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The lesser-grison (Galictis cuja) is a mustelid native to South America with an wide, but its diet remains poorly understood. The present study combines published data with new information on the diet of G. cuja from the semiarid Caatinga ecoregion, based on the analysis of the stomach contents of two road-killed specimens. Sixteen studies, conducted in Argentina, Brazil, Chile, and Uruguay, were reviewed, permitting the identification of seven dietary categories: Invertebrates, Mammals, Birds, Reptiles, Amphibians, Fish, and Plant Material. Mammals and birds were the items consumed most frequently, while amphibians and fish were the least common items. The novel items identified in the Caatinga sample included the white-eared opossum (Didelphis albiventris), white tegu eggs (Salvator merianae), and melon seeds (Cucumis melo L.). The data indicate that G. cuja has a diverse diet, with mammals present in 100% of the diets analyzed, reflecting the role of the species as a mesopredator and potential seed disperser. The lack of data from a number of different ecoregions highlights the need for further research to better understand the ecological role of the species, and to develop effective conservation strategies, given that the current knowledge on the diet of G. cuja may not best represent its ecological importance and the challenges faced by the species in impacted environments.

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The purpose of this study was to assess the fermentative characteristics of total mixed ration silage (TMR) based on cactus pear and cottonseed cake and its effect on the productive performance and ingestive behaviour of lambs in feedlot. The study was divided into two experimental trials. The first experimental trial evaluated the fermentative quality of the total mixed ration silages, in five replications per treatment, and the second evaluated the productive performance and ingestive behaviour of lambs, in eight replications per treatment, with the treatments being represented by the proportion of cottonseed cake in the TMR (0; 20; 25 and 30% cottonseed cake on dry matter basis). Significant treatment effects (P < 0.05) were observed on yeast population, pH, gas losses, effluent losses, dry matter recovery, ether extract intake, digestibility of dry matter, organic matter, crude protein, ether extract, neutral detergent fiber and non-fiber carbohydrates, and on all ingestive behaviour variables except for those of feeding. Thus, cactus pear ensures the fermentative and hygienic quality of total mixed ration silages, regardless of the proportions of cottonseed cake. Therefore, based on the productive performance and ingestive behaviour of feedlot finished Dorper lambs, it is recommended the use total mixed ration silages with 30% cottonseed cake.

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OBJECTIVE: To investigate the sociodemographic, maternal, and gestational factors associated with the dietary total antioxidant capacity in pregnant Brazilian women. METHODS: A cross-sectional study with 2,232 pregnant women aged 18 years old or older, in the first, second, and third trimesters of pregnancy, from eleven cities in the five Brazilian regions. A semi-structured questionnaire was applied to assess socioeconomic, demographic, and health data, and a 24-hour dietary recall (R24h) was used to assess food consumption and analyze the dietary total antioxidant capacity (DTAC), estimated using the ferric reducing antioxidant power (FRAP) method. RESULTS: The median of DTAC was 5.32 mmol/day. Aracaju, Sergipe (SE) had the highest median of DTAC (6.44 mmol/day) and Palmas, Tocantins (TO) had the lowest (4.71 mmol/day). Pregnant women aged 20 to 34 years (OR 1.86; 95%CI 1.26-2.76), 35 years old or older (OR 3.68; 95%CI 2.21-6.14) and who were in the second trimester of pregnancy (OR 1.50; 95%CI 1.11-2.01) were more likely to be above the median DTAC. While pregnant women with higher education had a 67% lower chance of being above the median DTAC (OR 0.67; 95%CI 0.48-0.92). CONCLUSION: The study demonstrated that there are differences in antioxidant consumption in different cities in Brazil and that associated factors such as age, education, and gestational trimester can impact the intake of foods rich in antioxidants. The profile found draws attention to the importance of an adequate diet rich in antioxidants during prenatal care.

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Adequate fruit and vegetable consumption is recognized for its health benefits, including preventing noncommunicable diseases, therefore it should be monitored over the years. This study aimed to investigate the temporal trend of fruit and vegetable consumption among Brazilian adults (≥ 18 years) residing in 26 Brazilian capitals and the Federal District from 2008-2023. A time-series analysis of the Surveillance of Risk and Protective Factors for Chronic Diseases by Telephone Survey (Vigitel) was conducted. Regular (≥ 5 days/week) and recommended (≥ 5 servings/day on ≥ 5 days/week) fruit and vegetable consumption were analyzed for total population and sociodemographic groups. Prais-Winsten regression models were used to identify trends in the entire (2008-2023), initial (2008-2014) and most recent (2015-2023) periods. Regular and recommended consumption remained stable from 2008 to 2023. From 2008 to 2014, regular consumption increased in total population (0.71pp/year) and all sociodemographic groups, except for adults aged 25-34 years. From 2015 to 2023, regular consumption decreased in the total population (-0.56pp/year), mainly among men (-0.70pp/year), adults aged 25-34 years (-0.84pp/year), and with higher schooling (-0.96pp/year). The recommended consumption increased from 2008 to 2014 (0.81pp/year), mainly among women (0.90pp/year), adults aged 55-64 years (0.96pp/year), and those with higher schooling (0.77pp/year). The recommended consumption decreased from 2015 to 2023 in total population (-0.52pp/year) and all sociodemographic groups, except for men and adults aged ≥ 65 years. The Brazilian fruit and vegetable consumption increased from 2008 to 2014 but reduced recently (2015-2023).

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This study evaluated the performance, muscle metabolites, and beef quality of Nellore cull cows subjected to different finishing feeding durations. Twenty Nellore cows (initial body weight of 477.4 ± 49.6 kg) were randomly assigned to the three treatments: six as the control group (D0), seven finishing-fed for 28 d (D28), and seven finishing-fed for 56 d (D56). Parameters including dry matter intake, shrunk body weight, empty body weight (EBW), hot carcass weight (HCW), carcass shrinkage, muscle metabolites, and meat quality parameters in different aging times (0AT, 7AT, and 14AT) were assessed. Cull cows subjected to D28 and D56 treatments had greater EBW (P < 0.001) than D0. However, greater HCW (P = 0.004) and back fat thickness (P = 0.005) were detected in only D56 treatment compared to D0 and D28 treatments. As a result, the carcass pH was lower in the D56 treatment (P = 0.002) compared to D0 and D28 treatments. The Longissimus lumborum muscle of cull cows finished for 28 and 56 d showed a higher concentration of sugars (glucose-6-phosphate and fructose-6-phosphate), glycerol, and amino acids (leucine, alanine, isoleucine, valine, and aspartate). In conclusion, as the finishing period and aging time increased, there was a corresponding improvement in fat content and meat tenderness, respectively.

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BACKGROUND AND AIMS: The first years of life are fundamental for the establishment of the gut microbiota, with diet being one of the main early exposures. During this period, the beneficial effect of breastfeeding on modulating the gut microbiota is well known; however, there are important gaps in the literature on the effects of ultra-processed food (UPF) consumption, particularly in longitudinal and large sample designs. Through a prospective birth cohort study, we investigated the effects of UPF consumption on the gut microbiota of children during the first year of life. METHODS: This study included children from the MINA-Brazil birth cohort with gut microbiota data (16S rRNA) available at the 1-year follow-up (n = 728). Data on breastfeeding practices were collected after childbirth and during follow-up visits. Complementary feeding was measured using a semi-structured questionnaire, referring to the day before the interview at the 1-year follow-up. A combined variable was generated according to breastfeeding practices and UPF consumption and was used as an independent variable in the adjusted median regression models, with alpha diversity parameters as the dependent variable. Beta diversity was analyzed using PERMANOVA according to Bray-Curtis dissimilarity and Distance-based Redundancy Analysis (db-RDA) adjusted for covariates. Relative abundance was analyzed using ANCOM-BC (corrected by FDR) and MaAsLin2 adjusted for covariates. RESULTS: Weaned children who consumed UPF showed a significant increase in alpha diversity for all parameters in the median regression models (Observed ASVs: p = 0.005; Shannon index: p = 0.036; Chao index: p = 0.026; Simpson index: p = 0.012) and in beta diversity (PERMANOVA: p = 0.006; db-RDA: p < 0.001) compared to breastfed children who did not consume UPF. Breastfed children who did not consume UPF had a higher relative abundance of Bifidobacterium than weaned children who consumed UPF (both p < 0.001 for ANCOM-BC and MaAsLin2) and a lower relative abundance of Firmicutes (p < 0.001 for MaAsLin2), Blautia (both p < 0.001 for ANCOM-BC and MaAsLin2), Sellimonas (p = 0.008 for ANCOM-BC) and Finegoldia (p = 0.045 for MaAsLin2) than weaned children who consumed UPF. CONCLUSION: These findings suggest that UPF consumption may negatively impact the diversity and abundance of the gut microbiota, with a more pronounced effect in children who have already been weaned.

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PURPOSE: A vegan diet is associated with health benefits but may also lead to inadequate intake of essential nutrients. Due to the lower selenium content in plant-based compared to animal-based foods, many vegans do not reach the recommended selenium intake in Europe. The only plant-based food with high selenium content is the Brazil nut, even though there is also a high variability. Therefore, we investigated the effectiveness of Brazil nut butter compared to a dietary supplement as selenium source to improve the selenium status of vegans and omnivores. METHODS: 44 vegans and 42 omnivores were randomly assigned to one of three intervention groups, either receiving placebo or consuming additional 55 µg of selenium daily as Brazil nut butter or supplement for two weeks. Serum selenium concentrations, glutathione peroxidase 3 (GPX3), and selenoprotein P (SELENOP) were measured at baseline and after intervention. Additionally, dietary selenium intake was estimated using a five-day dietary protocol. RESULTS: The estimated selenium intake was significantly lower in vegans compared to omnivores and correlated with all three selenium biomarkers. Independent of the dietary pattern (vegan or omnivore), Brazil nut butter as well as supplement significantly increased serum selenium and SELENOP concentrations, while there were no changes in the placebo groups. Both interventions were equally effective in increasing selenium levels, but the upregulation of SELENOP was more pronounced in vegans than in omnivores. CONCLUSION: Brazil nuts are a plant-based source of selenium suitable for vegans and omnivores to improve their selenium status when consumed once in a while. TRIAL REGISTRATION NUMBER AND DATE OF REGISTRATION: Clinical trials registration number: NCT05814874, April 18 2023.

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BACKGROUND: Adequate dietary intake is critical for healthy pregnancies. Recent changes in social services in Mexico, coupled with high levels of food insecurity, call into question whether expecting women of the lowest socioeconomic status are able to meet their dietary and nutritional needs in this changing context. The aim of this study was to explore the nutritional practices, education and received and employed among women during their pregnancy. METHODS: Guided by Ecological Systems Theory and an Intersectionality Framework, this qualitative study was carried out in Oaxaca City and Puerto Escondido, in Oaxaca, a Mexican state with high levels of food insecurity. Women who had at least one child in the past five years and had lived in Oaxaca for the past five years were eligible to participate. Twenty-five women participated in semi-structured in-depth interviews conducted between June and December of 2023. A grounded theory approach was used for coding. NVivo was used for coding and analyses. RESULTS: Five key themes emerged linked to individual-level characteristics and the multiple social identities related to the social support for nutritional knowledge and practices among low-income Oaxacan women during pregnancy: (1) Life experiences, sociodemographic, and health characteristics that influence nutritional practices and knowledge during pregnancy; (2) Female family members as a primary source of nutritional knowledge and food support; (3) Support from other members of women's social networks; (4) Medical guidance for nutrition during pregnancy; and (5) Quality and gaps in the broader health care system and social services. These themes highlight how women's own experiences and social identities and the different interpersonal and community-level environments, particularly those of mothers and grandmothers and health care providers, interact and shape women's nutritional knowledge and practices, such as foods and nutritional supplements consumed, during pregnancy. CONCLUSION: Nutritional knowledge and practices during pregnancy are impacted by multiple social identities women have and different factors at the individual, group, and structural level. Future multi-level approaches in research and programming that take into consideration the individual, family members, and other social influences are needed to address the gaps in nutrition that women in Oaxaca go through during the prenatal period.

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This cross-sectional ecological study described fruit and vegetable (F&V) intake variability across 144 cities in 8 Latin American countries and by city-level contextual variables. Data sources came from health surveys and census data (Argentina, Brazil, Chile, Colombia, El Salvador, Guatemala, Mexico, and Peru). Self-reported frequency of F&V intake was harmonised across surveys. Daily F&V intake was considered as consumption 7 d of the week. Using a mixed-effects model, we estimated age and sex-standardised city prevalences of daily F&V intake. Through Kruskal-Wallis tests, we compared city F&V daily intake prevalence by tertiles of city variables related to women's empowerment, socio-economics, and climate zones. The median prevalence for daily F&V intake was 55.7% across all cities (22.1% to 85.4%). Compared to the least favourable tertile of city conditions, F&V daily intake prevalence was higher for cities within the most favourable tertile of per capita GDP (median = 65.7% vs. 53.0%), labour force participation (median = 68.7% vs. 49.4%), women achievement-labour force score (median = 63.9% vs. 45.7%), and gender inequality index (median = 58.6% vs. 48.6%). Also, prevalences were higher for temperate climate zones than arid climate zones (median = 65.9% vs. 50.6%). No patterns were found by city level of educational attainment, city size, or population density. This study provides evidence that the prevalence of daily F&V intake varies across Latin American cities and may be favoured by higher socio-economic development, women's empowerment, and temperate weather. Interventions to improve F&V intake in Latin America should consider the behaviour disparities related to underlying local social, economic, and climate zone characteristics.

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Cross-sectional study investigated the association of fresh or minimally processed foods and ultra-processed food consumption with symptoms of depression, anxiety and stress in students from a Brazilian public university. Undergraduate students admitted in 2022 answered an online questionnaire during their first semester. Consumption of 12 subgroups of fresh or minimally processed foods and 13 of ultra-processed foods on the previous day were investigated (affirmative answer for ≥ 5 subgroups was classified as high consumption). Depression, anxiety and stress were investigated using the DASS-21 and mild to extremely severe symptoms were grouped to be compared with individuals without symptoms. Adjusted logistic regression models estimated the Odds Ratio (OR) of the association between symptoms of depression, anxiety and stress (outcomes) and food consumption (exposures), with a significance level of 5%. A total of 924 students were evaluated, of whom 57.7% presented symptoms of depression, 51.9% of anxiety and 59.4% of stress. A high consumption of fresh or minimally processed foods was observed in 80.3% of the students, with a higher frequency among those without symptoms of depression, anxiety, and stress, while 38.9% showed a high consumption of ultra-processed foods, without differences according to symptoms. High consumption of fresh or minimally processed foods was associated with a lower likelihood of symptoms of depression (OR: 0.62; p=0.011), anxiety (OR: 0.58; p=0.003) and stress (OR: 0.69; p=0.043). No association was found between ultra-processed and mental health outcomes. Actions that support and encourage the consumption of healthy food in the university environment can contribute to mental health outcomes.

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The aim of this study was to identify dietary patterns (DP) and their association with socioeconomic, demographic, lifestyle, and overweight characteristics in adults from the Metropolitan Region of Recife (MRR) in 2015/16 and 2019. A cross-sectional study was conducted with individuals of both sexes, aged 20 to 59 years. DPs were identified using Principal Component Analysis (PCA). Binary logistic regression was used to estimate crude and adjusted odds ratios and 95% confidence intervals (95%CI). Three DPs were identified: Dual, Ultra-processed (UP), and Traditional. The Dual DP explained the highest variance in 2015/16 (15.4%), while in 2019, it was the UP DP (15.1%). In 2015/16, the Dual DP was related to the age groups of 20-29 years and 30-40 years, with no associations in 2019. The Traditional DP was associated with physical activity in 2015/16 and, in 2019, with living with ≥5 people in the household, lower education, and overweight. The dietary patterns in 2019 showed a stronger association with social determinants, indicating a greater influence of these factors on eating habits.

Objetivou-se identificar os padrões alimentares e sua associação com características socioeconômicas, demográficas, de estilo de vida e excesso de peso em adultos da Região Metropolitana do Recife, em 2015/16 e 2019. Estudo transversal com indivíduos de ambos os sexos, com idades entre 20 e 59 anos. Os padrões alimentares (PA) foram identificados por meio da análise de componentes principais (ACP). A regressão logística binária foi utilizada para estimar as razões de chances bruta e ajustada e intervalos de confiança 95% (IC95%). Foram identificados três PA: Duplo, Ultraprocessado (UP) e Tradicional. Observou-se que o PA Duplo explicou a maior variância em 2015/16 (15,4%), enquanto em 2019 foi o PA UP (15,1%). Em 2015/16, o PA Duplo associou-se à idade ≥41 anos, maior escolaridade e segurança alimentar (SA); já em 2019, associou-se a maior escolaridade, SA e excesso de peso. O PA UP relacionou-se às faixas etárias de 20-29 anos e 30-40 anos em 2015/16, sem associações em 2019. O PA Tradicional associou-se à prática de atividade física em 2015/16 e, em 2019, a residir com ≥5 pessoas no domicílio, menor escolaridade e excesso de peso. Os padrões alimentares em 2019 mostraram uma maior associação com os determinantes sociais, indicando maior influência desses fatores na alimentação.

El objetivo fue identificar patrones alimentarios y su asociación con características socioeconómicas, demográficas, de estilo de vida y de sobrepeso en adultos de la Región Metropolitana de Recife, en 2015/16 y 2019. Estudio transversal con individuos de ambos sexos, con edades entre 20 y 59 años. años. Los patrones dietéticos (PD) se identificaron mediante análisis de componentes principales (ACP). Se utilizó regresión logística binaria para estimar los odds ratios crudos y ajustados y los intervalos de confianza del 95% (IC95%). Se identificaron tres PDs: Doble, Ultraprocesado (UP) y Tradicional. Se observó que el Doble PD explicó la mayor variación en 2015/16 (15,4%), mientras que en 2019 fue el PD UP (15,1%). En 2015/16, el Doble PD se asoció con edad ≥41 años, educación superior y seguridad alimentaria (SA); en 2019, se asoció con estudios superiores, SA y sobrepeso. El PD UP se relacionó con los grupos etarios de 20-29 años y 30-40 años en 2015/16, sin asociaciones en 2019. El PD Tradicional se asoció con la práctica de actividad física en 2015/16 y, en 2019, con la vida con ≥5 personas en el hogar, menor nivel educativo y sobrepeso. Los patrones dietéticos en 2019 mostraron una mayor asociación con los determinantes sociales, lo que indica una mayor influencia de estos factores en la dieta.

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The study aimed to describe health and living conditions and analyze factors associated with the quality of the diet of women and children under 5 years of age in 9 rural quilombola communities, certified and without land title in the state of Goiás. Cross-sectional study, in which were constructed the indicators of consumption of ultra-processed foods, diet diversity and diet quality. The association of socioeconomic factors with indicators of dietary diversity and quality was assessed using Pearson's chi-square test, Fischer's exact test and logistic regression analysis. 203 women and 73 children aged 0 to 59 months participated in the study. In women, greater dietary diversity associated with higher income, non-participation in an income transfer program and higher education; in children, fewer people living in the household, B/C socioeconomic classification and diverse maternal diet. Low diet quality in children associated with less diversity in the maternal diet; in women, the income variable was associated with lower diet quality in the chi-square analysis, but the multiple analysis showed an opposite result for this variable. There is an urgency to implement effective actions to guarantee the right to health and adequate and healthy food for this population.

O estudo objetivou descrever condições de saúde e vida e analisar fatores associados à qualidade da dieta de mulheres e crianças menores de 5 anos em 9 comunidades quilombolas rurais, certificadas e não tituladas do estado de Goiás. Estudo de delineamento transversal, no qual foram construídos indicadores de consumo de alimentos ultraprocessados, diversidade e qualidade da dieta. Foi avaliada a associação de fatores socioeconômicos com os indicadores de diversidade e qualidade da dieta, usando teste de qui-quadrado de Pearson, teste exato de Fischer e análise de regressão logística. Participaram do estudo 203 mulheres e 73 crianças de 0 a 59 meses. Nas mulheres, maior diversidade da dieta associou-se à maior renda, não participação em programa de transferência de renda e maior escolaridade; nas crianças, à menor quantidade de moradores no domicílio, classificação socioeconômica B/C e dieta diversa materna. A baixa qualidade da dieta em crianças associou-se à menor diversidade da dieta materna; em mulheres, a variável renda esteve associada à menor qualidade da dieta na análise de qui-quadrado, mas a análise múltipla mostrou um resultado oposto para esta variável. Há urgência em implementar ações efetivas para garantia do direito à saúde e alimentação adequada e saudável para essa população.

El estudio tuvo como objetivo describir las condiciones de vida y salud y analizar factores asociados a la calidad de la dieta de mujeres y niños menores de 5 años en 9 comunidades rurales quilombolas, certificadas y no certificadas en el estado de Goiás. Estudio transversal, en cuyos indicadores se construyeron consumo de alimentos ultraprocesados, diversidad y calidad de la dieta. La asociación de factores socioeconómicos con indicadores de diversidad y calidad de la dieta se evaluó mediante la prueba de chi-cuadrado de Pearson, la prueba exacta de Fischer y el análisis de regresión logística. Participaron en el estudio 203 mujeres y 73 niños de 0 a 59 meses. En las mujeres, una mayor diversidad dietética se asoció con mayores ingresos, no participación en un programa de transferencia de ingresos y educación superior; en los niños, el menor número de residentes en el hogar, la clasificación socioeconómica B/C y la dieta materna diversa. La baja calidad de la dieta en los niños se asoció con una menor diversidad en la dieta materna; en las mujeres, la variable ingreso se asoció con una menor calidad de la dieta en el análisis chi-cuadrado, pero el análisis múltiple mostró un resultado opuesto para esta variable. Es urgente implementar acciones efectivas para garantizar el derecho a la salud y a una alimentación adecuada y saludable para esta población.

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The aim of this study was to evaluate the association between dietary practices and household food insecurity (HFI) status among high-risk children during the COVID-19 pandemic. This cross-sectional study was conducted with 147 children aged 1 to 9 attending at three reference health centers in the city of Rio de Janeiro. Diet quality data was assessed using Healthy Eating Indices. The Brazilian Scale of Food and Nutrition Insecurity measured HFI status. Associations between HFI and dietary practices were assessed using logistic regression models. Almost half of the children lived with food insecurity (47.6%). HFI was associated with deteriorated diet quality, evidenced by the increased weekly frequency of consumption of ultra-processed foods (UPF), such as sugar-sweetened beverages and processed meats, and reduced frequency of fruits and vegetables. Parents perceived a reduction in meat and milk consumption and an increase in the intake of UPF among households of children in HFI throughout the pandemic. Our results suggest that HFI status was associated with deterioration in diet quality during the critical phase of social isolation.

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This study aims to estimate the prevalence of special diets and analyze the sociodemographic profile, nutritional status, and eating habits of the Brazilian population that uses special diets. This cross-sectional study was conducted with data from the second 2017/2018 National Food Survey (n=45,689 individuals aged at least 10 years). We questioned the use of hypertension, diabetes, cholesterol, heart disease, and weight-loss diets. Dieting prevalence was estimated by sociodemographic characteristics and nutritional status, and logistic regression models were employed to assess factors associated with dieting. All analyses considered sample design and expansion factors. The prevalence of special diets was 14.3%. Weight-loss (5.2%) and hypertension (4.6%) diets were the most prevalent. Women, older adults, individuals with higher incomes, and obese individuals were more likely to follow any type of special diet than their peers.

O objetivo do presente estudo foi estimar a prevalência do uso de dietas especiais e analisar o perfil sociodemográfico, o estado nutricional e uso de sal, açúcar e adoçantes em brasileiros que realizam dietas especiais. Trata-se de um estudo transversal utilizando dados do segundo Inquérito Nacional de Alimentação 2017/2018 (n=45.689 indivíduos com pelo menos 10 anos de idade). Foi questionado o uso de dietas para hipertensão, diabetes, colesterol, doença do coração e para emagrecer. Foi estimada a prevalência do uso de dietas de acordo com características sociodemográficas e estado nutricional, e modelos de regressão logística foram utilizados para avaliar os fatores associados à realização de dietas. Todas as análises consideraram o desenho da amostra e os fatores de expansão. A prevalência do uso de dietas especiais foi de 14,3%, sendo as dietas para emagrecer (5,2%) e pressão alta (4,6%) as mais prevalentes. As mulheres, idosos, indivíduos de maior renda e com obesidade tiveram maiores chances de realizarem qualquer tipo de dieta especial quando comparados aos seus pares.

El objetivo del presente estudio fue estimar la prevalencia del uso de dietas especiales y analizar el perfil sociodemográfico, el estado nutricional y el uso de sal, azúcar y edulcorantes en brasileños que siguen dietas especiales. Se trata de un estudio transversal que utiliza datos de la segunda Encuesta Nacional de Alimentación 2017/2018 (n=45.689 personas de al menos 10 años). Se cuestionó el uso de dietas para la hipertensión, la diabetes, el colesterol, las enfermedades cardíacas y la pérdida de peso. Se estimó la prevalencia del uso de dieta según características sociodemográficas y estado nutricional, y se utilizaron modelos de regresión logística para evaluar factores asociados al uso de dieta. Todos los análisis consideraron el diseño muestral y los factores de expansión. La prevalencia del uso de dietas especiales fue del 14,3%, siendo las dietas para adelgazar (5,2%) y la hipertensión arterial (4,6%) las más prevalentes. Las mujeres, las personas mayores, las personas con mayores ingresos y las personas con obesidad tenían más probabilidades de seguir cualquier tipo de dieta especial en comparación con sus pares.

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Chrononutrition, the study of the interaction between biological rhythms and nutrition, has emerged as a promising field for addressing metabolic health. However, its role in chronic kidney disease (CKD) remains underexplored. CKD patients often experience circadian disruptions due to renal, metabolic, treatment-related, and lifestyle factors, which may influence their nutritional status and clinical outcomes. Objective: to synthesize and analyze the existing evidence on chrononutrition in CKD patients, identify knowledge gaps, and propose directions for future research across different stages of CKD. Initially, this review contextualizes circadian physiology, alignment, and chronodisruption to explore such factors in CKD patients, focusing on chrononutrition variables already studied in the general population. We discuss how dietary timing and habit adjustments could influence CKD clinical outcomes, offering insights into circadian impacts on disease management. This new approach could optimize patient care, encouraging further research, particularly in the development of personalized strategies for different stages of the disease.

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Background: PAHO-WHO reports that sodium intake is currently high in the Caribbean. The objective was to estimate sodium (Na) and potassium (K) intakes by 72 h dietary recall and compare them with those obtained from 24 h urinary excretion in Dominican adults. Methods: A total of 69 adults (33 men) completed a 3-day dietary recall with emphasis on added salt and seasonings. The 24 h urine samples were analysed by indirect potentiometry using the membrane ion-selective electrode technique. The WHO-PAHO Questionnaire on Knowledge, Attitudes and Behaviour toward Dietary Salt and Health was completed. Results: Dietary Na intake ranged from 1.0 to 8.3 g. Median dietary and urinary Na concentrations were similar (2.7 and 2.5 mmol/d). Mean dietary Na and K concretertentrations were higher than those excreted in 24 h urine (133.0 ± 59.7 vs. 103.7 ± 44.5 mmol Na/d, p = 0.001; 69.0 ± 21.0 vs. 36 ± 16.3 mmol K/d, p < 0.001). The Na-to-K ratio was lower in dietary than in 24 h urine samples (2.0 ± 1.1 vs. 3.2 ± 1.6 mmol/d, p < 0.001). Urinary Na concentration was associated with sex (r = 0.280, p = 0.020) and obesity (r = 0.244, p = 0.043) and K with sex (r = 0.356, p = 0.003). Urinary Na-to-K was inversely related to age (r= -0.291, p = 0.015). Sex and obesity explained 11% of the variance in urinary Na concentration and sex only of the variance in urinary K concentration. The only significant correlation between dietary and urinary concentrations was that of K (r = 0.342, p = 0.004). This correlation matrix, controlled for overweight and sex, maintained the level of significance and was equal in almost 12% of the data. Conclusions: These data, which are the first data on Na and K intakes in Dominicans assessed by dietary assessment, showed a higher mean sodium intake (mean of dietary recall and urinary excretion data: 2.7 g Na, 6.8 g salt/day) and a lower K intake (2.06 g/day) than the WHO recommendations (<2.0 g Na, ≥3.5 g K). Potassium, but not sodium, intake from 72 h food recall and 24 h urinary excretion showed a correlation when controlling for sex and obesity, but not enough to consider them interchangeable.

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Background: Previous studies have tested the link between diet quality and academic performance in the young population. However, no study has analyzed the specific relationship between ultra-processed food (UPF) consumption and academic performance in adolescents. The aim of the present study was to test the link of UPF consumption with academic performance in a sample of adolescents from Spain. Methods: This secondary cross-sectional analysis utilized information from 788 youths aged 12-17 participating in the Eating Healthy and Daily Life Activities study. The sample comprised 44.7% boys and 55.3% girls, with a median age of 14.0 years (interquartile range [IQR]: 13.0 to 15.0). The UPF consumption was measured through a self-completed food frequency survey. Academic performance was determined using end-of-year academic records provided by each educational institution. To examine the relationships between these variables, generalized linear models were employed. The models were adjusted for factors including sex, age, socioeconomic status, conduct, physical activity, sleep duration, body mass index, and sedentary behavior. Results: Significant dose-response associations between UPF consumption and all the different academic performance indicators, showing that higher UPF consumption is consistently associated with poorer academic performance (p < 0.001 for all). Higher daily UPF servings were associated with lower adjusted marginal means for grade point average, language, maths, and English. Furthermore, adolescents in the highest UPF tertile had a grade point average of 5.6 compared to 6.6 in the lowest tertile, with similar patterns being observed for language (6.0 vs. 7.0), maths (5.2 vs. 6.2), and English (5.7 vs. 6.6). Conclusions: Our study identifies a negative association between UPF consumption and academic performance in adolescents, highlighting it as a modifiable factor that could impact academic outcomes. Adolescents with higher UPF consumption exhibited consistently lower grades across various academic indicators, emphasizing the importance of dietary quality during this critical developmental period.

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BACKGROUND: The early consumption of ultra-processed foods (UPFs) and added sugars (AS) has been linked to adverse outcomes in infancy. The objective of this study was to determine the effectiveness of a dietary counselling strategy to prevent the consumption of UPFs and AS in the first year of life. METHODOLOGY: A multicentre randomised controlled trial was conducted with 516 mother-child pairs in three state capitals of Brazil. Mothers were randomly assigned to the control group (CG) or intervention group (IG) after childbirth. The IG received orientation based on UNICEF dietary guidelines and five monthly telephone calls to reinforce the intervention. Dietary intake was measured using food introduction questionnaires and 24-h recalls during home visits at 6 and 12 months. Between-group differences were analysed by generalised estimating equations and presented as mean difference (95% CI). RESULTS: Children in the IG had lower UPF intake at 6 and 12 months of age (-20.69 g/day; 95% CI: -37.87 to -3.50; p = 0.018 and -32.51 g/day; 95% CI: -61.03 to -3.99; p = 0.025) and lower AS intake at 12 months of age (-4.92 g/day; 95% CI: -9.43 to -0.41; p = 0.033). The intervention also had a positive impact on the period of exclusive breastfeeding, reducing the offer of infant formula, cow's milk, and toddler milk in the first year of life. PRINCIPAL CONCLUSIONS: The dietary counselling strategy was effective at preventing the early consumption of UPFs and AS in the first year of life. Future research should focus on social and cultural barriers to improve adherence to infant feeding interventions.

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This study aimed to evaluate the effect of increasing doses (0, 6, 12, 18, and 24 mL/day) of green propolis extract (GPE) on intake, apparent digestibility, ingestive behavior, water balance, ruminal parameters, hematology, serum biochemistry, and nitrogen balance in feedlot sheep. We used five castrated male sheep, ½ Dorper x ½ Santa Inês, with a mean age of 26 months and weight of 47.94 ± 4.73 kg. The increase in GPE levels did not influence (P > 0.05) the intake and apparent digestibility of dry matter, crude protein, and neutral detergent fiber in sheep. Feeding, rumination, and leisure time were not influenced (P > 0.05) by the increase in the GPE supplied to sheep. The pH (6.14 ± 0.25) and ruminal ammonia nitrogen (8.27 mg/dL) values were also not influenced (P > 0.05) by increasing doses of GPE. The water absorbed and nitrogen retained by the sheep were also not influenced (P > 0.05) by the increase in the GPE supplied. Serum biochemistry was not influenced (P > 0.05). However, the concentrations of eosinophils and monocytes were altered (P < 0.05) by the supply of GPE to sheep. The supply of up to 24 mL/day of GPE does not interfere with intake, apparent digestibility, ingestive behavior, water balance, and nitrogen balance of feedlot sheep. Still, it influences the immune response and liver activity of animals.

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INTRODUCTION: In Chile, the prevalence of overweight among schoolchildren over the age of 5 is approximately 50%, one of the highest in the Americas region. This is largely influenced by the presence of inadequate food environments, characterized by limited access to healthy foods and a high availability of highly processed foods (HPF). This study analyzes food consumption in Chilean schoolchildren and the association of this with the Chilean Dietary Guidelines Based on Foods (DGBF) and the HPF consumption. MATERIAL AND METHODS: The sample (1,094 schoolchildren) was obtained from the baseline of the FONDEF IT18I0016 project, in Santiago-Chile. Anthropometry and socioeconomic data were measured. Dietary intake was assessed using a validated semi-quantitative frequency survey featuring images of food groups aligned with DGBF, as well as HPF. All data were collected by trained professional nutritionists. Associations between dependent and independent variables, and potential confounding factors were calculated using logistic regression models with stepwise backward/forward. A p < 0.05 was accepted as significant, using Stata 16.0. RESULTS: Most of the students (54.1%) were with malnutrition by excess and 20.0% exhibited abdominal obesity. Twenty percent of the students met the recommended intake for DGBF (fruits, vegetables, fish, milk and dairy products, legumes, water) and less than 5% did not consume any HPF. Consuming some sub-groups of HPF in moderate quantities (either no consumption or occasional consumption) increases the likelihood of meeting DGBF: candies and sweets (OR: 0.72; p = 0.04), pies with or without filling (OR: 0.63; p = 0.01), and salted snacks (OR: 0.67; p = 0.02). CONCLUSION: Our results contribute to reaffirm the need to enhance healthy food consumption among schoolchildren and to discourage the intake of HPF, particularly focusing on specific sub-groups of HPF that may increase the risk of displacing the consumption of food groups recommended by the DGBF.