Cambios en el patrón de consumo de alimentos y bebidas en Argentina, 1996-2013

El patrón alimentario de la población se ha modificado en los últimos años como consecuencia de cambios culturales y en la accesibilidad a los alimentos. Con el objetivo de describir los cambios en el patrón de consumo de alimentos y bebidas en las últimas dos décadas en Argentina, se analizó la Encuesta Nacional de Gastos de los Hogares de los años 1996-1997, 2004-2005 y 2012-2013. Se estimó el consumo aparente promedio de alimentos y bebidas en gramos o mililitros de peso neto por adulto equivalente para cada período. La variación en la cantidad de alimentos y bebidas disponibles para consumo entre 1996 y 2013 muestra un cambio en la estructura del patrón de dieta, que parece indicar un cambio en la forma de comprar, preparar y consumir los alimentos, relacionado con una mayor practicidad, más accesibilidad y menos tiempo dedicado a la preparación de los alimentos.The dietary pattern of the population has shifted in recent years as a result of cultural changes and modifications in food accessibility. In order to describe the changes in food and beverage consumption patterns in the last two decades in Argentina, the National Survey of Household Expenditure [Encuesta Nacional de Gastos de los Hogares] was analyzed for the periods 1996-1997, 2004-2005 and 2012-2013. The average apparent consumption of food and beverages in grams or milliliters of net weight per adult equivalent was estimated for each period. The variation in the amount of food and beverages available for consumption between 1996 and 2013 shows that the structure of the dietary pattern has changed, appearing to indicate shifts in the ways of buying, preparing and consuming foods related to greater convenience and accessibility and less time spent on food preparation

Urbano y rural: diferencias en la alimentación de los hogares argentinos según nivel de ingreso y área de residencia

The environment and the socioeconomic level are determinants of eating behavior because they affect availability, accessibility and food preferences. In order to describe the apparent consumption of food and the availability of energy and nutrients in urban and rural households in Argentina according to their income level, the 2004-2005 National Household Expenditure Survey was analyzed. The average apparent consumption of food and beverages was calculated in grams or milliliters of net weight per adult equivalent per day, for urban and rural households, and by household income per capita quintiles. Rural households made up 7% of the sample, and had a higher proportion of low-income families than urban households. There is different pattern of apparent consumption of food and beverages among rural and urban households in Argentina, and there are also differences between households according to the level of income in both environments. Knowing the content and magnitude of these contrasts is of great use in looking for strategies to improve the population’s diet.El entorno y el nivel socioeconómico son determinantes del comportamiento alimentario porque inciden en la disponibilidad, la accesibilidad y las preferencias alimentarias. Con el objetivo de describir el consumo aparente de alimentos y la disponibilidad de energía y nutrientes de hogares urbanos y rurales de la Argentina, según su nivel de ingresos, se analizó la Encuesta Nacional de Gastos de los Hogares 2004-2005. Se calculó el consumo aparente promedio de alimentos y bebidas en gramos o mililitros de peso neto por adulto equivalente por día, de hogares urbanos y rurales, y según quintil de ingresos per cápita del hogar. El 7% fueron hogares rurales, y presentaron mayor proporción de familias con bajos ingresos respecto a los urbanos. Existe un patrón de consumo aparente de alimentos y bebidas distinto entre hogares rurales y urbanos de Argentina, y además existen diferencias entre los hogares según el nivel de ingresos en ambos entornos. Conocer los contrastes y su magnitud es de gran utilidad para buscar estrategias tendientes a mejorar la alimentación de la población

Urbano y rural: diferencias en la alimentación de los hogares argentinos según nivel de ingreso y área de residencia

El entorno y el nivel socioeconómico son determinantes del comportamiento alimentario porque inciden en la disponibilidad, la accesibilidad y las preferencias alimentarias. Con el objetivo de describir el consumo aparente de alimentos y la disponibilidad de energía y nutrientes de hogares urbanos y rurales de la Argentina, según su nivel de ingresos, se analizó la Encuesta Nacional de Gastos de los Hogares 2004-2005. Se calculó el consumo aparente promedio de alimentos y bebidas en gramos o mililitros de peso neto por adulto equivalente por día, de hogares urbanos y rurales, y según quintil de ingresos per cápita del hogar. El 7% fueron hogares rurales, y presentaron mayor proporción de familias con bajos ingresos respecto a los urbanos. Existe un patrón de consumo aparente de alimentos y bebidas distinto entre hogares rurales y urbanos de Argentina, y además existen diferencias entre los hogares según el nivel de ingresos en ambos entornos. Conocer los contrastes y su magnitud es de gran utilidad para buscar estrategias tendientes a mejorar la alimentación de la población.The environment and the socioeconomic level are determinants of eating behavior because they affect availability, accessibility and food preferences. In order to describe the apparent consumption of food and the availability of energy and nutrients in urban and rural households in Argentina according to their income level, the 2004- 2005 National Household Expenditure Survey was analyzed. The average apparent consumption of food and beverages was calculated in grams or milliliters of net weight per adult equivalent per day, for urban and rural households, and by household income per capita quintiles. Rural households made up 7% of the sample, and had a higher proportion of low-income families than urban households. There is different pattern of apparent consumption of food and beverages among rural and urban households in Argentina, and there are also differences between households according to the level of income in both environments. Knowing the content and magnitude of these contrasts is of great use in looking for strategies to improve the population’s diet

Stimulation of innate immune cells Induced by probiotics: participation of toll- like receptors

Objective: The present work aimed to study the functionality of macrophages from different locations (peritoneum, spleen and Peyer´s patches) when they were stimulated with probiotics microorganisms: Lactobacillus casei CRL 431 and Lactobacillus paracasei CNCM I-1518 or a Probiotic Fermented Milk (PFM) through Toll-Like Receptors (TLRs), prior challenged with agonists or antagonists of TLRs. Methods: BALB/c mice received in the drinking water, the probiotic bacteria (L. casei CRL 431 and L. paracasei CNCM I-1518) or the PFM. We focused our investigation mainly on the phagocytic activity of macrophages from peritoneum, spleen and Peyer?s patches and cytokine production were evaluated prior challenged with TLR2 and TLR4 agonists or antagonists. The microbicidal activity of macrophages and against an infection with Salmonella typhimurium was also studied. To assess the role of TLR in probiotic stimulation, we evaluated the phagocytic activity, cytokine production and Immunoglobin G (IgG) anti-OVA in C57BL/6 knockout mice to MyD88, TLR2 and TLR4. Results: In BALB/c mice, the best effect in the phagocytosis assay was obtained with the probiotic bacteria L. casei CRL 431, this effect was reinforced with TLR2 agonist. The production of different cytokines (IL-10 and IL-6) was improved with the probiotic treatments and this production was ameliorated with TLRs agonists. The antimicrobial activity was increased with L. casei CRL 431 and L. paracasei CNCM I-1518, TLR2 and TLR4 antagonists had a negative effect on microbicidal activity. The administration of probiotic bacteria or PFM improved the host response against S. typhimurium controlling the infection during the first hours post-infection. In C57BL/6 knockout mice, phagocytic activity was significantly diminished in comparison to wild type mice and the probiotic bacteria or PFM administration was not able to improve this activity. The IL-10 production was increased at a concentration of 108 cells/ml of L. casei CRL 431 in TLR2-/- and TLR4-/-, but not in MyD88-/- mice. The administration of probiotic bacteria or PFM did not play a stimulating effect in the systemic immune response against to OVA antigen in knockout mice. Conclusions: Probiotics modulate the different signaling pathways of innate immune cells through the TLRs. The macrophages activation depends on location of them and that different probiotic strains of Lactobacilli can evoke different intensity of responses. The data suggest that probiotic not only promote a major expression of TLRs but also use these receptors via the innate immune cells as macrophages to stimulate and modulate the immune response.Fil: Maldonado Galdeano, María Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Microbiología; ArgentinaFil: Lemme Dumit, José María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Microbiología; ArgentinaFil: Thieblemont, Nathalie. Inserm; Francia. Center of Excellence; FranciaFil: Carmuega, Esteban. Centro de Estudios Nutricionales Infantiles; ArgentinaFil: Weill, Ricardo. DANONE; ArgentinaFil: Perdigon, Gabriela del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Centro de Referencia para Lactobacilos; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Microbiología; Argentin

Impact of a probiotic fermented milk in the gut ecosystem and in the systemic immunity using a non-severe protein-energy-malnutrition model in mice

<p>Abstract</p> <p>Background</p> <p>Malnutrition affects the immune response, causing a decrease of defence mechanisms and making the host more susceptible to infections. Probiotics can reconstitute the intestinal mucosa and stimulate local and systemic immunity. The aim of this work was evaluate the effects of a probiotic fermented milk as a complement of a re-nutrition diet, on the recovery of the intestinal barrier, and mucosal and systemic immune functions in a murine model of non-severe protein-energy-malnutrition. Its potential protection against <it>Salmonella enterica </it>serovar Typhimurium (<it>S</it>. Typhimurium) infection was also analyzed.</p> <p>Methods</p> <p>Mice were undernourished and divided into 3 groups according to the dietary supplement received during re-nutrition (milk, probiotic fermented milk or its bacterial free supernatant) and compared to well-nourished and malnourished mice. They were sacrificed previous to the re-nutrition and 5 days post re-nutrition. The phagocytic activity of macrophages from spleen and peritoneum and the changes in the intestinal histology and microbiota were evaluated. Different immune cell populations and cytokine productions were analyzed in the small intestine tissues. The effect of the re-nutrition supplements on the systemic immunity using OVA antigen and against an infection with <it>S. </it>Typhimurium was also studied.</p> <p>Results</p> <p>Probiotic fermented milk was the most effective re-nutrition diet that improved the intestinal microbiota. Its administration also increased the number of IgA+ cells, macrophages and dendritic cells. The production of different cytokine (IFN-γ, TNF-α, IL-12) by these cells and the phagocytic activity in peritoneum and spleen was also increased. This re-nutrition diet also stimulated the systemic immune response against OVA antigen which was diminished after the malnutrition period and also improved the host response against <it>S. </it>Typhimurium, decreasing the spread of pathogenic bacteria to the liver and the spleen. The importance of the metabolites released during milk fermentation was also demonstrated through the analysis of the bacterial free supernatant obtained from the probiotic fermented milk, but the whole product showed the best effects in the parameters evaluated in this study.</p> <p>Conclusions</p> <p>The administration of probiotic fermented milk as a dietary supplement during the re-nutrition process in a murine immunodeficiency model by malnutrition could be a good adjuvant diet to improve the gut and systemic immune response for the protection against <it>Salmonella </it>infection.</p

Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories: a pooled analysis of 2181 population-based studies with 65 million participants

Summary Background Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which measures weight gain beyond what is expected from height gain, for school-aged children and adolescents. Methods For this pooled analysis, we used a database of cardiometabolic risk factors collated by the Non-Communicable Disease Risk Factor Collaboration. We applied a Bayesian hierarchical model to estimate trends from 1985 to 2019 in mean height and mean BMI in 1-year age groups for ages 5–19 years. The model allowed for non-linear changes over time in mean height and mean BMI and for non-linear changes with age of children and adolescents, including periods of rapid growth during adolescence. Findings We pooled data from 2181 population-based studies, with measurements of height and weight in 65 million participants in 200 countries and territories. In 2019, we estimated a difference of 20 cm or higher in mean height of 19-year-old adolescents between countries with the tallest populations (the Netherlands, Montenegro, Estonia, and Bosnia and Herzegovina for boys; and the Netherlands, Montenegro, Denmark, and Iceland for girls) and those with the shortest populations (Timor-Leste, Laos, Solomon Islands, and Papua New Guinea for boys; and Guatemala, Bangladesh, Nepal, and Timor-Leste for girls). In the same year, the difference between the highest mean BMI (in Pacific island countries, Kuwait, Bahrain, The Bahamas, Chile, the USA, and New Zealand for both boys and girls and in South Africa for girls) and lowest mean BMI (in India, Bangladesh, Timor-Leste, Ethiopia, and Chad for boys and girls; and in Japan and Romania for girls) was approximately 9–10 kg/m2. In some countries, children aged 5 years started with healthier height or BMI than the global median and, in some cases, as healthy as the best performing countries, but they became progressively less healthy compared with their comparators as they grew older by not growing as tall (eg, boys in Austria and Barbados, and girls in Belgium and Puerto Rico) or gaining too much weight for their height (eg, girls and boys in Kuwait, Bahrain, Fiji, Jamaica, and Mexico; and girls in South Africa and New Zealand). In other countries, growing children overtook the height of their comparators (eg, Latvia, Czech Republic, Morocco, and Iran) or curbed their weight gain (eg, Italy, France, and Croatia) in late childhood and adolescence. When changes in both height and BMI were considered, girls in South Korea, Vietnam, Saudi Arabia, Turkey, and some central Asian countries (eg, Armenia and Azerbaijan), and boys in central and western Europe (eg, Portugal, Denmark, Poland, and Montenegro) had the healthiest changes in anthropometric status over the past 3·5 decades because, compared with children and adolescents in other countries, they had a much larger gain in height than they did in BMI. The unhealthiest changes—gaining too little height, too much weight for their height compared with children in other countries, or both—occurred in many countries in sub-Saharan Africa, New Zealand, and the USA for boys and girls; in Malaysia and some Pacific island nations for boys; and in Mexico for girls. Interpretation The height and BMI trajectories over age and time of school-aged children and adolescents are highly variable across countries, which indicates heterogeneous nutritional quality and lifelong health advantages and risks

Rising rural body-mass index is the main driver of the global obesity epidemic in adults

Body-mass index (BMI) has increased steadily in most countries in parallel with a rise in the proportion of the population who live in cities(.)(1,2) This has led to a widely reported view that urbanization is one of the most important drivers of the global rise in obesity(3-6). Here we use 2,009 population-based studies, with measurements of height and weight in more than 112 million adults, to report national, regional and global trends in mean BMI segregated by place of residence (a rural or urban area) from 1985 to 2017. We show that, contrary to the dominant paradigm, more than 55% of the global rise in mean BMI from 1985 to 2017-and more than 80% in some low- and middle-income regions-was due to increases in BMI in rural areas. This large contribution stems from the fact that, with the exception of women in sub-Saharan Africa, BMI is increasing at the same rate or faster in rural areas than in cities in low- and middle-income regions. These trends have in turn resulted in a closing-and in some countries reversal-of the gap in BMI between urban and rural areas in low- and middle-income countries, especially for women. In high-income and industrialized countries, we noted a persistently higher rural BMI, especially for women. There is an urgent need for an integrated approach to rural nutrition that enhances financial and physical access to healthy foods, to avoid replacing the rural undernutrition disadvantage in poor countries with a more general malnutrition disadvantage that entails excessive consumption of low-quality calories.Peer reviewe

Urbano y rural: diferencias en la alimentación de los hogares argentinos según nivel de ingreso y área de residencia

The environment and the socioeconomic level are determinants of eating behavior because they affect availability, accessibility and food preferences. In order to describe the apparent consumption of food and the availability of energy and nutrients in urban and rural households in Argentina according to their income level, the 2004-2005 National Household Expenditure Survey was analyzed. The average apparent consumption of food and beverages was calculated in grams or milliliters of net weight per adult equivalent per day, for urban and rural households, and by household income per capita quintiles. Rural households made up 7% of the sample, and had a higher proportion of low-income families than urban households. There is different pattern of apparent consumption of food and beverages among rural and urban households in Argentina, and there are also differences between households according to the level of income in both environments. Knowing the content and magnitude of these contrasts is of great use in looking for strategies to improve the population’s diet.El entorno y el nivel socioeconómico son determinantes del comportamiento alimentario porque inciden en la disponibilidad, la accesibilidad y las preferencias alimentarias. Con el objetivo de describir el consumo aparente de alimentos y la disponibilidad de energía y nutrientes de hogares urbanos y rurales de la Argentina, según su nivel de ingresos, se analizó la Encuesta Nacional de Gastos de los Hogares 2004-2005. Se calculó el consumo aparente promedio de alimentos y bebidas en gramos o mililitros de peso neto por adulto equivalente por día, de hogares urbanos y rurales, y según quintil de ingresos per cápita del hogar. El 7% fueron hogares rurales, y presentaron mayor proporción de familias con bajos ingresos respecto a los urbanos. Existe un patrón de consumo aparente de alimentos y bebidas distinto entre hogares rurales y urbanos de Argentina, y además existen diferencias entre los hogares según el nivel de ingresos en ambos entornos. Conocer los contrastes y su magnitud es de gran utilidad para buscar estrategias tendientes a mejorar la alimentación de la población

Effect of the ingestion of a symbiotic yogurt on the bowel habits of women with functional constipation

Introducción/objetivos: la constipación funcional es un problema prevalente en la población occidental. Existen evidencias de que la toma de alimentos pre y probióticos puede modificar favorablemente el hábito evacuatorio intestinal. En este trabajo se estudió el efecto de la ingesta de Activia®, un yogur conteniendo 10 8 UFC/g de Bifidobacterium animalis (DN-173 010) y un fructoligosacárido en mujeres de 18 a 55 años con y sin constipación funcional (criterios de Roma II). Métodos: luego de sendos períodos de estabilización y basal fueron aleatorizadas a recibir durante 14 días 2 unidades/día de Activia o de un postre lácteo sin probiótico ni prebiótico (control). Luego los grupos fueron entrecruzados durante otros 14 días. Resultados: de las 399 mujeres que iniciaron el estudio, 378 fueron evaluables. En el grupo de constipadas (n= 266) la toma del simbiótico se asoció con una mayor frecuencia evacuatoria (6,1±2,7 dep./semana con Activia vs. 5,0±2,6 dep./semana en controles; P<0,01), mejoría en la escala de Bristol de calidad de las heces (3,6±1,0 vs. 3,4±1,0; P<0,01), menor esfuerzo evacuatorio (1,9±0,8 vs. 2,2±0,9; P<0,01) y menor proporción de dolor evacuatorio (0,1±0,2 vs. 0,2±0,3 ; P<0,01). En el grupo sin constipación se observaron variaciones estadísticamente significativas en igual sentido pero de menor magnitud, con excepción del dolor que mostró un valor basal muy bajo. Conclusión: la ingesta del yogurt prebiótico en mujeres con constipación funcional mostró una mejoría significativa de los parámetros relacionados con la evacuación intestinal. La utilización de este alimento simbiótico puede resultar una herramienta útil y segura en el manejo de la constipación