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Costing Healthy Diets And Measuring Deprivation New Indicators And Modeling Approaches
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Book Synopsis Costing healthy diets and measuring deprivation: New indicators and modeling approaches by : Pauw, Karl
Download or read book Costing healthy diets and measuring deprivation: New indicators and modeling approaches written by Pauw, Karl and published by Intl Food Policy Res Inst. This book was released on 2021-12-22 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the greatest global challenges today is ensuring widespread availability and equitable access to affordable, nutritious foods produced in an environmentally sustainable manner. A rich literature exists around the definition of a healthy diet and the drivers of dietary change. We contribute to this literature by proposing a new quantifiable diet deprivation measure estimated from standard household consumption and expenditure surveys. The Reference Diet Deprivation (ReDD) index measures the incidence, breadth, and depth of diet deprivation across multiple, essential food groups in a single indicator. Although useful as a standalone measure, we show how ReDD can be integrated into an economywide model to examine changes in household diet quality under different simulation scenarios. Using Nigeria as case study, hypothetical agricultural productivity growth scenarios reveal that dairy, pulses, fruit, and red meat value chains have the greatest potential to reduce overall diet deprivation in Nigeria per unit of GDP growth generated, while productivity growth in more widely consumed crops such as cereals and root crops do little to improve diet quality. These findings have implications for the prioritization of agricultural development initiatives aimed at improving the quality of diets. More generally, the integration of a diet quality indicator in an economywide model allows for a deeper understanding of the drivers of dietary change.
Book Synopsis Costing Healthy Diets and Measuring Deprivation by : Karl Pauw
Download or read book Costing Healthy Diets and Measuring Deprivation written by Karl Pauw and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rwanda’s agrifood system: Structure and drivers of transformation by : Diao, Xinshen
Download or read book Rwanda’s agrifood system: Structure and drivers of transformation written by Diao, Xinshen and published by Intl Food Policy Res Inst. This book was released on 2023-01-25 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper assesses the structure of Rwanda’s current and evolving agrifood system and its contribu-tion to national development. The paper reiterates the point that Rwanda’s agrifood system stretches well beyond primary agriculture and creates jobs and income opportunities throughout the economy. While off-farm components of Rwanda’s agrifood system have generally grown more rapidly than pri-mary agriculture in recent years, growth varies across value chains of the agrifood system in the stud-ied period. The growth diagnostic in this paper reveals that it is domestic markets that have driven the recent growth in Rwanda’s AFS other than exports. The paper’s forward-looking analysis assesses potentially differential impacts of value-chain develop-ment efforts on broad development outcomes. The analysis measures the synergies and trade-offs of value-chain development in the context of an inclusive agricultural transformation. Such analysis is conducted using the Rwanda Computable General Equilibrium (CGE) model – an adaption of IFPRI’s Rural Investment and Policy Analysis (RIAPA) model to the Rwandan context. The modeling results indicate that value chains differ considerably in their effectiveness in achieving development goals and there are significant trade-offs among different development goals from pro-moting a specific value chain. The value chains that make a larger contribution to growth or job crea-tion are not necessarily effective in reducing poverty or improving dietary quality – for example, value chains for coffee and tea – while value chains that play an important role in improving dietary quality may contribute less to job creation – such as vegetables or fruits. While there is no single value chain that can achieve all development goals effectively, it is possible to select a diversified set of value chains that complement each other in achieving different development goals. This latter strategy is a more realistic approach to growth and development.
Book Synopsis Kenya's agrifood system: Structure and drivers of transformation by : Diao, Xinshen
Download or read book Kenya's agrifood system: Structure and drivers of transformation written by Diao, Xinshen and published by Intl Food Policy Res Inst. This book was released on 2023-03-03 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This analysis is composed of two parts. The evolving structure of Kenya’s agrifood system (AFS) and its contribution to national development is assessed using a series of Social Accounting Matrixes (SAMs) for Kenya for the period 2009–2019. Economic performance is also assessed at subsector level to better understand the contributions of different agrifood value chains to Kenya’s development and economic transformation in recent years. The analysis reveals that the effects of AFS transformation stretches well beyond primary agriculture, creating jobs and income opportunities throughout the economy. In fact, the off-farm components of the AFS have grown more rapidly than primary agriculture, although differences in market structure and internationally tradable status contributed to varied patterns of growth across value chains. The analysis further reveals that it is the domestic market, not exports, that has driven the recent growth in Kenya’s AFS. Rapid urbanization and increased income generating opportunities in the rural nonfarm sector are causing dietary patterns to shift, which will continue to shape the transformation of the AFS in Kenya. A forward-looking analysis using IFPRI’s Rural Investment and Policy Analysis (RIAPA) model – an economywide modeling framework – assesses the potential impacts of future value chain growth on development outcome indicators. The findings reveal that value chains differ considerably in their effectiveness in achieving various development outcomes. Promoting only one value chain may also result in trade-offs across these development goals. For example, the coffee and tea value chains are highly effective at raising off-farm employment in the AFS, but they have weak impacts on diet quality. Likewise, cattle and dairy have strong off-farm GDP effects within the AFS, but are relatively ineffective at reducing poverty. By promoting and investing in several value chains simultaneously, policymakers can leverage synergies and mitigate trade-offs across development outcomes associated with specific value chains. The RIAPA analysis here suggests that joint promotion of the pulses and oilseeds, fruits and nuts, and cattle and dairy value chains will be most effective at impacting the full spectrum of development outcomes tracked in the model, including poverty, growth, jobs, and diets. However, the final value chain selection may change depending on the importance policymakers attach to the respective development outcomes.
Book Synopsis Transforming Nigeria’s agrifood system: Wealthier, but also healthier by : Ecker, Olivier
Download or read book Transforming Nigeria’s agrifood system: Wealthier, but also healthier written by Ecker, Olivier and published by Intl Food Policy Res Inst. This book was released on 2021-11-19 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Malnutrition, largely attributable to poor diets among both the rich and poor, presents a growing challenge in Nigeria. This brief considers the obstacles to food security and better nutrition, particularly the country’s macroeconomic instability, widespread poverty, and the need for greater investment and policy coherence to support dietary diversity. The authors describe how a policy shift to focus on consumer needs can transform the agrifood system to deliver healthier and more affordable diets for all Nigerians, as well as better and more secure rural livelihoods.
Book Synopsis Food systems transformation in Kenya: Lessons from the past and policy options for the future Loading... Files Full Book (7.78 MB, pdf) Chapters List (73 KB, pdf) Authors Breisinger, Clemens Keenan, Michael Mbuthia, Juneweenex Njuki, Jemimah Date Issued 2023-12-20 Language en Type Book Review Status Peer Review Access Rights Open Access Open Access Usage Rights CC-BY-4.0 Metadata Sha by : Breisinger, Clemens
Download or read book Food systems transformation in Kenya: Lessons from the past and policy options for the future Loading... Files Full Book (7.78 MB, pdf) Chapters List (73 KB, pdf) Authors Breisinger, Clemens Keenan, Michael Mbuthia, Juneweenex Njuki, Jemimah Date Issued 2023-12-20 Language en Type Book Review Status Peer Review Access Rights Open Access Open Access Usage Rights CC-BY-4.0 Metadata Sha written by Breisinger, Clemens and published by Intl Food Policy Res Inst. This book was released on 2024-02-12 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new Kenyan government faces a complex domestic and global environment, and it is widely expected to address key food and agricultural challenges with a new set of policies and programs. This policy brief presents key recommendations from a forthcoming book, Food Systems Transformation in Kenya: Lessons from the Past and Policy Options for the Future, which provides research-based “food for thought and action” to support the Kenyan government’s efforts to improve food security.
Book Synopsis COVID-19 and global food security: Two years later by : McDermott, John
Download or read book COVID-19 and global food security: Two years later written by McDermott, John and published by Intl Food Policy Res Inst. This book was released on 2022-03-07 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two years after the onset of the COVID-19 pandemic, the health, economic, and social disruptions caused by this global crisis continue to evolve. The impacts of the pandemic are likely to endure for years to come, with poor, marginalized, and vulnerable groups the most affected. In COVID-19 & Global Food Security: Two Years Later, the editors bring together contributions from new IFPRI research, blogs, and the CGIAR COVID-19 Hub to examine the pandemic’s effects on poverty, food security, nutrition, and health around the world. This volume presents key lessons learned on food security and food system resilience in 2020 and 2021 and assesses the effectiveness of policy responses to the crisis. Looking forward, the authors consider how the pandemic experience can inform both recovery and longer-term efforts to build more resilient food systems.
Book Synopsis Assessing investment priorities for driving inclusive agricultural transformation in Tanzania by : Aragie, Emerta
Download or read book Assessing investment priorities for driving inclusive agricultural transformation in Tanzania written by Aragie, Emerta and published by Intl Food Policy Res Inst. This book was released on 2023-04-28 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study utilizes a recursive dynamic general equilibrium model calibrated with data for Tanzania to explore the link between agricultural and rural development spending and four development outcomes: economic growth, job creation, poverty reduction, and diet quality. Results show that no single expenditure option is the most effective in achieving all four desired development outcomes for Tanzania. Productivity-enhancing agricultural interventions in horticulture are effective at generating growth in the agri-food system (AFS) and improving diets, but have a limited effect on employment. Supporting cereal producers has large effects on growth and poverty reduction, with relatively high returns per dollar invested, but its effect on diet quality is weak. Providing livestock services to milk and poultry farmers consistently ranks high across the outcome indicators, with strong employment effects on downstream AFS. Crop research and development and feeder roads generate moderate impacts on all four outcomes. Partially reallocating the budget towards the most cost-effective spending options can substantially increase the development effectiveness for Tanzania of agriculture sector support expenditures. The approach adopted in this study can help policymakers design and prioritize agricultural interventions and expenditure portfolios that better reflect the country’s broad food system.
Book Synopsis The economywide effects of reducing food loss and waste in developing countries by : Aragie, Emerta
Download or read book The economywide effects of reducing food loss and waste in developing countries written by Aragie, Emerta and published by Intl Food Policy Res Inst. This book was released on 2023-03-08 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the Sustainable Development Goals (SDGs) is reducing food loss and waste (FLW) across all stages of food value chains, including the on-farm production, the off-farm postharvest, processing, and distribution, and the household consumption stages. We employ general equilibrium models for Bangladesh, Kenya, and Nigeria to assess the economywide implications of reducing FLW at different stages of value chains. Halving FLW results in GDP increases of between 1.1 and 2 percent, with up to 13 million people lifted out of poverty across the three countries. Diets also improve – especially in Kenya and Nigeria – due to greater availability and lower prices of healthy foods such as fruits and vegetables. Although most of the gains originate from reducing FLW in the on-farm production stage, strong intersectoral linkages mean around 30 percent of measured GDP gains are realized in non-agricultural sectors. Reducing waste at the final consumption stage has small negative impacts on GDP as households purchase less food without reducing their food intake. We conclude that the significant economywide gains provide a justification for adopting FLW reduction strategies, although costing the policy and investment options needed to reduce FLW is an important area for future research.
Book Synopsis Dietary change and food demand in urbanizing Bangladesh by : Ecker, Olivier
Download or read book Dietary change and food demand in urbanizing Bangladesh written by Ecker, Olivier and published by Intl Food Policy Res Inst. This book was released on 2021-12-31 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poor-quality diets are one of the leading causes of malnutrition and common non-communicable disease. In this study, we use nationally representative household survey data and food demand system estimations to analyze dietary change and changing consumer preferences for different foods in the context of urbanization in low- and middle-income countries. We estimate and compare income and price elasticities of total food demand and the demand for 15 food groups in rural, urban, and city areas of Bangladesh for 2010 and 2016. We then use Oaxaca-Blinder decomposition regressions to explore how much of the observed food consumption changes can be explained by changes in revealed consumer preferences vis-à-vis changes in household income and food prices. The results show that Bangladeshi diets shifted from coarse to refined rice, and consumer preferences for vegetables and pulses were relatively low, contributing to worsening dietary quality. On the other hand, the consumption of nutritious, animal-source foods including fish, poultry, and eggs increased due to high consumer preferences and declining food prices-partly thanks to governmental production support. Regarding the dietary implications of rapid urbanization, the analysis suggests that rural consumers’ diets will largely follow the trajectory of urban consumers in Bangladesh.
Book Synopsis Egypt: Impacts of the Ukraine and Global Crises on Poverty and Food Security by : Abay, Kibrom A.
Download or read book Egypt: Impacts of the Ukraine and Global Crises on Poverty and Food Security written by Abay, Kibrom A. and published by Intl Food Policy Res Inst. This book was released on 2022-08-22 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global food, fuel, and fertilizer prices have witnessed rapid and significant increase in recent months, driven largely by the fallout from the ongoing war in Ukraine and associated sanctions im-posed on Russia. Other factors, including governments’ responses and export bans, have also con-tributed to rising prices (Laborde and Mamun 2022). Palm oil and wheat prices increased by 56 and 100 percent in real terms, respectively, between June 2021 and April 2022, with most of the in-crease occurring since February 2022.
Book Synopsis The economywide impacts of increasing water security through policies on agricultural production: The case of rice and sugarcane in Pakistan by : Davies, Stephen
Download or read book The economywide impacts of increasing water security through policies on agricultural production: The case of rice and sugarcane in Pakistan written by Davies, Stephen and published by Intl Food Policy Res Inst. This book was released on 2024-01-09 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing demand for water juxtaposed with shrinking supplies will require a transfer of water resources out of agriculture into the domestic, industrial, and ideally environmental sectors. To examine the potential of policies to facilitate a release of water from agriculture, this paper uses IFPRI’s Computable General Equilibrium Model with a water extension, CGE-W, to assess the impact of commodity taxes on two highly water consumptive crops, rice and sugarcane, on water consumption and the overall economy. We find that land use grows by 1.56 million acres overall when the tax is imposed on both commodities, while 3.2-million-acre feet (MAF) of consumed water, equivalent to 6.35 MAF of water withdrawals, are released from agriculture. These outcomes are due to sugarcane’s reduced use of land over two cropping seasons and significant changes in cropping patterns. The study also examined releases of water from other possible policy measures and found that an even tax rate of 30% on sugarcane, rice and cotton yields 8.73 MAF of water from agriculture. However, with a hotter, drier climate virtually all these releases of water disappear because water must stay in agriculture due to higher evaporation and less precipitation, which raises irrigation demands. The needed policies will go beyond just taxation and might include changing cropping patterns and irrigation practices, as well as development of drought resistant varieties. Other approaches, such as buying tubewells from farmers, and developing markets for nonagricultural purchases of water, may have a role. The role of international trade in sugar and rice is shown to be significant and should be considered further in these analyses.
Book Synopsis Public investment prioritization for Rwanda’s inclusive agricultural transformation: Evidence from rural investment and policy analysis modeling by : Aragie, Emerta
Download or read book Public investment prioritization for Rwanda’s inclusive agricultural transformation: Evidence from rural investment and policy analysis modeling written by Aragie, Emerta and published by Intl Food Policy Res Inst. This book was released on 2022-02-22 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: As Rwanda is expected to return to its rapid growth trajectory following the COVID-19 pandemic, agriculture will continue to play a central role in the structural transformation of the entire economy. To this end, the Government of Rwanda continues to invest in the agricultural sector by building on Strategic Plans for the Transformation of Agriculture (PSTAs) that began in the early 2000s. The challenging question is how to prioritize public expenditures across a broad portfolio of policies and programs. Ambitious plans, whether in the short or long term, require difficult decisions. The prioritization of public investment becomes even more complex as Rwanda’s structural transformation advances and as new investments—beyond the farm—become critically important for the agricultural sector. The structural transformation process itself means that as agriculture becomes more integrated with the rest of the economy, public resource allocations need to address a wider range of issues across the entire food system; these include nutrition-sensitive food production systems, inclusive value chain development, nonfarm rural enterprise development, and climate-resilient sustainable intensification of both crops and livestock. This study provides evidence that is designed to assist the Government of Rwanda in its selection of agricultural policy, investment, and expenditure portfolios that reflect the country’s broad focus on its food system and structural transformation. This process of prioritization will need to incorporate multiple public investments targeting multiple development outcomes and will need to be grounded in the costeffective use of public resources in a largely market-led transformation process. This data-driven and evidence-based approach must critically underpin an informed investment prioritization process that helps achieve ambitious targets in an environment constrained by limited public resources. The study uses the Rural Investment and Policy Analysis (RIAPA) economywide model developed by the International Food Policy Research Institute (IFPRI), with contributions from colleagues at the Ministry of Agriculture and Animal Resources (MINAGRI), the Ministry of Finance and Economic Planning (MINECOFIN) and the National Institute of Statistics of Rwanda (NISR). The study draws on data from multiple sources as well as expert insights to inform the application of RIAPA’s Agricultural Investment for Data Analyzer (AIDA) module as a tool to measure the impacts of alternative public expenditure options on multiple development outcomes. Using this integrated modeling framework, the study links agricultural and rural development spending to four specific outcomes: economic growth, job creation, poverty reduction, and diet quality improvement; at the same time, it considers the synergies and tradeoffs associated with the different investment options in the transformation process. The paper first assesses the contribution of public expenditures to agricultural and rural development under the fourth Strategic Plan for Agriculture Transformation (PSTA 4) that extends between 2018 and 2024. These findings are important, given the fact that since the beginning of PSTA 4, the budget allocated to MINAGRI (measured in constant prices) has stagnated. Our results suggest that increased spending on agriculture is well justified and that such spending is essential if the Government of Rwanda is to achieve its long-term development goals.
Book Synopsis Dietary quality and nutrition in Myanmar: Past progress, current and future challenges by : Mahrt, Kristi
Download or read book Dietary quality and nutrition in Myanmar: Past progress, current and future challenges written by Mahrt, Kristi and published by Intl Food Policy Res Inst. This book was released on 2023-02-17 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the decade prior to the COVID-19 pandemic, Myanmar was in the midst of a dietary transition driven by rapid economic growth and urbanization. In this study, we first use national survey data to compare household diets in 2015 to the healthy diet recommendations of food-based dietary guidelines adapted for Myanmar, as well as estimated nutrient consumption relative to recommended intakes. We use these food group and nutrient consumption gaps to estimate a new measure of multidimensional dietary deprivation developed by Pauw et al. (2022), and a novel extension of that index to nutrient deprivation. Both deprivation indices are strongly negatively correlated with total household expenditure. We then use food demand estimation to estimate income and own price elasticities, which reveal strong preferences for animal-sourced foods, but weaker preferences for vegetables and pulses. Expenditure data also point to strong demand for oils/fats – a problem observed throughout developing Asia (Pingali and Abraham 2022) – and for food away from home, which partially explains the rising burden of overweight/obesity in Myanmar. Moreover, since most nutrient-dense foods are income- and price-elastic, estimated income elasticities suggest that recent declines in household income and increases in food prices in Myanmar will result in declining dietary diversity. We show that this is indeed the case utilizing household phone surveys conducted in recent years. We first use a food vendor survey to show that the cost of a healthy diet increased by 61 percent between September 2021 and September 2022. Next, we analyze a rural Dry Zone panel survey implemented 10 times over 2020-2021 and find that maternal and child dietary diversity both declined significantly as Myanmar’s economic situation deteriorated. Then, in a nationally representative phone survey conducted quarterly in 2022 over a period of rapid food inflation, we find further deterioration in diet quality among adults, but no deterioration among children 6-23 months of age, suggesting parents may be trying to insulate their children from the worst effects of the crisis. Finally, we conclude the paper by discussing policy and program options in very difficult political circumstances. Malnutrition is a multidimensional problem requiring multisectoral solutions, but at present the breakdown in the provision of even basic services makes significant progress highly unlikely, and reversing the recent deterioration in dietary quality and nutrition will surely require resolution of Myanmar’s political crisis. In the interim, we discuss three potentially effective types of interventions: (1) rice fortification to reduce micronutrient deficiencies; (2) homestead food production to improve dietary quality in farm households and rural and peri-urban communities; and (3) nutrition-sensitive social protection for vulnerable mothers and young children, with transfers ideally accompanied by nutrition education interventions.
Book Synopsis Access to Affordable and Nutritious Food: Measuring and Understanding Food Deserts and Their Consequences by : Michele Ver Ploeg
Download or read book Access to Affordable and Nutritious Food: Measuring and Understanding Food Deserts and Their Consequences written by Michele Ver Ploeg and published by DIANE Publishing. This book was released on 2010-02 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Food, Conservation, and Energy Act of 2008 directed the U.S. Dept. of Agr. to conduct a 1-year study to assess the extent of areas with limited access to affordable and nutritious food, identify characteristics and causes of such areas, consider how limited access affects local populations, and outline recommend. to address the problem. This report presents the findings of the study, which include results from two conferences of national and internat. authorities on food deserts and a set of research studies. It also includes reviews of existing literature, a national-level assessment of access to large grocery stores and supermarkets, analysis of the economic and public health effects of limited access, and a discussion of existing policy interventions. Illus.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9251318751 Total Pages :42 pages Book Rating :4.2/5 (513 download)
Book Synopsis Sustainable healthy diets by : Food and Agriculture Organization of the United Nations
Download or read book Sustainable healthy diets written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-10-15 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considering the detrimental environmental impact of current food systems, and the concerns raised about their sustainability, there is an urgent need to promote diets that are healthy and have low environmental impacts. These diets also need to be socio-culturally acceptable and economically accessible for all. Acknowledging the existence of diverging views on the concepts of sustainable diets and healthy diets, countries have requested guidance from the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO) on what constitutes sustainable healthy diets. These guiding principles take a holistic approach to diets; they consider international nutrition recommendations; the environmental cost of food production and consumption; and the adaptability to local social, cultural and economic contexts. This publication aims to support the efforts of countries as they work to transform food systems to deliver on sustainable healthy diets, contributing to the achievement of the SDGs at country level, especially Goals 1 (No Poverty), 2 (Zero Hunger), 3 (Good Health and Well-Being), 4 (Quality Education), 5 (Gender Equality) and 12 (Responsible Consumption and Production) and 13 (Climate Action).
Book Synopsis Nutrition in the Prevention and Treatment of Disease by : Ann M. Coulston
Download or read book Nutrition in the Prevention and Treatment of Disease written by Ann M. Coulston and published by Academic Press. This book was released on 2017-04-28 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition in the Prevention and Treatment of Disease, Fourth Edition, is a compilation of current knowledge in clinical nutrition and an overview of the rationale and science base of its application to practice in the prevention and treatment of disease. In its fourth edition, this text continues the tradition of incorporating new discoveries and methods related to this important area of research Generating and analyzing data that summarize dietary intake and its association with disease are valuable tasks in treating disease and developing disease prevention strategies. Well-founded medical nutrition therapies can minimize disease development and related complications. Providing scientifically sound, creative, and effective nutrition interventions is both challenging and rewarding. Two new chapters on metabolomics and translational research, which have come to be used in nutrition research in recent years. The new areas of study are discussed with the perspective that the application of the scientific method is by definition an evolutionary process. A new chapter on Genetics and Diabetes which reviews the latest research on causal genetic variants and biological mechanisms responsible for the disease, and explores potential interactions with environmental factors such as diet and lifestyle. Includes all major "omics" – the exposome, metabolomics, genomics, and the gut microbiome. Expands the microbiota portions to reflect complexity of diet on gut microbial ecology, metabolism and health
