The impact and implementation of an mHealth intervention to improve infant and young child feeding in Senegal: IIMAANJE protocol for a cluster randomized control trial.

Behavior change communication (BCC) strategies have the potential to improve infant feeding and nutrition outcomes among infants and young children in low- and middle-income countries. More recently, there has been a shift toward the adoption of mHealth interventions-the use of mobile phones to transmit health-related information or direct care-to promote recommended BCC strategies among the caregivers of infants and young children. In Senegal, most infants and young children are not fed according to recommended practices leading to a high prevalence of undernutrition and micronutrient deficiencies. The aims of this cluster randomized control trial, using an effectiveness-implementation (type 1) hybrid design, were to: (1) determine the impact of an mHealth IYCF intervention on IYCF practices and nutrition outcomes; and (2) examine the implementation, costs, and opportunities for scaling up the mHealth messaging intervention. The trial was conducted in three regions in Senegal (Thies, Fatick, Diourbel) with 488 mother, father and children (6-23 months) triads. The intervention included 8 scripted messages, that underwent cognitive testing prior to the intervention implementation, and 8 unscripted messages from positive deviants. One voice message and one text message were sent each week to members of our experimental group for a 16-week period. The impact of the intervention was assessed through a household survey, 24-h dietary recall, and hemoglobin measurements before and after the intervention implementation. The primary outcomes were minimal acceptable diet (MAD) and anemia. We also included a total of 54 participants in nine focus groups held with mothers and fathers and semi-structured interviews with Badienou Gox (i.e., community health workers) (n = 6) and national partners and program implementers (n = 6) to examine the intervention implementation process. The study was registered prior to data collection on Clinicaltrials.gov (Identifier: NCT05374837).

Leveraging Nutrient-Rich Traditional Foods to Improve Diets among Indigenous Populations in India: Value Chain Analysis of Finger Millet and Kionaar Leaves.

Many indigenous foods are nutrient-rich but are often underutilized even among populations at high risk of malnutrition. The aims of this study were to conduct value chain analysis of one cultivated crop (finger millet among the Munda tribe) and one wild green leafy vegetable (Koinaar leaves among the Sauria Paharia tribe) of two Indigenous communities in Jharkhand state, India and to identify entry points for interventions aimed at supporting production and consumption. Semi-structured interviews were conducted with stakeholders among each tribal group and transcripts were open coded and organized based on key themes across the steps of the value chain for each food independently. Improved storage techniques and infrastructure, machinery for processing and improved cooking fuel would help reduce barriers across the finger millet supply chain related to postharvest losses, processing labor and safety concerns related to cooking. For Koinaar leaves, improving drying techniques to increase consumption across seasons and providing training and support to increase opportunities for selling leaves in local markets, where participants mentioned potential language barriers, could strengthen the supply chain. Improving extension services and focusing beyond production has potential to improve the production and consumption of both nutrient-rich crops among Indigenous communities in India.

Food Environments and Their Influence on Food Choices: A Case Study in Informal Settlements in Nairobi, Kenya.

The food environments that people have access to shape their food choices. The purpose of this study was to use mixed methods to characterize the external food environment in informal settlements in Nairobi, Kenya and to examine the individual factors that influence the way in which women interact with those environments to make food choices. We used a combination of food environment assessments (vendor mapping, collection of food prices, food quality assessments) and five focus group discussions with women (n = 26) in four villages within two informal settlements in Nairobi (Mukuru and Kibera) to better understand the drivers of food choice. We found a large number (n = 1163) of vendors selling a variety of food within the settlements. The highest number of vendors were selling fruits and/or vegetables; however, there was limited diversity of fruits available. Animal-source foods were considered relatively expensive as compared to plant-based foods, including prepared fried snacks. We found that the way women interacted with their food environments was influenced by individual factors such as income, time, convenience, and preferences. Our findings suggest that interventions targeting both the external food environment as well as individual factors such as income will be necessary to support healthy diets among low-income populations living in informal settlements in Kenya.

The Influence of Food Environments on Food Security Resilience during the COVID-19 Pandemic: An Examination of Urban and Rural Difference in Kenya.

Hunger and food insecurity has worsened due to the COVID-19 pandemic. The types of food environments (e.g., natural/built) that people can access may improve household resilience to food-system shocks. This paper examines (1) urban and rural differences in the perceived influence of the COVID-19 pandemic on agricultural, livelihoods, food environment attributes, diets; and (2) whether access to different food environments was associated with food security. A two-part telephonic survey (COVID-19 Surveillance Community Action Network Food Systems Tool and Household Food Insecurity Access Scale) was conducted in Western Kenya (n = 173) and an informal settlement in Nairobi (n = 144) in January/February 2021. Limitations on the acquisition of farm inputs and movement restrictions had an adverse impact on agriculture and food sales. Urban residents reported a more significant impact on livelihoods (97% vs. 87%, p < 0.001), with day laborers being the most impacted. Rural respondents reported access to significantly more food environments and lower food insecurity. Multiple linear regression analysis revealed that younger respondents, ≤1 income source, had more difficulty acquiring food, decreased access to cultivated environments, and increased access to informal markets were predictors for higher food insecurity. These data indicate that access to specific types of food environments may improve household resilience.

Building climate-sensitive nutrition programmes.

The food system and climate are closely interconnected. Although most research has focused on the need to adopt a plant-based diet to help mitigate climate change, there is also an urgent need to examine the effects of climate change on food systems to adapt to climate change. A systems approach can help identify the pathways through which climate influences food systems, thereby ensuring that programmes combating malnutrition take climate into account. Although little is known about how climate considerations are currently incorporated into nutrition programming, climate information services have the potential to help target the delivery of interventions for at-risk populations and reduce climate-related disruption during their implementation. To ensure climate services provide timely information relevant to nutrition programmes, it is important to fill gaps in our knowledge about the influence of climate variability on food supply chains. A proposed roadmap for developing climate-sensitive nutrition programmes recommends: (i) research aimed at achieving a better understanding of the pathways through which climate influences diet and nutrition, including any time lags; (ii) the identification of entry points for climate information into the decision-making process for nutrition programme delivery; and (iii) capacity-building and training programmes to better equip public health practitioners with the knowledge, confidence and motivation to incorporate climate resilience into nutrition programmes. With sustained investment in capacity-building, data collection and analysis, climate information services can be developed to provide the data, analyses and forecasts needed to ensure nutrition programmes target their interventions where and when they are most needed.

Les systèmes alimentaire et climatique sont étroitement liés. Bien que la plupart des recherches se concentrent sur le besoin d'adopter un régime végétarien pour contribuer à atténuer le changement climatique, il est également urgent d'examiner les effets de ce changement climatique sur les systèmes alimentaires afin de les adapter en conséquence. Une approche systémique peut aider à déterminer dans quelle mesure le climat influence les systèmes alimentaires, et dès lors à faire en sorte que les programmes de lutte contre la malnutrition en tiennent compte. On ignore encore sous quelle forme les considérations climatiques sont actuellement intégrées dans les programmes de nutrition. Cependant, les services climatologiques peuvent contribuer à cibler le déploiement d'interventions pour les populations à risque, ainsi qu'à réduire les perturbations causées par le climat au cours de leur mise en œuvre. Pour veiller à ce que ces services fournissent à point nommé des informations utiles aux programmes de nutrition, il faut impérativement combler le manque de connaissances en matière d'impact des variations climatiques sur les chaînes d'approvisionnement alimentaire. La feuille de route proposée pour l'élaboration de programmes de nutrition adaptés au changement climatique recommande: (i) de mener des recherches visant à mieux comprendre dans quelle mesure le climat influence l'alimentation et la nutrition, en tenant compte des éventuels décalages temporelshoraires; (ii) d'identifier les points d'entrée des informations relatives au climat dans le processus décisionnel de déploiement des programmes alimentaires; et enfin, (iii) de développer des plans de formation et de renforcement des capacités afin que les professionnels de la santé publique disposent des connaissances, de la confiance et de la motivation nécessaires pour intégrer l'adaptation au changement climatique dans les programmes de nutrition. En investissant durablement dans le renforcement des capacités ainsi que dans la collecte et l'analyse de données, il est possible d'instaurer des services climatologiques qui communiqueront les informations, analyses et prévisions requises pour que les programmes de nutrition organisent leurs actions à l'endroit et au moment où elles deviennent indispensables.

El sistema alimentario y el clima están muy interconectados. Aunque la mayoría de las investigaciones se han centrado en la necesidad de adoptar una dieta basada en el consumo de plantas para ayudar a mitigar el cambio climático, también es urgente analizar los efectos del cambio climático en los sistemas alimentarios para adaptarse al mismo. Un enfoque sistémico puede ayudar a identificar las vías a través de las que el clima influye en los sistemas alimentarios, garantizando así que los programas de lucha contra la malnutrición tengan en cuenta el clima. Si bien se sabe poco sobre cómo se incorporan en la actualidad los aspectos climáticos a los programas de nutrición, los servicios de información climática tienen el potencial de ayudar a orientar las intervenciones hacia las poblaciones de riesgo y a reducir los trastornos relacionados con el clima durante su aplicación. Para garantizar que los servicios climáticos proporcionen información oportuna y relevante a los programas de nutrición, es importante solucionar las carencias de nuestros conocimientos sobre la influencia de la variabilidad climática en las cadenas de suministro de alimentos. Una hoja de ruta propuesta para desarrollar programas de nutrición sensibles al clima recomienda i) la investigación destinada a lograr una mejor comprensión de las vías a través de las que el clima influye en la dieta y en la nutrición, incluidos los retrasos; ii) la identificación de los puntos de entrada de la información sobre el clima en el proceso de toma de decisiones para la ejecución de los programas de nutrición; y iii) los programas de creación de capacidad y formación para preparar mejor a los profesionales de la salud pública con los conocimientos, la confianza y la motivación que permitan incorporar la adaptación al clima en los programas de nutrición. Si se invierte de manera sostenida en la creación de capacidades, la recopilación y el análisis de datos, se pueden desarrollar servicios de información climática que proporcionen los datos, los análisis y las previsiones necesarios para garantizar que los programas de nutrición orienten sus intervenciones donde y cuando más se necesiten.

Drivers of food choice among women living in informal settlements in Nairobi, Kenya.

Suboptimal diets drive the multiple burdens of malnutrition among women living in informal settlements. Women's food choices have important implications for their health, as well as that of their families. The purpose of this study was to examine how food choice decisions might differ across different age groups of women living in informal settlements in Nairobi, Kenya. Using in-depth interviews which incorporated a free-listing task, we determined the factors influencing food choice decisions in women in two informal settlements, Kibera and Mukuru. Among women in all age groups, we found income and food price to be the most salient factors influencing food choice decisions. Differences across age groups regarding food choice considerations included individual preference and quality being more salient factors amongst younger women while household preferences were more salient among older women. Women also reported making trade-offs between food affordability and other factors including time and nutrition, which led to sub-optimal diets. Our findings suggest that interventions in these settings may need to be tailored to specific age groups. Additionally, interventions may need to target both individual factors and the external food environment to help women overcome the trade-offs they often find themselves making in food choice decisions.

Examining the trade-offs of palm oil production and consumption from a sustainable diets perspective: lessons learned from Myanmar.

OBJECTIVE: The aim of this study was to examine the trade-offs related to the production and consumption of palm oil in Myanmar from a sustainable diets perspective. DESIGN: We used an enhanced value chain analysis approach that included semi-structured interviews with key stakeholders; market analyses to assess edible oils in markets and focus groups as well as surveys with consumers to ascertain their perceptions and practices related to edible oils. SETTING: Four settings in Myanmar (upper income urban; lower income urban; middle-income urban; lower income rural). PARTICIPANTS: Key stakeholders (n 12) from government, trade bodies and civil society organisations were included in the interviews. Women from each of the regions participated in four focus groups (n 32), and a convenience sample of male and female consumers participated in the surveys (n 362). RESULTS: We found mistrust of the oil sector overall. Poor production practices, leading to low yields, limit the economic viability of oil palm production in Myanmar and contribute to negative environmental (e.g. deforestation) and social outcomes (e.g. land conflicts). Consumers demonstrated low preferences for palm oil as compared with traditional oils from a taste, health and transparency perspective; however, they indicated that its relative low cost led to its purchase over other oils. CONCLUSIONS: The Burmese example suggests that there may be limited benefits, and significant costs, of investing in palm oil production in regions where there are coordinating disincentives from a sustainable diets perspective. However, if oil palm cultivation is to continue, there are opportunities to improve its economic viability and environmental sustainability.

A focused ethnographic study on the role of health and sustainability in food choice decisions.

In the United States, typical dietary patterns are not necessarily healthy and sustainable. In order to shift diets, we need to provide support to individuals in a way that reflects what matters most to them. In this study, we aimed to identify the considerations that are most important to individuals regarding food-related decisions, and to determine how those considerations relate to specific foods, with a focus on health and environmental sustainability. In a sequential mixed-methods design, we first conducted 27 semi-structured interviews with participants in California and Nebraska. These interviews included a free-listing activity, where we used a technical construct of salience, Smith's S Index, to identify the considerations that were most important to our participants. We followed up with 20 of those participants to complete a pile-sorting survey, where participants sorted and rated 42 food items for price, taste, health, convenience, familiarity, and environmental impact. Our findings showed that the most salient considerations cited by our participants were price, health, taste, and time. There was consensus for how participants rated the foods for price, taste, convenience, and familiarity. However, there was only weak consensus for how participants rated the foods for health impact, and no consensus for how participants rated the foods for environmental impact. There was also disagreement on how to sort new plant-based products intended to replace or substitute meat and other animal-based foods. These findings have implications for how to communicate about healthy and sustainable diets. They highlight conflicting considerations, disagreement in classification of new products, and limited consensus for perceived health and environmental impact of foods, which present challenges to the achievement of diets that are healthy and environmentally sustainable in the United States.

Drawing on Strategic Management Approaches to Inform Nutrition Policy Design: An Applied Policy Analysis for Salt Reduction in Packaged Foods.

BACKGROUND: Nutrition policies to improve the food environment frequently rely on voluntary business action for implementation, many have had mixed success. The aims of this study were to identify key food system drivers influencing the Australian packaged food sector and analyse how these might impact the willingness of food companies to voluntarily reduce salt in packaged foods. METHODS: Business methods formed the basis of this retrospective applied policy analysis of voluntary salt reduction for the period 2013-2016 where the focal policy was the Australian Food and Health Dialogue (2009-2015). The analytical framework included political-legal, economic, social, technological (PEST) external drivers of the food system, and Porter's Five Forces for the competitive drivers of the food system. Documentary data identifying food system drivers affecting the Australian packaged food sector (comprised of the food processing and supermarket industries) were identified through a comprehensive search of the grey and academic literatures. RESULTS: The interplay between external and competitive food system drivers created an environment in which voluntary salt reduction was found to be an uneasy fit. A high cost of doing business, soft growth, intense competition, asymmetry of power in favour of supermarkets, and marginal consumer interest in less salty food were found likely to create commercial disincentives to invest in voluntary salt reduction above more pressing commercial imperatives. Analysis of food manufacturing industries highlighted the highly contextual nature of food system drivers. Opportunities for nutrition policy included: support for 'shared value' in economic discourse; and, leveraging investor, supermarket, and the largely unrealised bargaining power of consumers. CONCLUSION: Business frameworks can provide meaningful insights for nutrition policy on how food system drivers can thwart policy goals. Our analysis highlighted areas to incentivise voluntary action and illustrated the importance of political-legal, economic and consumer strategies for salt reduction.

Rapid tool based on a food environment typology framework for evaluating effects of the COVID-19 pandemic on food system resilience.

The coronavirus disease 2019 (COVID-19) and associated mitigation measures are highlighting resiliency and vulnerability of food systems with consequences for diets, food security, and health outcomes. Frameworks and tools are called for to evaluate impacts of the COVID-19 pandemic as well as identify entry points for implementing preparedness efforts. We support it is critical to adopt a food environment typology framework based on the different types of food environments that people have access to in order to examine how their relationship with food environments shift with disruptions such as COVID-19 and, ultimately impact diets and food security. Here, we provide an overview of applying a food environment typology framework for developing and implementing a rapid tool to evaluate the effects of COVID-19 on interactions people have with their food environments. This tool was developed on the basis of a preliminary case study with smallholder farmers in China that generated a set of key hypotheses. We modified the tool in order to be applicable to diverse contexts in low-, middle-, and high-income countries. Other researchers can implement the rapid tool presented here during times of COVID-19 as well as other disruptions towards identifying barriers and opportunities for enhancing food system resilience.

Food Environment Typology: Advancing an Expanded Definition, Framework, and Methodological Approach for Improved Characterization of Wild, Cultivated, and Built Food Environments toward Sustainable Diets.

The food environment is a critical place in the food system to implement interventions to support sustainable diets and address the global syndemic of obesity, undernutrition, and climate change, because it contains the total scope of options within which consumers make decisions about which foods to acquire and consume. In this paper, we build on existing definitions of the food environment, and provide an expanded definition that includes the parameter of sustainability properties of foods and beverages, in order to integrate linkages between food environments and sustainable diets. We further provide a graphical representation of the food environment using a socio-ecological framework. Next, we provide a typology with descriptions of the different types of food environments that consumers have access to in low-, middle-, and high-income countries including wild, cultivated, and built food environments. We characterize the availability, affordability, convenience, promotion and quality (previously termed desirability), and sustainability properties of food and beverages for each food environment type. Lastly, we identify a methodological approach with potential objective and subjective tools and metrics for measuring the different properties of various types of food environments. The definition, framework, typology, and methodological toolbox presented here are intended to facilitate scholars and practitioners to identify entry points in the food environment for implementing and evaluating interventions that support sustainable diets for enhancing human and planetary health.

Analysing the policy space for the promotion of healthy, sustainable edible oil consumption in India.

OBJECTIVE: To identify opportunities and challenges for the promotion of healthy, sustainable oil consumption in India. DESIGN: We use a framework for policy space analysis which distinguishes between policy context, process and characteristics. SETTING: We focus on the Indian edible oils sector and on factors shaping the policy space at a national level. PARTICIPANTS: The study is based on the analysis of policy documents and semi-structured interviews with key experts and stakeholders in the edible oils sector. RESULTS: We find opportunities associated with the emergence of multisectoral policy frameworks for climate adaptation and non-communicable disease (NCD) prevention at a national level which explicitly include the oils sector, the existence of structures for sectoral policy coordination, some supportive factors for the translation of nutrition evidence into practice, and the possibility of integrating nutrition-sensitive approaches within current state-led agricultural interventions. However, the trade-offs perceived across sustainability, NCD prevention and food security objectives in the vegetable oils sector are considered a barrier for policy influence and implementation. Sustainability and nutrition advocates tend to focus on different segments of the value chain, missing potential synergies. Moreover, policy priorities are dominated by historical concerns for food security, understood as energy provision, as well as economic and strategic priorities. CONCLUSIONS: Systematic efforts towards identifying synergistic approaches, from agricultural production to distribution of edible oils, as well as increased involvement of nutrition advocates with upstream policies in the oils sector, could increase policy influence for advocates of both nutrition and sustainability.

A Systematic Review Investigating the Relation Between Animal-Source Food Consumption and Stunting in Children Aged 6-60 Months in Low and Middle-Income Countries.

Animal-source foods (ASFs) are a food group of interest for interventions aimed at reducing stunting and other inadequate growth measures in early childhood. The aim of this systematic review was to examine the relation between ASF consumption and stunting in children aged 6-60 mo in low- and middle-income countries (LMICs). The secondary aim was to examine the relation between ASF consumption and other indicators of growth and development (length/height, weight, head circumference, and anemia). A search of the peer-reviewed and grey literature published from January 1980 to June 2017 was conducted. Databases searched included CINAHL, Embase, Global Index Medicus, PubMed, and Web of Science. There were 14,783 records and 116 full text articles dual screened; 21 studies were included in the review and were dual evaluated for risk of bias (RoB). The relation between ASF and stunting (length- or height-for-age z-score←2) was examined in randomized-controlled trials [(RCTs), n = 3] and cross-sectional studies (n = 4) only; ASF reduced stunting in 1 RCT and was associated with reduced stunting in 1 cross-sectional study. We did not identify any longitudinal cohorts that examined this relation. The relation between ASF and secondary indicators length/height, weight, head circumference, and anemia were largely nonsignificant across study designs. The intervention/exposure, comparator, outcome measures, methods, and analyses were highly heterogeneous. Although we did not find a consistent relation between ASF consumption and our primary and secondary outcomes, this may have been a function of inconsistencies in study design. Foods in the whole diet, particularly combination dishes, are inherently difficult to assess. To quantitatively assess the relation between ASF and stunting and other indicators of growth and iron status in early childhood, future research should provide consistency in the definition and quantification of the exposure and outcomes allowing for interstudy quantitative comparisons.

An mHealth voice messaging intervention to improve infant and young child feeding practices in Senegal.

Mobile health (mHealth) interventions have the potential to improve infant and young child feeding (IYCF) practices; however, gaps in the literature remain regarding their design, implementation, and effectiveness. The aims of this study were to design an mHealth voice messaging intervention delivered to mothers and fathers targeting IYCF practices and examine its implementation and impact in households with children 6-23 months in three rural villages in Senegal. We conducted focus groups (n = 6) to inform the intervention development. We then conducted a pilot study (n = 47 households) to examine the impact of the intervention on IYCF practices of children 6-23 months. Voice messages were sent to the children's mothers and fathers over a period of 4 weeks (two messages per week; eight messages in total), and 24-hr dietary recalls and food frequency questionnaires (FFQs) were conducted before and immediately after the implementation of the mHealth intervention to examine its impact on IYCF practices. Overall, three of the eight behaviours increased and one decreased. There was a significant increase in the number of children that consumed fish (60% vs. 94%; p = .008) as measured by the 24-hr recall after the completion of the intervention. We also found significantly higher frequency of egg (p = .026), fish (p = .004), and thick porridge (p = .002) consumption in the previous 7 days measured by the FFQ. Our findings suggest that voice messaging IYCF interventions in Senegal have the potential to improve IYCF behaviours among young children in the short term. Future research should entail scaling-up the intervention and examining its sustainability over the long-term.

The interface between consumers and their food environment in Myanmar: an exploratory mixed-methods study.

OBJECTIVE: To examine consumers' perceptions of their food environments, their food consumption patterns and preferences, and to better understand the attributes of foods that are available within food environments in Myanmar. DESIGN: An exploratory mixed-methods study using a combination of focus group discussions, market and consumer surveys. SETTING: Four study settings in Myanmar were included: an upper-income township of Yangon; a lower-income township of Yangon; a middle-income township in the southern Myanmar town of Dawei; and a lower-income village in the country's dry zone of Magway. PARTICIPANTS: Thirty-two women participated in the focus groups discussions, twenty market surveys were conducted and 362 consumers (both men and women) completed food consumption surveys. RESULTS: Focus group participants indicated that the availability of a diverse range of foods had increased over time, while the quality of foods had decreased. Health was seen primarily through the lens of food safety and there was an overall lack of knowledge about which foods were more or less healthy. Consumers preferred fruits, vegetables and red meat compared with highly processed snack foods/beverages. Although consumers reported low intakes of highly processed snack foods, Burmese street food was consumed in high quantities. The market surveys suggested that fresh, minimally processed and highly processed foods were available at all markets across the study settings. CONCLUSIONS: Consumers are exposed to a variety of foods, of varying quality, within their food environments in Myanmar. Interventions aimed at increasing consumer knowledge regarding healthy diets and improving food safety are needed.

Fiscal policy to improve diets and prevent noncommunicable diseases: from recommendations to action.

The World Health Organization has recommended that Member States consider taxing energy-dense beverages and foods and/or subsidizing nutrient-rich foods to improve diets and prevent noncommunicable diseases. Numerous countries have either implemented taxes on energy-dense beverages and foods or are considering the implementation of such taxes. However, several major challenges to the implementation of fiscal policies to improve diets and prevent noncommunicable diseases remain. Some of these challenges relate to the cross-sectoral nature of the relevant interventions. For example, as health and economic policy-makers have different administrative concerns, performance indicators and priorities, they often consider different forms of evidence in their decision-making. In this paper, we describe the evidence base for diet-related interventions based on fiscal policies and consider the key questions that need to be asked by both health and economic policy-makers. From the health sector's perspective, there is most evidence for the impact of taxes and subsidies on diets, with less evidence on their impacts on body weight or health. We highlight the importance of scope, the role of industry, the use of revenue and regressive taxes in informing policy decisions.

L'Organisation mondiale de la Santé a recommandé aux États membres d'envisager de taxer les boissons et aliments à haute teneur énergétique et/ou de subventionner les denrées riches en nutriments, en vue d'améliorer les régimes alimentaires et de prévenir les maladies non transmissibles. Aujourd'hui, nombreux sont les pays à avoir instauré des taxes sur les boissons et aliments à haute teneur énergétique ou à envisager de le faire. Néanmoins, d'importants défis subsistent pour la mise en application de ce type de politiques fiscales. Certains sont liés à la nature intersectorielle des interventions appropriées. Par exemple, comme les responsables des politiques économiques et les responsables des politiques de santé ont des préoccupations administratives, des priorités et des indicateurs de performances différents, ils s'appuient souvent sur différentes formes de données dans leur prise de décisions. Dans le présent document, nous décrivons les données probantes susceptibles d'orienter les interventions sur l'alimentation fondées sur des politiques fiscales et nous évoquons les principales problématiques auxquelles doivent répondre à la fois les responsables des politiques économiques et les responsables des politiques de santé. D'un point de vue de santé publique, les preuves de l'impact des taxes et subventions sur les habitudes alimentaires sont plus nombreuses que les preuves de leur impact sur le poids ou la santé. Nous abordons également l'importance du périmètre d'action, le rôle de l'industrie, l'utilisation des recettes fiscales et la régressivité des taxes, dans l'optique d'éclairer les décisions politiques.

La Organización Mundial de la Salud ha recomendado a los Estados Miembros considerar la posibilidad de aplicar un impuesto a las bebidas y los alimentos de alto contenido energético y/o subvencionar los alimentos ricos en nutrientes para mejorar las dietas y prevenir enfermedades no contagiosas. Numerosos países ya aplican impuestos a bebidas y alimentos de alto contenido energético o consideran la implementación de dichos impuestos. Sin embargo, persisten varios desafíos importantes para la implementación de políticas fiscales para mejorar las dietas y prevenir las enfermedades no contagiosas. Algunos de estos desafíos están relacionados con la naturaleza intersectorial de las intervenciones correspondientes. Por ejemplo, puesto que los encargados de la formulación de políticas de salud y economía tienen diferentes preocupaciones administrativas, indicadores de rendimiento y prioridades, a menudo tienen en cuenta diferentes formas de pruebas en su toma de decisiones. En este documento, se describe la base de pruebas para intervenciones relacionadas con la dieta basadas en políticas fiscales y se consideran las preguntas clave que deben formular tanto los responsables de la política económica como de la de salud. Desde la perspectiva del sector de la salud, existen muchas pruebas del impacto de los impuestos y subsidios en las dietas, con menos pruebas de sus impactos sobre el peso o la salud corporal. Se destaca la importancia del alcance, el papel de la industria, el uso de los ingresos y los impuestos regresivos para informar sobre las decisiones políticas.

Systematic review of the design, implementation and effectiveness of mass media and nutrition education interventions for infant and young child feeding.

OBJECTIVE: To systematically review the design, implementation and effectiveness of mass media and nutrition education interventions for improving infant and young child feeding (IYCF) practices and related psychosocial factors. DESIGN: A search of PubMed, Embase and PsycINFO databases, a Google search, and a consultation with experts in the field of IYCF performed in July 2016. SETTING: Low- and middle-income countries, as defined by the World Bank Group. SUBJECTS: Eligible studies: included a mass media component (with or without nutrition education); conducted a pre-post evaluation (with or without a control group); assessed IYCF knowledge, attitudes, beliefs and/or practices; and were published in English between 2000 and present. RESULTS: Eighteen unique studies were identified that examined the effect of mass media (types included: television; print; voice and/or SMS (text) messages; radio; megaphones/loudspeakers; videos; social media; songs/dramas) and nutrition education interventions on IYCF practices within thirteen countries. Of these, fifteen studies reported improvements in breast- and/or complementary feeding practices, using indicators recommended by the WHO, and six studies reported improvements in related psychosocial factors. However, little detail was provided on the use of formative research, a formal behaviour change theory and behaviour change techniques. Few studies reported both dose delivered and participants' exposure to the intervention. CONCLUSIONS: Despite evidence of effectiveness, few common elements in the design of interventions were identified. Future research should consistently report these details to open the 'black box' of IYCF interventions, identify effective design components and ensure replicability.