Factors Impacting the Uptake of Research into Dietary Sodium Reduction Policies in Five Latin American Countries: A Qualitative Study.

Background: Diets high in sodium are a risk factor for cardiovascular disease (CVD). Latin American countries (LAC) consume more than double the recommended sodium levels. Research uptake in dietary sodium reduction policies has been inconsistent in LAC, and the factors impacting research uptake are largely unknown. This study aimed to describe the barriers and facilitators to the uptake of research into sodium reduction policies from a funded research consortium with 5 LAC (Argentina, Brazil, Costa Rica, Paraguay, and Peru). Methods: A qualitative case study included 5 researchers and 4 Ministry of Health officers from the funded consortium. Dimensions from Trostle's framework of actors, content, context, and process and relative advantages from the Diffusion of Innovation informed the semi-structured interview guide and analysis. One-on-one interviews were completed from November 2019 to January 2020. The participants validated transcripts, coded, and analyzed using NVivo software. Results: Key barriers to policy advancements included 1) conflicts of interest from the food industry and some government actors; 2) government turnover resulting in policy and personnel changes; 3) a lack of human and financial resources; and 4) and communication gaps among key actors. Key facilitators to policy advancement included: 1) the content and quality of health economic, food supply, and qualitative data; 2) support, technical assistance, and alliances with the government, non-governmental organizations, and international experts; and 3) researchers enhanced skillsets facilitated with communication and dissemination with policymakers. Conclusion: Researchers and policymakers are faced with several barriers and facilitators on research uptake in policies and programs in LAC; these factors should be addressed and leveraged to advance sodium reduction policy development. Future LAC studies can draw from the insights and lessons learned from this case study and apply the results to future efforts on policy nutrition to promote healthy eating and reduce CVD risk.

Regional Overview on the Double Burden of Malnutrition and Examples of Program and Policy Responses: Latin America and the Caribbean.

BACKGROUND: Hunger, food insecurity, stunting, anemia, overweight, and noncommunicable diseases (NCDs) may coexist in the same person, household, and community in Latin America and the Caribbean (LAC). The double burden of malnutrition (DBM) is an important cause of disability and premature death, which could be addressed with comprehensive policies such as the Plan of Action for the Prevention of Obesity in Children and Adolescents. This paper summarizes the main policies and actions aimed to prevent undernutrition and obesity. SUMMARY: Several countries are implementing the Plan of Action, Caribbean Public Health Agency is actively supporting Ministries of Health, Education, and Sport to develop school nutrition policies and strategies to create health-promoting environments at school and in their surrounding communities. Chile is implementing the comprehensive child protection system "Chile Crece Contigo" that integrates health, social development, and educational activities to optimize growth and childhood cognitive-motor development. Brazil is implementing policies and plans to commit to international targets regarding food and nutrition security, NCDs and their risk factors. Key Messages: The DBM exists in the Americas and contributes to disability and premature death. The Region is making progress implementing policies and actions addressing the DBM. However, stronger political will and leadership are needed to enact legislation and policies that create and support enabling -environments.

Risk of excessive intake of vitamins and minerals delivered through public health interventions: objectives, results, conclusions of the meeting, and the way forward.

The excessive consumption of certain vitamins and minerals could have deleterious consequences on health and development of individuals and populations. Simultaneous micronutrient-delivery interventions could be challenging in terms of safety as the target populations may overlap, posing a risk of excessive intake of certain micronutrients. The Evidence and Programme Guidance Unit of the Department of Nutrition for Health and Development of the World Health Organization convened a technical consultation on the risk of excessive intake of vitamins and minerals delivered through public health interventions in October 2017. The technical consultation's working groups identified important and emerging technical issues, lessons learned, and research priorities related to (1) planning, implementing, monitoring, and evaluating nutrition programs for the detection and control of the risk of excessive intakes; (2) safety, quality control, and assurance considerations; (3) coordination between public health nutrition interventions and other interventions and sectors; and (4) the legislative framework and policy coherence needed for simultaneous nutrition interventions. This paper provides the background and rationale of the technical consultation, synopsizes the presentations, and provides a summary of the main considerations proposed by the working groups.

Experiences and lessons learned for programme improvement of micronutrient powders interventions.

Continual course correction during implementation of nutrition programmes is critical to address factors that might limit coverage and potential for impact. Programme improvement requires rigorous scientific inquiry to identify and address implementation pathways and the factors that affect them. Under the auspices of "The Micronutrient Powders Consultation: Lessons Learned for Operational Guidance," 3 working groups were formed to summarize experiences and lessons across countries regarding micronutrient powder (MNP) interventions for young children. This paper focuses on how MNP interventions undertook key elements of programme improvement, specifically, the use of programme theory, monitoring, process evaluation, and supportive supervision. Methods included a review of published and grey literature, interviews with key informants, and deliberations throughout the consultation process. We found that although much has been written and published about the use of monitoring and process evaluation to inform MNP interventions at small scale, there has been little formal documentation of lessons for the transition from pilot to scaled implementation. Supervision processes and experiences are not documented, and to our knowledge, there is no evidence of whether they have been effective to improve implementation. Improving the efficiency and effectiveness of interventions requires identification of critical indicators for detecting implementation challenges and drivers of impact, integration with existing programmes and systems, strengthened technical capacity, and financing for implementation of effective monitoring systems. Our understanding of programme improvement for MNP interventions is still incomplete, especially outside of the pilot stage, and we propose a set of implementation research questions that require further investigation.

Nutrition situation in Latin America and the Caribbean: current scenario, past trends, and data gaps.

OBJECTIVE: To determine the current nutritional status in Latin America and the Caribbean (LAC) and identify data gaps and trends in nutrition surveillance. METHODS: A systematic Internet search was conducted to identify official sources that allowed for monitoring of LAC countries' nutritional status, including progress toward World Health Organization Global Nutrition Targets 2025. Reports from national nutrition surveillance systems and reports on nationally representative surveys were collected and collated to 1) analyze nutritional status, based on life-course anthropometric indicators and biomarkers, and 2) identify gaps in data availability and trends in nutritional deficiencies. Information on iron, vitamin A, iodine, folate, and vitamin B12 deficiency was also collected and collated. RESULTS: Twenty-two of the 46 LAC countries/territories (48%) had information on undernutrition (stunting, underweight, and wasting) in children under 5 years old and women of reproductive age (WRA). Seventeen countries (38%) had information on anemia in children under 5 years old and WRA, and 12 (27%) had information on anemia in pregnant women. Although overall nutritional status has improved in the past few decades in all countries in the region, some LAC countries still had a high prevalence of stunting and anemia in children and WRA. Overweight affected at least 50% of WRA in nine countries with available data, and was increasing in children. Data for school-age children, adolescents, adult males, and older adults were scarce in the region. CONCLUSIONS: Overall nutritional status has improved in the LAC countries with available information, but more efforts are needed to scale up nutrition-sensitive and nutrition-specific interventions to tackle malnutrition in all its forms, as stunting, anemia, and vitamin A deficiency are still a public health problem in many countries, and overweight is an epidemic. Nutrition information systems are weak in the region, and countries need to strengthen their capacity to monitor nutritional status indicators.

Mapping of nutrition and sectoral policies addressing malnutrition in Latin America.

OBJECTIVE: To map existing policies addressing malnutrition in all its forms in Latin America and identify gaps in enabling environments supporting the five priority lines of action outlined in the World Health Organization Comprehensive Implementation Plan on Maternal, Infant and Young Child Nutrition (CIP) approved in 2014. METHODS: This descriptive study consisted of a systematic Internet search for and mapping of publicly available nutrition-related and sectoral policies already in place to address malnutrition in all its forms in 18 Latin American countries (Argentina, Belize, Bolivia, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, and Uruguay). The policies were described in documents retrieved from the websites of ministries of health, education, agriculture, labor, and development; the national congress; and other government agencies. RESULTS: All 18 countries had relevant policies to address malnutrition, especially undernutrition and micronutrient deficiencies, but only a few had policies to address overweight and obesity. Nutrition actions were incorporated in food and nutrition security and social protection policies in all 18 countries, and were part of education, environment, agricultural, development, and/or employment policies in some countries. Information on human and financial resources assigned to nutrition was not available through the search strategies used in the study. CONCLUSIONS: All 18 countries included in this review had established enabling environments to support CIP implementation. However, each of the 18 countries needs to develop integrated policies for the promotion of nutrition and prevention of noncommunicable diseases through cross-sector involvement and multi-stakeholder collaboration.

Conditional cash transfer programs and the health and nutrition of Latin American children.

OBJECTIVE: To 1) describe the benefits, conditions, coverage, funding, goals, governance, and structure of well-established conditional cash transfer programs (CCTs) in Latin America and 2) identify their health and nutritional impacts among children under 5 years old. METHODS: A realist review was conducted. CCTs were included if they met the following inclusion criteria: 1) current national-level program; 2) coverage of at least 50% of the target population; 3) continuous operation at scale for 10+ years; 4) clear description of structure, funding sources, and governance; 5) both health/nutrition- and education-related conditions for participation; and 6) available impact evaluation studies with health, development, and/or nutrition indicators among children under 5 years old. Three CCTs (one each in Brazil, Colombia, and Mexico) met the criteria. RESULTS: There was consistent evidence that the three CCTs selected for review had positive impacts on child health and nutrition outcomes in their respective countries. In all three countries, the programs were scaled up and positive impacts were documented relatively quickly. All three programs had strong political support and clear and transparent governance structures, including accountability and social participation mechanisms, which might explain their success and sustainability. CONCLUSIONS: CCTs in Latin America have had a positive impact on child health and nutrition outcomes among the poorest families. A key challenge for the future is to reform these programs to help families move out of not only extreme poverty but all poverty in order to lead healthy and productive lives, as called for in the post-2105 Sustainable Development Goals.

Tackling malnutrition in Latin America and the Caribbean: challenges and opportunities.

Undernutrition and micronutrient deficiencies are still a public health problem in Latin America and the Caribbean (LAC), and overweight and obesity have reached epidemic proportions. To assess the nutrition landscape in LAC countries and guide future nutrition efforts and investments, the Pan American Health Organization and the Micronutrient Initiative joined efforts to 1) identify information gaps and describe the current nutritional situation in the region; 2) map existing policies to address malnutrition in Latin America; 3) describe the impact of conditional cash transfer programs (CCTs) on nutrition and health outcomes; and 4) identify the challenges and opportunities to address malnutrition in the region. This article summarizes the methods and key findings from that research and describes the current challenges and opportunities in addressing malnutrition in the LAC region. LAC countries have advanced in reducing undernutrition and micronutrient deficiencies, but important gaps in information are a major concern. These countries have policies to address undernutrition and micronutrient deficiencies, but comprehensive and intersectoral policies to tackle obesity are lacking. CCTs in Brazil, Colombia, and Mexico have been reported to have a positive impact on child nutrition and health outcomes, providing an opportunity to integrate nutrition actions in intersectoral platforms. The current epidemiological situation and policy options offer an opportunity for countries, technical agencies, donors, and other stakeholders to jointly scale up nutrition actions. This can support the development of comprehensive and intersectoral policies to tackle the double burden of malnutrition, strengthen national nutrition surveillance systems, incorporate monitoring and evaluation as systematic components of policies and programs, document and increase investments in nutrition, and assess the effectiveness of such policies to support political commitment and guarantee sustainability.

Conditional cash transfer programs and the health and nutrition of Latin American children / Los programas de transferencias de efectivo condicionadas y la salud y alimentación de los niños latinoamericanos

ABSTRACT Objective To 1) describe the benefits, conditions, coverage, funding, goals, governance, and structure of well-established conditional cash transfer programs (CCTs) in Latin America and 2) identify their health and nutritional impacts among children under 5 years old. Methods A realist review was conducted. CCTs were included if they met the following inclusion criteria: 1) current national-level program; 2) coverage of at least 50% of the target population; 3) continuous operation at scale for 10+ years; 4) clear description of structure, funding sources, and governance; 5) both health/nutrition- and education-related conditions for participation; and 6) available impact evaluation studies with health, development, and/or nutrition indicators among children under 5 years old. Three CCTs (one each in Brazil, Colombia, and Mexico) met the criteria. Results There was consistent evidence that the three CCTs selected for review had positive impacts on child health and nutrition outcomes in their respective countries. In all three countries, the programs were scaled up and positive impacts were documented relatively quickly. All three programs had strong political support and clear and transparent governance structures, including accountability and social participation mechanisms, which might explain their success and sustainability. Conclusions CCTs in Latin America have had a positive impact on child health and nutrition outcomes among the poorest families. A key challenge for the future is to reform these programs to help families move out of not only extreme poverty but all poverty in order to lead healthy and productive lives, as called for in the post-2105 Sustainable Development Goals.

RESUMEN Objetivo (1) Describir los beneficios, requisitos, cobertura, financiamiento, objetivos, gobernanza y estructura de programas bien consolidados de transferencias de efectivo condicionadas (TEC) en América Latina y (2) determinar su efecto en la salud y el estado nutricional de los niños menores de 5 años. Métodos Se llevó a cabo una revisión realista. Se incluyeron en ella los programas de TEC que satisfacían los siguientes criterios de inclusión: (1) programa de alcance nacional en curso; (2) cobertura de 50% de la población destinataria como mínimo; (3) funcionamiento en gran escala sin interrupción durante 10 años o más; (4) descripción explícita de la estructura, fuentes de financiamiento y gobernanza; (5) requisitos para la participación basados en criterios de salud y nutrición, así como de educación; y (6) disponibilidad de estudios de evaluación de efectos con indicadores de salud, desarrollo o estado nutricional en niños menores de 5 años. Tres programas de TEC (uno en el Brasil, uno en Colombia y otro en México) satisficieron estos criterios. Resultados Hay pruebas contundentes de que los tres programas de TEC seleccionados para la revisión tuvieron efectos favorables en la salud y el estado nutricional de los niños en sus respectivos países. En los tres países los programas se ampliaron y los efectos positivos se documentaron con relativa rapidez. Los tres programas gozaron de un sólido apoyo político y tuvieron estructuras de gobernanza explícitas y transparentes con mecanismos de rendición de cuentas y de participación social, lo cual podría explicar sus buenos resultados y sostenibilidad. Conclusiones En América Latina, las TEC han tenido un efecto favorable en la salud de los niños y en el estado nutricional de las familias más pobres. Un reto para el futuro estriba en reformar estos programas para ayudar a las familias a salir no solo de la extrema pobreza, sino de la pobreza en general a fin de que puedan llevar vidas saludables y productivas, en conformidad con los Objetivos de Desarrollo Sostenible para después del 2015.

Nutrition situation in Latin America and the Caribbean: current scenario, past trends, and data gaps / Situación nutricional en América Latina y el Caribe: panorama actual, tendencias y brechas en la información

ABSTRACT Objective To determine the current nutritional status in Latin America and the Caribbean (LAC) and identify data gaps and trends in nutrition surveillance. Methods A systematic Internet search was conducted to identify official sources that allowed for monitoring of LAC countries’ nutritional status, including progress toward World Health Organization Global Nutrition Targets 2025. Reports from national nutrition surveillance systems and reports on nationally representative surveys were collected and collated to 1) analyze nutritional status, based on life-course anthropometric indicators and biomarkers, and 2) identify gaps in data availability and trends in nutritional deficiencies. Information on iron, vitamin A, iodine, folate, and vitamin B12 deficiency was also collected and collated. Results Twenty-two of the 46 LAC countries/territories (48%) had information on undernutrition (stunting, underweight, and wasting) in children under 5 years old and women of reproductive age (WRA). Seventeen countries (38%) had information on anemia in children under 5 years old and WRA, and 12 (27%) had information on anemia in pregnant women. Although overall nutritional status has improved in the past few decades in all countries in the region, some LAC countries still had a high prevalence of stunting and anemia in children and WRA. Overweight affected at least 50% of WRA in nine countries with available data, and was increasing in children. Data for school-age children, adolescents, adult males, and older adults were scarce in the region. Conclusions Overall nutritional status has improved in the LAC countries with available information, but more efforts are needed to scale up nutrition-sensitive and nutrition-specific interventions to tackle malnutrition in all its forms, as stunting, anemia, and vitamin A deficiency are still a public health problem in many countries, and overweight is an epidemic. Nutrition information systems are weak in the region, and countries need to strengthen their capacity to monitor nutritional status indicators.

RESUMEN Objetivo Determinar la situación actual de las carencias nutricionales en América Latina y el Caribe (ALC) e identificar las deficiencias en los datos y el curso actual de la vigilancia en materia de nutrición. Métodos Se realizó una búsqueda sistemática de la internet para encontrar fuentes oficiales dedicadas a observar la evolución de la situación nutricional de los países de América Latina y el Caribe, incluidos los avances en relación con las metas mundiales de nutrición fijadas por la Asamblea Mundial de la Salud para el 2025. Se recopilaron y compaginaron los informes de diferentes sistemas de vigilancia nutricional nacionales y de encuestas representativas de alcance nacional con el fin de: (1) analizar la situación nutricional con respecto a indicadores antropométricos y marcadores biológicos para todas las etapas de la vida y (2) detectar brechas en la disponibilidad de datos y observar la evolución de las carencias nutricionales. También se recopiló y compaginó información relativa a la carencia de hierro, vitamina A, yodo, folato y vitamina B12. Resultados Veintidós países de América Latina y el Caribe (48%) contaban con información acerca de la desnutrición (retraso del crecimiento, peso inferior al normal y emaciación) en niños menores de 5 años de edad, niños en edad escolar, adolescentes y mujeres en edad fecunda (MEF). Diecisiete países (38%) tenían información sobre la anemia en niños menores de 5 años; 12 (27%) la tenían sobre la anemia en MEF. Aunque la situación nutricional en general ha mejorado en los últimos decenios en todos los países de la Región, algunos países de América Latina y el Caribe siguen teniendo una alta prevalencia de retraso del crecimiento y anemia en niños y MEF. El sobrepeso afectaba a por lo menos 50% de las MEF en nueve de los países que poseían datos y estaba aumentando en los niños. En la Región hay pocos datos relativos a los niños en edad escolar, los adolescentes, los hombres adultos y las personas de edad. Conclusiones La situación nutricional en general ha mejorado en los países de América Latina y el Caribe para los cuales se cuenta con información, pero hay que tomar más medidas para incrementar las intervenciones relacionadas de manera tangencial o directa con la nutrición a fin de combatir la desnutrición en todas sus manifestaciones, habida cuenta de que el retraso del crecimiento, la anemia y la carencia de vitamina A siguen siendo problemas de salud pública en muchos países y que el sobrepeso constituye una epidemia. Los sistemas de información nutricional de la Región son pobres y los países tienen que fortalecer su capacidad para vigilar los indicadores de la situación nutricional.

Mapping of nutrition and sectoral policies addressing malnutrition in Latin America / Mapeo de las políticas alimentarias y sectoriales orientadas a combatir la malnutrición en América Latina

ABSTRACT Objective To map existing policies addressing malnutrition in all its forms in Latin America and identify gaps in enabling environments supporting the five priority lines of action outlined in the World Health Organization Comprehensive Implementation Plan on Maternal, Infant and Young Child Nutrition (CIP) approved in 2014. Methods This descriptive study consisted of a systematic Internet search for and mapping of publicly available nutrition-related and sectoral policies already in place to address malnutrition in all its forms in 18 Latin American countries (Argentina, Belize, Bolivia, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, and Uruguay). The policies were described in documents retrieved from the websites of ministries of health, education, agriculture, labor, and development; the national congress; and other government agencies. Results All 18 countries had relevant policies to address malnutrition, especially undernutrition and micronutrient deficiencies, but only a few had policies to address overweight and obesity. Nutrition actions were incorporated in food and nutrition security and social protection policies in all 18 countries, and were part of education, environment, agricultural, development, and/or employment policies in some countries. Information on human and financial resources assigned to nutrition was not available through the search strategies used in the study. Conclusions All 18 countries included in this review had established enabling environments to support CIP implementation. However, each of the 18 countries needs to develop integrated policies for the promotion of nutrition and prevention of noncommunicable diseases through cross-sector involvement and multi-stakeholder collaboration.

Resumen Objetivo Hacer un mapeo de las políticas que existen para combatir la malnutrición en todas sus formas en América Latina y encontrar las brechas que pueda haber en los ambientes propicios para la aplicación de las cinco líneas de acción prioritarias descritas en el Plan de aplicación integral sobre nutrición materna, del lactante y del niño pequeño de la Organización Mundial de la Salud, aprobado en el 2014. Métodos El presente estudio descriptivo consistió en una búsqueda sistemática de la Internet y en un mapeo de las políticas nutricionales y sectoriales a disposición del público que ya se han adoptado para combatir el problema de la malnutrición en todas sus formas en 18 países latinoamericanos (Argentina, Belice, Bolivia, Brasil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, México, Nicaragua, Panamá, Paraguay, Perú, República Dominicana y Uruguay). Las políticas estaban descritas en diversos documentos que se obtuvieron de los sitios web de los ministerios de salud, educación, agricultura y ganadería, trabajo y desarrollo; del congreso nacional; y de otras dependencias gubernamentales. Resultados Los 18 países tenían políticas para combatir la malnutrición, especialmente la desnutrición y las carencias de micronutrientes, pero solo unos cuantos tenían políticas relativas al sobrepeso y la obesidad. Diversas medidas de tipo alimentario estaban incorporadas en las políticas de seguridad alimentaria y nutricional y en las de protección social en los 18 países, y en algunos países formaban parte de las políticas educativas, medioambientales, agropecuarias, de desarrollo y laborales. No se encontró ninguna información acerca de los recursos humanos y económicos asignados al área de la nutrición mediante las estrategias de búsqueda que se usaron en el estudio. Conclusiones Los 18 países incluidos en esta revisión habían creado ambientes propicios para la puesta en práctica del Plan de aplicación integral sobre nutrición materna, del lactante y del niño pequeño. Sin embargo, cada uno de ellos tiene que formular políticas integradas para la promoción de la buena nutrición y la prevención de las enfermedades no transmisibles mediante la participación intersectorial y la colaboración entre los diversos interesados directos.

Tackling malnutrition in Latin America and the Caribbean: challenges and opportunities / La lucha contra la malnutrición en América Latina y el Caribe: retos y oportunidades

Undernutrition and micronutrient deficiencies are still a public health problem in Latin America and the Caribbean (LAC), and overweight and obesity have reached epidemic proportions. To assess the nutrition landscape in LAC countries and guide future nutrition efforts and investments, the Pan American Health Organization and the Micronutrient Initiative joined efforts to 1) identify information gaps and describe the current nutritional situation in the region; 2) map existing policies to address malnutrition in Latin America; 3) describe the impact of conditional cash transfer programs (CCTs) on nutrition and health outcomes; and 4) identify the challenges and opportunities to address malnutrition in the region. This article summarizes the methods and key findings from that research and describes the current challenges and opportunities in addressing malnutrition in the LAC region. LAC countries have advanced in reducing undernutrition and micronutrient deficiencies, but important gaps in information are a major concern. These countries have policies to address undernutrition and micronutrient deficiencies, but comprehensive and intersectoral policies to tackle obesity are lacking. CCTs in Brazil, Colombia, and Mexico have been reported to have a positive impact on child nutrition and health outcomes, providing an opportunity to integrate nutrition actions in intersectoral platforms. The current epidemiological situation and policy options offer an opportunity for countries, technical agencies, donors, and other stakeholders to jointly scale up nutrition actions. This can support the development of comprehensive and intersectoral policies to tackle the double burden of malnutrition, strengthen national nutrition surveillance systems, incorporate monitoring and evaluation as systematic components of policies and programs, document and increase investments in nutrition, and assess the effectiveness of such policies to support political commitment and guarantee sustainability.

La desnutrición y las carencias de micronutrientes siguen siendo un problema de salud pública en América Latina y el Caribe y el sobrepeso y la obesidad han alcanzado proporciones epidémicas. Para evaluar el panorama nutricional en los países de América Latina y el Caribe y marcar el rumbo de futuras iniciativas e inversiones en el área de la nutrición, la Organización Panamericana de la Salud y la Iniciativa de Micronutrientes aunaron esfuerzos a fin de a) identificar brechas de información y describir la situación nutricional actual en la Región; b) mapear las políticas existentes para combatir la malnutrición en América Latina; c) describir los efectos que tienen los programas de transferencias de efectivo condicionadas sobre la nutrición y la salud; y d) determinar los retos y oportunidades que encierra la lucha contra la malnutrición en la Región. En el presente artículo se resumen los métodos usados en esa investigación y sus principales resultados, y se describen los retos y oportunidades que plantea actualmente la lucha contra la malnutrición en América Latina y el Caribe. Los países de la Región han avanzado en sus esfuerzos por reducir la desnutrición y las carencias de micronutrientes, pero hay grandes lagunas de información que constituyen un problema serio. Dichos países tienen políticas dirigidas a combatir la desnutrición y las carencias de micronutrientes, pero no tienen políticas integrales e intersectoriales para hacer frente al problema de la obesidad. Se ha señalado que en Brasil, Colombia y México las transferencias monetarias condicionadas tienen un efecto beneficioso sobre el estado nutricional y de salud del niño, lo que representa una oportunidad para integrar intervenciones nutricionales en las plataformas intersectoriales. La situación epidemiológica y las opciones normativas del momento actual brindan a los países, a los organismos técnicos, a los donantes y a otros interesados directos la oportunidad de ampliar, en conjunto, el alcance de las medidas en materia de nutrición. Esto puede estimular la formulación de políticas integrales e intersectoriales para combatir la doble carga de malnutrición, fortalecer los sistemas nacionales de vigilancia nutricional, incorporar el seguimiento y la evaluación como componentes sistemáticos de las políticas y programas, documentar e incrementar la inversión en el área de la nutrición y evaluar la eficacia de estas políticas para fomentar el compromiso político y garantizar la sostenibilidad.

Conditional cash transfer programs and the health and nutrition of Latin American children / Los programas de transferencias de efectivo condicionadas y la salud y alimentación de los niños latinoamericanos

Objective. To 1) describe the benefits, conditions, coverage, funding, goals, governance, and structure of well-established conditional cash transfer programs (CCTs) in Latin America and 2) identify their health and nutritional impacts among children under 5 years old. Methods. A realist review was conducted. CCTs were included if they met the following inclusion criteria: 1) current national-level program; 2) coverage of at least 50% of the target population; 3) continuous operation at scale for 10+ years; 4) clear description of structure, funding sources, and governance; 5) both health/nutrition- and education-related conditions for participation; and 6) available impact evaluation studies with health, development, and/or nutrition indicators among children under 5 years old. Three CCTs (one each in Brazil, Colombia, and Mexico) met the criteria. Results. There was consistent evidence that the three CCTs selected for review had positive impacts on child health and nutrition outcomes in their respective countries. In all three countries, the programs were scaled up and positive impacts were documented relatively quickly. All three programs had strong political support and clear and transparent governance structures, including accountability and social participation mechanisms, which might explain their success and sustainability. Conclusions. CCTs in Latin America have had a positive impact on child health and nutrition outcomes among the poorest families. A key challenge for the future is to reform these programs to help families move out of not only extreme poverty but all poverty in order to lead healthy and productive lives, as called for in the post-2105 Sustainable Development Goals.

Objetivo. (1) Describir los beneficios, requisitos, cobertura, financiamiento, objetivos, gobernanza y estructura de programas bien consolidados de transferencias de efectivo condicionadas (TEC) en América Latina y (2) determinar su efecto en la salud y el estado nutricional de los niños menores de 5 años. Métodos. Se llevó a cabo una revisión realista. Se incluyeron en ella los programas de TEC que satisfacían los siguientes criterios de inclusión: (1) programa de alcance nacional en curso; (2) cobertura de 50% de la población destinataria como mínimo; (3) funcionamiento en gran escala sin interrupción durante 10 años o más; (4) descripción explícita de la estructura, fuentes de financiamiento y gobernanza; (5) requisitos para la participación basados en criterios de salud y nutrición, así como de educación; y (6) disponibilidad de estudios de evaluación de efectos con indicadores de salud, desarrollo o estado nutricional en niños menores de 5 años. Tres programas de TEC (uno en el Brasil, uno en Colombia y otro en México) satisficieron estos criterios. Resultados. Hay pruebas contundentes de que los tres programas de TEC seleccionados para la revisión tuvieron efectos favorables en la salud y el estado nutricional de los niños en sus respectivos países. En los tres países los programas se ampliaron y los efectos positivos se documentaron con relativa rapidez. Los tres programas gozaron de un sólido apoyo político y tuvieron estructuras de gobernanza explícitas y transparentes con mecanismos de rendición de cuentas y de participación social, lo cual podría explicar sus buenos resultados y sostenibilidad. Conclusiones. En América Latina, las TEC han tenido un efecto favorable en la salud de los niños y en el estado nutricional de las familias más pobres. Un reto para el futuro estriba en reformar estos programas para ayudar a las familias a salir no solo de la extrema pobreza, sino de la pobreza en general a fin de que puedan llevar vidas saludables y productivas, en conformidad con los Objetivos de Desarrollo Sostenible para después del 2015.

Mapping of nutrition and sectoral policies addressing malnutrition in Latin America / Mapeo de las políticas alimentarias y sectoriales orientadas a combatir la malnutrición en América Latina

Objective. To map existing policies addressing malnutrition in all its forms in Latin America and identify gaps in enabling environments supporting the five priority lines of action outlined in the World Health Organization Comprehensive Implementation Plan on Maternal, Infant and Young Child Nutrition (CIP) approved in 2014. Methods. This descriptive study consisted of a systematic Internet search for and mapping of publicly available nutrition-related and sectoral policies already in place to address malnutrition in all its forms in 18 Latin American countries (Argentina, Belize, Bolivia, Brazil, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, and Uruguay). The policies were described in documents retrieved from the websites of ministries of health, education, agriculture, labor, and development; the national congress; and other government agencies. Results. All 18 countries had relevant policies to address malnutrition, especially undernutrition and micronutrient deficiencies, but only a few had policies to address overweight and obesity. Nutrition actions were incorporated in food and nutrition security and social protection policies in all 18 countries, and were part of education, environment, agricultural, development, and/or employment policies in some countries. Information on human and financial resources assigned to nutrition was not available through the search strategies used in the study. Conclusions. All 18 countries included in this review had established enabling environments to support CIP implementation. However, each of the 18 countries needs to develop integrated policies for the promotion of nutrition and prevention of noncommunicable diseases through cross-sector involvement and multi-stakeholder collaboration.

Objetivo. Hacer un mapeo de las políticas que existen para combatir la malnutrición en todas sus formas en América Latina y encontrar las brechas que pueda haber en los ambientes propicios para la aplicación de las cinco líneas de acción prioritarias descritas en el Plan de aplicación integral sobre nutrición materna, del lactante y del niño pequeño de la Organización Mundial de la Salud, aprobado en el 2014. Métodos. El presente estudio descriptivo consistió en una búsqueda sistemática de la Internet y en un mapeo de las políticas nutricionales y sectoriales a disposición del público que ya se han adoptado para combatir el problema de la malnutrición en todas sus formas en 18 países latinoamericanos (Argentina, Belice, Bolivia, Brasil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, México, Nicaragua, Panamá, Paraguay, Perú, República Dominicana y Uruguay). Las políticas estaban descritas en diversos documentos que se obtuvieron de los sitios web de los ministerios de salud, educación, agricultura y ganadería, trabajo y desarrollo; del congreso nacional; y de otras dependencias gubernamentales. Resultados. Los 18 países tenían políticas para combatir la malnutrición, especialmente la desnutrición y las carencias de micronutrientes, pero solo unos cuantos tenían políticas relativas al sobrepeso y la obesidad. Diversas medidas de tipo alimentario estaban incorporadas en las políticas de seguridad alimentaria y nutricional y en las de protección social en los 18 países, y en algunos países formaban parte de las políticas educativas, medioambientales, agropecuarias, de desarrollo y laborales. No se encontró ninguna información acerca de los recursos humanos y económicos asignados al área de la nutrición mediante las estrategias de búsqueda que se usaron en el estudio. Conclusiones. Los 18 países incluidos en esta revisión habían creado ambientes propicios para la puesta en práctica del Plan de aplicación integral sobre nutrición materna, del lactante y del niño pequeño. Sin embargo, cada uno de ellos tiene que formular políticas integradas para la promoción de la buena nutrición y la prevención de las enfermedades no transmisibles mediante la participación intersectorial y la colaboración entre los diversos interesados directos.

Nutrition situation in Latin America and the Caribbean: current scenario, past trends, and data gaps / Situación nutricional en América Latina y el Caribe: panorama actual, tendencias y brechas en la información

Objective. To determine the current nutritional status in Latin America and the Caribbean (LAC) and identify data gaps and trends in nutrition surveillance. Methods. A systematic Internet search was conducted to identify official sources that allowed for monitoring of LAC countries’ nutritional status, including progress toward World Health Organization Global Nutrition Targets 2025. Reports from national nutrition surveillance systems and reports on nationally representative surveys were collected and collated to 1) analyze nutritional status, based on life-course anthropometric indicators and biomarkers, and 2) identify gaps in data availability and trends in nutritional deficiencies. Information on iron, vitamin A, iodine, folate, and vitamin B12 deficiency was also collected and collated. Results. Twenty-two of the 46 LAC countries/territories (48%) had information on undernutrition (stunting, underweight, and wasting) in children under 5 years old and women of reproductive age (WRA). Seventeen countries (38%) had information on anemia in children under 5 years old and WRA, and 12 (27%) had information on anemia in pregnant women. Although overall nutritional status has improved in the past few decades in all countries in the region, some LAC countries still had a high prevalence of stunting and anemia in children and WRA. Overweight affected at least 50% of WRA in nine countries with available data, and was increasing in children. Data for school-age children, adolescents, adult males, and older adults were scarce in the region. Conclusions. Overall nutritional status has improved in the LAC countries with available information, but more efforts are needed to scale up nutrition-sensitive and nutrition-specific interventions to tackle malnutrition in all its forms, as stunting, anemia, and vitamin A deficiency are still a public health problem in many countries, and overweight is an epidemic. Nutrition information systems are weak in the region, and countries need to strengthen their capacity to monitor nutritional status indicators.

Objetivo. Determinar la situación actual de las carencias nutricionales en América Latina y el Caribe (ALC) e identificar las deficiencias en los datos y el curso actual de la vigilancia en materia de nutrición. Métodos. Se realizó una búsqueda sistemática de la internet para encontrar fuentes oficiales dedicadas a observar la evolución de la situación nutricional de los países de América Latina y el Caribe, incluidos los avances en relación con las metas mundiales de nutrición fijadas por la Asamblea Mundial de la Salud para el 2025. Se recopilaron y compaginaron los informes de diferentes sistemas de vigilancia nutricional nacionales y de encuestas representativas de alcance nacional con el fin de: (1) analizar la situación nutricional con respecto a indicadores antropométricos y marcadores biológicos para todas las etapas de la vida y (2) detectar brechas en la disponibilidad de datos y observar la evolución de las carencias nutricionales. También se recopiló y compaginó información relativa a la carencia de hierro, vitamina A, yodo, folato y vitamina B12. Resultados. Veintidós países de América Latina y el Caribe (48%) contaban con información acerca de la desnutrición (retraso del crecimiento, peso inferior al normal y emaciación) en niños menores de 5 años de edad, niños en edad escolar, adolescentes y mujeres en edad fecunda (MEF). Diecisiete países (38%) tenían información sobre la anemia en niños menores de 5 años; 12 (27%) la tenían sobre la anemia en MEF. Aunque la situación nutricional en general ha mejorado en los últimos decenios en todos los países de la Región, algunos países de América Latina y el Caribe siguen teniendo una alta prevalencia de retraso del crecimiento y anemia en niños y MEF. El sobrepeso afectaba a por lo menos 50% de las MEF en nueve de los países que poseían datos y estaba aumentando en los niños. En la Región hay pocos datos relativos a los niños en edad escolar, los adolescentes, los hombres adultos y las personas de edad. Conclusiones. La situación nutricional en general ha mejorado en los países de América Latina y el Caribe para los cuales se cuenta con información, pero hay que tomar más medidas para incrementar las intervenciones relacionadas de manera tangencial o directa con la nutrición a fin de combatir la desnutrición en todas sus manifestaciones, habida cuenta de que el retraso del crecimiento, la anemia y la carencia de vitamina A siguen siendo problemas de salud pública en muchos países y que el sobrepeso constituye una epidemia. Los sistemas de información nutricional de la Región son pobres y los países tienen que fortalecer su capacidad para vigilar los indicadores de la situación nutricional.

Effect of zinc on efficacy of iron supplementation in improving iron and zinc status in women.

Iron and zinc may interact in micronutrient supplements and thereby decrease efficacy. We investigated interactive effects of combined zinc and iron supplementation in a randomized controlled trial conducted in 459 Guatemalan women. Four groups were supplemented for 12 weeks: (1) weekly iron and folic acid (IFA); (2) weekly IFA and 30 mg zinc; (3) daily IFA; (4) daily IFA and 15 mg zinc. Effects were assessed by generalized linear regression. Baseline hemoglobin (Hb) concentration was 137.4 ± 15.5 g/L, 13% were anemic and 54% had zinc deficiency. Hb cconcentrations were similar by supplement type, but Hb concentrations improved significantly in anemic women at baseline (increase of 21.8 g/L). Mean percentage changes in serum ferritin were significantly higher in daily compared to weekly supplemented groups (86% versus 32%). The addition of zinc to IFA supplements had no significant impact on iron or zinc status. In conclusion, adding zinc to IFA supplements did not modify efficacy on iron status or improve zinc status, but daily supplementation was more efficacious than weekly in improving iron stores.

Anemia in Latin America and the Caribbean, 2009. Situation analysis, trends, and implications for public health programming / Anemia en América Latina y el Caribe, 2009. Análisis de la situación, tendencias, e implicancias para la programación en salud pública

[Executive summary] This report presents aggregated results on the prevalence of anemia and iron deficiency in countries of Latin America and Caribbean during the period 1981–2009. It provides the most recent data available on the prevalence of anemia at the national, subregional, and regional levels; trends; and estimated numbers of affected children and affected women of childbearing age. It summarizes the current situation of policies and programs to prevent and treat anemia and iron deficiency, and discusses their strengths and weaknesses. A joint initiative of the Micronutrient Initiative (MI) of Canada and the Pan American Health Organization (PAHO), the information in this report will be useful for governments, public health authorities, national policy makers, and other stakeholders interested in preventing anemia and iron deficiency.

Micronutrient supplementation may reduce symptoms of depression in Guatemalan women.

Evidence for the impact of micronutrient supplementation trials on depression in women from developing countries is limited. This study examines this association and compares the impact of weekly versus daily combinations of micronutrient supplements on symptoms of depression. A randomized, positive-controlled trial was conducted in Guatemala. A total of 459 women were assigned randomly to 4 groups to receive weekly (5,000 or 2,800 microg) or daily (400 or 200 microg) folic acid (FA) plus iron, zinc and vitamin B-12 for 12 weeks. Depression was measured using the Center for Epidemiologic Studies-Depression 20-item Scale (CES-D). A score = 16 was used as an indication of depression. The association between micronutrient status and depression was assessed using baseline data. Generalized linear regression models were used to assess treatment effects. The baseline mean CES-D score was 17.1 +/- 8.5 and the prevalence of depression was 49.3%. Women in the lowest tertile of red blood cell folate (RBC) were 1.7 times more likely to be depressed than those in the highest tertile (OR=1.71; 95% CI: 0.91, 3.18). There were no associations between depression and serum folate, homocysteine, vitamin B-12, hemoglobin, ferritin or zinc (p > 0.05). Mean depression scores decreased by 2.3 points post-intervention and depression decreased to 37.7%, with no differences in degree of improvement by group (p = 0.64). Low RBC folate was associated with elevated symptoms of depression at baseline. Supplementation with FA-containing micronutrients may be equally efficacious in improving symptoms of depression when provided daily or weekly. Our findings that poor folate status may increase depression needs to be further investigated.

Micronutrient supplementation may reduce symptoms of depression in Guatemalan women / Potencial reducción de síntomas de depresión en mujeres en Guatemala mediante la suplementación con micronutrientes

Evidence for the impact of micronutrient supplementation trials on depression in women from developing countries is limited. This study examines this association and compares the impact of weekly versus daily combinations of micronutrient supplements on symptoms of depression. A randomized, positive-controlled trial was conducted in Guatemala. A total of 459 women were assigned randomly to 4 groups to receive weekly (5,000 or 2,800µg) or daily (400 or 200 µg) folic acid (FA) plus iron, zinc and vitamin B-12 for 12 weeks. Depression was measured using the Center for Epidemiologic Studies-Depression 20-item Scale (CES-D). A score=16 was used as an indication of depression. The association between micronutrient status and depression was assessed using baseline data. Generalized linear regression models were used to assess treatment effects. The baseline mean CES-D score was 17.1±8.5 and the prevalence of depression was 49.3 percent. Women in the lowest tertile of red blood cell folate (RBC) were 1.7 times more likely to be depressed than those in the highest tertile (OR=1.71; 95 percent CI: 0.91, 3.18). There were no associations between depression and serum folate, homocysteine, vitamin B-12, hemoglobin, ferritin or zinc (p > 0.05). Mean depression scores decreased by 2.3 points post-intervention and depression decreased to 37.7 percent, with no differences in degree of improvement by group (p = 0.64). Low RBC folate was associated with elevated symptoms of depression at baseline. Supplementation with FA-containing micronutrients may be equally efficacious in improving symptoms of depression when provided daily or weekly. Our findings that poor folate status may increase depression needs to be further investigated.

La evidencia del impacto de ensayos de suplementación con micronutrientes en mujeres con depresión en países en desarrollo es limitada. El presente estudio examina esta asociación y compara el impacto de varias combinaciones de micronutrientes proporcionadas de manera semanal o diaria en los síntomas de depresión, utilizando datos de un ensayo controlado (control positivo) y aleatorizado realizado en Guatemala. Un total de 459 mujeres fueron asignadas al azar entre cuatro grupos para recibir semanalmente (5.000 o 2.800 µg) o diariamente (400 o 200 µg) de ácido fólico (AF) combinado con hierro, cinc y vitamina B-12 durante 12 semanas. La depresión fue medida utilizando la escala de 20 ítems del Centro de Estudios Epidemiológicos de la Depresión (CES-D). Un puntaje =16 fue considerado indicativo de depresión. Se evaluó la asociación entre el nivel de micronutrientes en sangre y depresión utilizando datos provistos por la línea de base. Se utilizaron modelos de Regresión Linear Generalizada para evaluar los efectos del tratamiento. La media del puntaje de la línea de base CES-D fue de 17,1±8,5 y la prevalencia de depresión fue del 49,3 por ciento. Las mujeres en el tercil más bajo del folato eritrocitario presentaron 1,7 veces más probabilidades de estar deprimidas que aquellas en el tercil más alto (OR=1,71; 95 por ciento CI: 0,91, 3,18). No se encontró asociación entre depresión y folato sérico, homocisteína, vitamina B-12, hemoglobina, ferritina sérica o cinc (p>0,05). Los puntajes de depresión medios post-intervención disminuyeron en 2.3 puntos y la depresión se redujo a 37,7 por ciento, sin presentar diferencias en el grado de mejoría por grupo (p=0,64). En síntesis, el bajo nivel de folato eritrocitario se asoció a síntomas elevados depresivos en la línea de base. La suplementación con AF sumado a otros micronutrientes puede ser igualmente eficaz en la mejora de síntomas depresivos cuando provista diaria o semanalmente...