogeneity in the validity of the database across census tracts was found. Sensitivity, positive predictive value, and concordance were positively associated with the socio-economic status index of the census tract. These results suggest that secondary data sources must be used with caution, particularly for the characterization of areas with low socio-economic status.

Food additives associated with gut dysbiosis in processed and ultra-processed products commercialized in the Uruguayan market.

Recent empirical evidence suggests that gut dysbiosis is one of the negative health outcomes potentially associated with chronic consumption of some food additives. In this context, the present study aimed at analyzing the disclosure of food additives associated with gut dysbiosis in the labels of products commercialized in the Uruguayan market. A cross-sectional survey of packaged products commercialized in nine supermarkets was conducted between August and September 2021. All packaged processed and ultra-processed products available in each data collection site were surveyed using a cellphone app. The information available on the labels was manually extracted and the disclosure of food additives was analyzed using a computer assisted approach. Results showed that 38.1% of the products disclosed at least one food additive associated with gut dysbiosis. Disclosure was most frequent in ice-cream and popsicles, beverages, meat products and analogues, desserts, and fats, oils and fat and oil emulsions. Potassium sorbate was the individual additive associated with gut dysbiosis most frequently disclosed on the labels, followed by mono- and di-glycerides of fatty acid, sucralose, carboxymethylcellulose, acesulphame potassium, carrageenan, and sodium benzoate. These food additives frequently co-occurred and network analysis enabled the identification of patterns of co-occurrence. Taken together, results from the present work suggest the need to conduct additional research to assess the intake of food additives associated with gut dysbiosis at the population level, as well as to evaluate potential synergistic effects of food additives.

Consumption of Food Offered by Delivery Applications (Apps).

This study aimed to investigate whether the use of food delivery applications is related to food consumption practices. METHODS: Data collection was carried out between 5 and 20 June 2020 in a Brazilian capital with a final sample of 2113 individuals. The instrument included questions about socioeconomic characteristics, anthropometric data, and information about eating practices and the use of delivery apps. Logistic regression models were developed with the consumption of each food group as the outcome variable and the use of the application as the exposure variable. RESULTS: Of those interviewed, 78.1% used delivery apps to purchase food. The frequencies of the consumption of foods considered markers of healthy eating were higher for individuals who did not use the applications (59.7% vs. 38.7% for the daily consumption of fresh fruit, respectively, p < 0.0001). The frequencies of the consumption of items considered markers of unhealthy eating were higher for individuals who used apps to purchase food prepared outside the home compared to those who did not (53.7 vs. 38.1 for weekly consumption of hamburgers, respectively, p < 0.0001). CONCLUSION: The use of delivery applications influenced the users' eating practices through the acquisition of food within the digital scope and is related to a greater frequency of the consumption of unhealthy items by users.

Agreement between a web collaborative dataset and an administrative dataset to assess the retail food environment in Mexico.

BACKGROUND: Latin American countries are often limited in the availability of food outlet data. There is a need to use online search engines that allow the identification of food outlets and assess their agreement with field observations. We aimed to assess the agreement in the density of food outlets provided by a web collaborative data (Google) against the density obtained from an administrative registry. We also determined whether the agreement differed by type of food outlet and by area-level socioeconomic deprivation. METHODS: In this cross-sectional study, we analyzed 1,693 census tracts from the municipalities of Hermosillo, Leon, Oaxaca de Juarez, and Tlalpan. The Google service was used to develop a tool for the automatic acquisition of food outlet data. To assess agreement, we compared food outlet densities obtained with Google against those registered in the National Statistical Directory of Economic Units (DENUE). Continuous densities were assessed using Bland-Altman plots and concordance correlation coefficient (CCC), while agreement across tertiles of density was estimated using weighted kappa. RESULTS: The CCC indicated a strong correlation between Google and DENUE in the overall sample (0.75); by food outlet, most of the correlations were from negligible (0.08) to moderate (0.58). The CCC showed a weaker correlation as deprivation increased. Weighted kappa indicated substantial agreement between Google and DENUE across all census tracts (0.64). By type of food outlet, the weighted kappa showed substantial agreement for restaurants (0.69) and specialty food stores (0.68); the agreement was moderate for convenience stores/small food retail stores (0.49) and fair for candy/ice cream stores (0.30). Weighted kappa indicated substantial agreement in low-deprivation areas (0.63); in very high-deprivation areas, the agreement was moderate (0.42). CONCLUSIONS: Google could be useful in assessing fixed food outlet densities as a categorical indicator, especially for some establishments, like specialty food stores and restaurants. The data could also be informative of the availability of fixed food outlets, particularly in less deprived areas.

Transgenerational transmission of eating habits

Abstract Objective To investigate the relationship between the biopsychosocial environment and eating habits and behaviors that lead to the selection and consumption of certain food from the earliest stages of life. To clarify whether there is an interaction between genetic and epigenetic factors, and how they shape eating habits. Data source A narrative review based on research in PubMed and Web of Science electronic databases was carried out over the last 10 years, searching the title and summary fields using the keywords Children OR adolescents Feeding Behavior eating OR Dietary Habits OR Eating Behavior OR Eating Habits OR Children obesity. Data synthesis The generational transmission of eating habits is related to the home, community, and school environments, mainly during the first years of life, and can exert the modulation of habits during all stages of life. During childhood, the family's role in consolidating eating habits is very broad and ranges from choosing foods to prioritizing family meals, including the lifestyle. Conclusions Eating habits are transmitted from parents to children in different ways: environmental, emotional, social, and educational. In cases of obesity, a greater association of genetic influence can be observed.

What North American retail food environment indices miss in Guatemala: Cultural considerations for the study of place and health.

We evaluated the cross-context validity and equivalence of the US- and Canada-originated Retail Food Environment Index (RFEI) and modified RFEI (mRFEI) against a retail food environment dataset from the indigenous-majority city of Quetzaltenango (Xela), Guatemala. The RFEI/mRFEI failed to identify 77% of retailers and misclassified the healthiness of 42% of the remaining retailers in Xela, inaccurately labeling the city a food swamp. The RFEI/mRFEI are not currently suitable for mapping retail food environments in places like Quetzaltenango. Alternative functional and temporal classifications of retail food environments may provide measures with greater contextual fit, highlighting important cultural considerations for the study of place and dietary health.

Social inequities in food deserts and food swamps in a northeastern Brazilian capital.

This study identified food deserts and swamps, investigating their associations with socioeconomic and demographic conditions. This ecological study was conducted using data from urban census tracts in the city of Recife, which were considered the unit of analysis. Information on food retail was obtained from government sources in 2019. Census tracts below the 25th percentile in the density of healthy food retail (i.e., those that predominantly sell natural or minimally processed foods, mixed businesses, and super- and hypermarkets) were classified as food deserts. Census tracts above the 25th percentile in the density of unhealthy food retail (i.e., those selling primarily ultra-processed foods) were considered food swamps. The socioeconomic and demographic conditions of the census tracts were evaluated using variables from the 2010 census (per capita income, average income, race, literacy of the head of household, and the availability of essential services) and the Health Vulnerability Index. Census tracts considered food deserts (28.5%) were more vulnerable, characterized by lower income and access to essential services, more illiterate residents and more minorities (Black/Indigenous/mixed race). Food swamps (73.47%) were more prevalent in less vulnerable neighbourhoods characterized by higher percentages of literate residents and Whites, greater purchasing power, and better basic sanitation. The characteristics of Recife's food deserts and swamps demonstrate social inequalities in the food environment. Public facilities could play a vital role in promoting healthy eating within food deserts. Additionally, future implementation of taxes on ultra-processed foods and the provision of tax subsidies to natural or minimally processed food sellers might contribute to fostering healthier dietary choices.

How are intra-household dynamics, gender roles and time availability related to food access and children's diet quality during the Covid-19 lockdown?

The association between food access and children's diet quality has been documented mainly from its external dimension (e.g., availability, prices, food properties, and marketing). However, existing research has underscored that the external food environment cannot fully account for variations in children's diet quality, even amid the COVID-19 lockdown. It is increasingly evident that elements within the domestic food environment also play a crucial role in shaping this relationship. Specifically, gender roles influence how food is procured and consumed, along with challenges related to time constraints. This study explores the influence of the domestic time-gender axis and household dynamics in food access and children's dietary quality in 14 female-headed households in Santiago, Chile, during the COVID-19 lockdown. Employing a photo-elicitation exercise, we engaged with families residing in the same urban neighborhood but exhibiting varying levels of dietary quality among their children. Our analysis utilized a framework incorporating both socio-ecological food environment and gender theories. Our findings show that within these households, only one unit of "person-time" was available to address all food and caregiving tasks. Due to an unequal gender system, this limited time allocation was disproportionately absorbed by women, who were already burdened with multiple responsibilities. The lack of time favors the consumption of ultra-processed foods and hinders the intake of fresh foods. Other associated intrahousehold dynamics, such as children's fussiness and special diets, accentuates these time scarcity consequences. These difficulties were further exacerbated by strategies adopted in response to the COVID-19 lockdown, however, in families where food-related responsibilities were shared more equitably the lockdown was less disrupting. These results indicate that on top of external food environment policies, comprehensive gender-transformative policies that include food socialization processes are needed to promote healthier diets among all.

Caracterización del entorno alimentario de una universidad en Medellín, Colombia: retos para la promoción de una alimentación saludable

La obesidad se ha convertido en una de las mayores problemáticas de salud pública a nivel mundial, y Colombia no es ajena a esta situación. El entorno universitario constituye un escenario clave para el abordaje de esta problemática. Objetivo: Caracterizar el entorno alimentario de una universidad en Medellín, Colombia. Materiales y métodos: Se realizó un estudio descriptivo transversal mediante la observación directa y registro en formularios estructurados de todos los establecimientos de venta de alimentos. Se consideraron las siguientes variables: oferta de alimentos, precio, publicidad, facilitadores y barreras. Resultados: Ningún establecimiento se clasificó como saludable. En el 76% de los establecimientos, los paquetes o promociones eran más económicos. En el 62% de los establecimientos se observó que los platos saludables eran más costosos. Solo en dos establecimientos se observó publicidad directa para fomentar una alimentación saludable. Se ofrecían principalmente productos ultraprocesados (53%). Conclusión: los resultados del estudio muestran en general un panorama de un entorno alimentario poco saludable. Este diagnóstico se configura como un insumo importante para la toma de decisiones al interior de la institución para mejorar y promover una alimentación más saludable que permita disminuir el riesgo de desarrollar enfermedades crónicas en la comunidad universitaria.

Nowadays, obesity has become one of the biggest public health challenges worldwide. This scenario includes Colombia as well. Against this background, the university environment constitutes a key scenario for addressing this situation. Research Objective: To characterize the food environment of a university in Medellín, Colombia. Materials and methods: A cross-sectional descriptive study was carried out through direct observation. Additionally, it was used structured forms for recording the data of the food establishments. The research considers the following variables: food supply, prices, advertising, facilitators and barriers. Results: No establishment was classified as healthy. In 76% of the establishments, the food-sets or promotions were cheaper. In 62% of the places under inspection, the healthy dishes were more expensive. Only in two establishments there was direct advertising that promoted healthy eating. In general, mainly ultra-processed edible products (53%) were offered. Conclusion: The results of the study generally paint a picture of an unhealthy food environment. This diagnosis is configured as an important input for decision-making within the institution to improve and promote a healthier diet that reduces the risk of developing chronic diseases in the university community.

Food and Consumers' Environment Inside and around Federal Public Schools in Bahia, Brazil.

The food environment plays a crucial role in shaping people's eating habits and, in and around schools, this influence becomes even more critical due to the time students spend daily in these spaces. This study aimed to analyze the food and consumer environments inside and around federal institutes in Bahia, Brazil. Ecological study and audit methodologies were combined, with all the 35 federal institutes in Bahia as the sample universe. To delimit the food environment around the school, the establishments were mapped in a 1000 m buffer, with the school as the centroid. The geographic coordinates of schools and food outlets were initially obtained using Google Maps and later confirmed on-site. The data were collected in WGS 84 and converted to UTM zone 23S SIRGAS 2000. To map the consumer environment, establishments found in a 250 m buffer and also canteens within schools were audited, using the ESAO-r instrument that considers the availability and prices of healthy and unhealthy foods; availability of nutritional information near the point of purchase or on the menu; and presence of internal marketing of healthy and unhealthy foods. The healthy meal-restaurant index (HMRI) was also measured. This index ranges from 0 to 8 points and positively scores items related to healthy consumption and fails to score those related to unhealthy consumption and behavior. The establishments were grouped into four categories (healthy, unhealthy, mixed, and supermarkets). The surrounding area with four or more unhealthy establishments within the 250 m buffer was considered a food swamp. Descriptive analyses were carried out with frequency measurements, measures of central tendency (mean and median), and dispersion (standard deviation). Around the analyzed schools, 732 food establishments were identified, 73.8% (n = 540) formal and 26.2% (n = 192) informal. Considering the characteristics of existing commerce, there was a predominance of snack bars (45%), grocery stores (23%), and bars (7.8%), with a smaller number of supermarkets identified (4.1%). School canteens were found in 20 schools analyzed and only 15% had a variety of healthy foods. When evaluating the availability of healthy foods, a median HMRI of 3 (1-7) was observed. When analyzing this index according to the type of establishment, it was found that fruit and vegetables presented higher values (HMRI = 7; P25-P75: 4-8) compared to large chain supermarkets (HMRI = 5; P25-P75: 2-6; p < 0.001) and local markets (HMRI = 4; P25-P75: 2-5; p < 0.001). From the analysis of the food and consumer environments, it was possible to make inferences about the quality of the food offered to students in these locations, as well as the potential health outcomes arising from this exposure and the need to carry out food education activities and nutritional activities.

Transgenerational transmission of eating habits.

OBJECTIVE: To investigate the relationship between the biopsychosocial environment and eating habits and behaviors that lead to the selection and consumption of certain food from the earliest stages of life. To clarify whether there is an interaction between genetic and epigenetic factors, and how they shape eating habits. DATA SOURCE: A narrative review based on research in PubMed and Web of Science electronic databases was carried out over the last 10 years, searching the title and summary fields using the keywords Children OR adolescents Feeding Behavior eating OR Dietary Habits OR Eating Behavior OR Eating Habits OR Children obesity. DATA SYNTHESIS: The generational transmission of eating habits is related to the home, community, and school environments, mainly during the first years of life, and can exert the modulation of habits during all stages of life. During childhood, the family's role in consolidating eating habits is very broad and ranges from choosing foods to prioritizing family meals, including the lifestyle. CONCLUSIONS: Eating habits are transmitted from parents to children in different ways: environmental, emotional, social, and educational. In cases of obesity, a greater association of genetic influence can be observed.

A longitudinal analysis of the fluctuation of food stores in Belo Horizonte, Minas Gerais, Brazil.

BACKGROUND: Changes in food environments have the potential to affect consumption, nutritional status, and health, and understanding these changes is of utmost importance. This study, therefore, aimed to examine the fluctuation of food stores that sell fruits and vegetables over five years in the health promotion service area of Primary Health Care (PHC) in Belo Horizonte, Minas Gerais, Brazil. METHODS: This was an ecological study that used data from a food environment audit conducted in the realm of Brazilian PHC. Buffers of 1 mile (equivalent to 1600 m) were created around health promotion services to define food environments. All food stores and open-air food markets that sold fruits and vegetables (FV) within this buffer area were considered eligible. The data collection was performed during two periods: the baseline, in 2013, and after five years, in 2018. This study compares the fluctuation by the type of stores and according to the health vulnerability index (HVI). RESULTS: After 5 years, 35.2% of the stores were stable; 154 stores were closed, and 155 were opened. The stability was greater in low-vulnerability areas, and the fluctuation differed by type of store only for areas with high vulnerability. The number of supermarket decreased in high HVI territories; and local stores, showed greater stability when compared to specialized FV markets. CONCLUSIONS: The differences in store fluctuations according to the vulnerability of areas demonstrate the importance of food supply policies considering the local characteristics to reduce inequities of access to healthy foods.

Do Brazilian regulatory measures promote sustainable and healthy eating in the school food environment?

BACKGROUND: Regulatory measures regarding food in the school environment aim to promote a healthier food environment in public and private schools. In Brazil, implementing regulations in the school food environment does not occur the same way across states and cities, and no national regulation covers public and private schools. The present study aims to analyze regulatory measures for school food environments in Brazilian states and cities and develop a score to evaluate them. METHODS: A systematic search of the regulatory measures in force and implemented until 2021 was conducted. The score was developed based on the Model Law Project prepared by the Brazilian Institute for Consumer Protection. It considered food and nutrition education actions, restrictions on the sale and distribution of food, a ban or restriction on food advertising and marketing, and points of excellence. These points included regulations that addressed the importance of supervision and social control, laws regulated by decree, the mention of a ban on ultra-processed foods, and whether the regulatory measures covered public and private schools. RESULTS: Sixty-five cities and states regulatory measures in force were found to be evaluated jointly by a federal entity (n = 43). Among the federal entities evaluated, only 13.95% fulfilled the function of promoting sustainable and healthy eating (8-12 points). CONCLUSIONS: Brazilian children and adolescents are exposed to a school food environment with regulations that partially fulfill the function of promoting an adequate, healthy, and sustainable diet. In this sense, it is necessary to improve regulatory measures or to encourage states and cities to develop effective legal provisions that are in line with the food guide for the Brazilian population and with the perspective of a healthy school food environment for the effective promotion of adequate, healthy and sustainable and healthy food in schools.

Obesogenic neighborhood environment is associated with body fat and low-grade inflammation in Brazilian children: could the mother's BMI be a mediating factor?

OBJECTIVE: To evaluate the direct and indirect associations of obesogenic and leptogenic neighborhood environments with body fat, and pro- and anti-inflammatory adipokines in Brazilian children. DESIGN: Cross-sectional study. The body fat distribution was assessed using dual-energy X-ray absorptiometry (DXA). Concentrations of leptin and adiponectin were measured. Four hundred meters (0·25 miles) road network buffer was the neighborhood unit used to assess the environmental characteristics around households. Obesogenic and leptogenic environments were the latent variables obtained from the observed characteristics. The mother's BMI, ultra-processed food consumption, and physical activity before and after school, were tested as mediating variables. A hybrid model of structural equations was used to test the direct and indirect associations of obesogenic and leptogenic environments with body fat, leptin and adiponectin concentrations. SETTING: Urban area of Viçosa, Minas Gerais, Brazil. PARTICIPANTS: Children aged 8- and 9-years (n 367). RESULTS: Obesogenic environment was directly associated with the mother's BMI (ß: 0·24, P = 0·02) and the child's body fat (ß: 0·19, P = 0·02). The mother's BMI and body fat mediated the association of the obesogenic environment with leptin concentrations (ß: 0·05, P = 0·02). CONCLUSIONS: Obesogenic neighborhood environment was directly associated with body fat and mother's BMI, and indirectly associated with leptin concentrations in Brazilian children, mediated by the mother's BMI and body fat.

Food and nutrition public establishments: assessment of the food environment / Equipamentos públicos de segurança alimentar e nutricional: avaliação do ambiente alimentar

Abstract This article aims to assess the community food environment around areas with and without Food and Nutrition Public Establishments (FNPE). Cross-sectional study carried out in Belo Horizonte, Brazil. The unit of analysis was the buffer (500m) around the FNPE and the census tracts without FNPE. The investigated establishments should market food for consumption at home and be located within the buffer of the areas with and without FNPE. Data collection performed by direct observation (active search) in August to October 2019. Data collected were location and type of commercial establishments, the density of the establishments was calculated. Descriptive analysis, spatial distribution (Kernel estimator) and Nearest Neighbor analysis were performed. Of the evaluated establishments, 60.5% were in the areas without FNPE and 39.6% in the areas with FNPE, showing a random distribution pattern. Of these, 24.2% were convenience stores and bakeries, 21.0% butcher stores, and 19.0% street markets. Seven FNPE were close to commercial establishments. There were fewer establishments around the FNPE, with convenience stores and bakeries predominating.

Resumo O objetivo deste artigo é avaliar o ambiente alimentar comunitário de áreas com e sem estabelecimentos públicos de segurança alimentar e nutricional (EPSAN). Estudo transversal realizado em Belo Horizonte, Brasil. Unidade de análise foi o buffer (500m) no entorno dos EPSAN e dos setores censitários sem EPSAN. Os estabelecimentos investigados deveriam comercializar alimentos para consumo no domicílio e localizar-se dentro do buffer das áreas com e sem EPSAN. Coleta de dados realizada por observação direta (busca ativa) de agosto a outubro de 2019. Os dados coletados foram localização e tipo dos estabelecimentos comerciais, e também foi calculada a densidade dos estabelecimentos. Foram feitas análise descritiva, distribuição espacial (estimador de Kernel) e análise do vizinho mais próximo. Dos estabelecimentos avaliados, 60,5% estavam nas áreas sem EPSAN, e 39,6% nas áreas com EPSAN, apresentando padrão de distribuição aleatório. Desses, 24,2% eram lojas de conveniência e padarias, 21,0% açougues e 19,0% feiras-livres. Sete EPSAN encontravam-se próximos aos estabelecimentos comerciais. Havia menor número de estabelecimentos no entorno dos EPSAN, com predominância de lojas de conveniência e padaria.

Private school canteens: an analysis of the economic and financial aspects of the traditional and the healthy models.

BACKGROUND: One of the reasons for the more prominent resistance of canteen managers to implementing healthy canteens is based on the belief in the economic infeasibility of these models. The research aimed to verify the economic and financial viability of traditional and healthy models of school canteens in a Brazilian metropolis. METHODS: The case study was carried out with 36 companies in the school canteen sector in a Brazilian metropolis. The classification of items sold in canteens considered the extent and purpose of food processing according to the NOVA Classification. The characterization and definition of traditional canteens and healthy canteens were proposed considering the amount of in natura or minimally processed foods and culinary preparations without the presence of ultra-processed foods; the percentage of ultra-processed foods or processed foods or culinary preparations with the presence of ultra-processed foods; and the existence of prohibited foods. The economic and financial analysis was carried out mainly through the evaluation of profitability. Data were collected through an electronic self-administered questionnaire sent to canteen managers. The Mann-Whitney test was used to compare medians and the Chi-Square/Fisher's Exact Test to compare proportions. RESULTS: The study included six companies, responsible for 36 canteen units in private schools, 30 classified in the traditional model (83.3%), and six in the healthy model (16.7%). The median percentage of natural, minimally processed foods and commercialized culinary preparations was higher among the healthy model canteens (87.9% vs. 60.0%, p < 0.001). While the median percentage of ultra-processed, processed, or preparations with the presence of ultra-processed (40.0% vs. 12.1%, p < 0.001) and prohibited foods (10.0% vs. 0%, p < 0.001) sold was higher in the traditional model canteens. The results indicated that the profitability in the healthy canteens was higher (p < 0.001) than in the traditional ones. CONCLUSIONS: Healthy school canteens showed better financial and economic results compared to traditional canteens with emphasis on greater profitability and a shorter recovery time of the initial investment.

An Entropy-Based Approach to Measuring Diet Adherence.

The aim of this study is to put forward an approach designed to calculate and sum up discrepancies between the actual food acquisition or intake and any standard or norm. Based on secondary analysis of cross-sectional data from the Mexican National Survey of Household Income and Expenditure, our proposed method to produce classes of entropy-based Diet Adherence Indices generates a Food Basket Adherence Index (FBAI) for Mexico City (2129 households). Findings suggest that it is possible to measure and decompose diet adherence using a cross entropy measure. Using food expenditure data and a normative food basket for Mexico City results, we show households' deviations from the suggested norm for different food groups. The average FBAI was 0.44, far above the minimum score of 0 which would indicate full adherence to the normative food basket. Our measure has a distribution wide enough to detect meaningful changes and distinguish between groups with known differences, providing important new insights on the linkages between home food environments and income distribution, and food insecurity and household distribution.

Association between food environments and fetal growth in pregnant Brazilian women.

INTRODUCTION: Birth weight is described as one of the main determinants of newborns' chances of survival. Among the associated causes, or risk factors, the mother's nutritional status strongly influences fetal growth and birth weight outcomes of the concept. This study evaluates the association between food deserts, small for gestational age (SGA), large for gestational age (LGA) and low birth weight (LBW) newborns. DESIGN: This is a cross-sectional population study, resulting from individual data from the Live Birth Information System (SINASC), and commune data from mapping food deserts (CAISAN) in Brazil. The newborn's size was defined as follows: appropriate for gestational age (between 10 and 90th percentile), SGA (< 10th percentile), LGA (> 90th percentile), and low birth weight < 2,500 g. To characterize food environments, we used tertiles of the density of establishments which sell in natura and ultra-processed foods. Logistic regression modeling was conducted to investigate the associations of interest. RESULTS: We analyzed 2,632,314 live births in Brazil in 2016, after appropriate adjustments, women living in municipalities with limited availability of fresh foods had a higher chance of having newborns with SGA [OR2nd tertile: 1.06 (1.05-1.07)] and LBW [OR2nd tertile: 1.11 (1.09-1.12)]. Conversely, municipalities with greater availability of ultra-processed foods had a higher chance of having newborns with SGA [OR3rd tertile: 1.04 (1.02-1.06)] and LBW [OR2nd tertile: 1.13 (1.11-1.16)]. Stratification by race showed that Black and Mixed/Brown women had a higher chance of having newborns with SGA [OR3rd tertile: 1.09 (1.01-1.18)] and [OR3rd tertile: 1.06 (1.04-1.09)], respectively, while Mixed-race women also had a higher chance of having newborns with LBW [OR3rd tertile: 1.17 (1.14-1.20)]. Indigenous women were associated with LGA [OR3rd tertile: 1.20 (1.01-1.45)]. CONCLUSION: The study found that living in areas with limited access to healthy foods was associated with an increased risk of SGA and low birth weight among newborns, particularly among Black and Mixed/Brown women. Therefore, urgent initiatives aimed at reducing social inequalities and mitigating the impact of poor food environments are needed in Brazil.