The Food and Nutrition Board (FNB) of the National Academies of Sciences, Engineering, and Medicine was convened in 1940 in response to a request from the U.S. National Defense Advisory Commission to the National Academy of Sciences for aid in studying problems of nutrition in the United States. Today the FNB is the focal point for activities concerned with food, nutrition, and food safety, and their roles in health maintenance and disease prevention. Now in its 80th year, the FNB has continued its growth and expanded its reach both domestically and internationally, providing visionary leadership across a range of nutrition and food science issues toward the improvement of human health. In honor of its 80 years of service to the nation, the FNB convened a public symposium to review the origin and history, policy influence, and future directions of the FNB. This publication summarizes the presentations of the event.
In September 2016, the National Academies of Sciences, Engineering, and Medicine convened a workshop to examine trends and patterns in aging and factors related to healthy aging in the United States, with a focus on nutrition, and how nutrition can sustain and promote healthy aging, not just in late adulthood, but beginning in pregnancy and early childhood and extending throughout the lifespan. Participants discussed the role of nutrition in the aging process at various stages in life, changes in organ systems over the lifespan and changes that occur with age related to cognitive, brain, and mental health, and explored opportunities to move forward in promoting healthy aging in the United States. This publication summarizes the presentations and discussions from the workshop.
As essential nutrients, sodium and potassium contribute to the fundamentals of physiology and pathology of human health and disease. In clinical settings, these are two important blood electrolytes, are frequently measured and influence care decisions. Yet, blood electrolyte concentrations are usually not influenced by dietary intake, as kidney and hormone systems carefully regulate blood values. Over the years, increasing evidence suggests that sodium and potassium intake patterns of children and adults influence long-term population health mostly through complex relationships among dietary intake, blood pressure and cardiovascular health. The public health importance of understanding these relationships, based upon the best available evidence and establishing recommendations to support the development of population clinical practice guidelines and medical care of patients is clear. This report reviews evidence on the relationship between sodium and potassium intakes and indicators of adequacy, toxicity, and chronic disease. It updates the Dietary Reference Intakes (DRIs) using an expanded DRI model that includes consideration of chronic disease endpoints, and outlines research gaps to address the uncertainties identified in the process of deriving the reference values and evaluating public health implications.
The amount of nutrients required by an individual is determined by a number of physiological processes, including absorption, metabolism, stability, and bio-activation. These processes determine nutrient needs and provide variations in requirements in the population. All have modifiers and sensitizers, such as sex, genetics, pregnancy, age, pharmaceuticals, toxins, food matrix, and epigenetics. Disease can also be a major modifier of these processes. In April 2018, the National Academies of Science, Engineering and Medicine convened a workshop in order to explore the evidence for special nutritional requirements in disease states and the medical conditions that cannot be met with a normal diet. Participants explored the impact a disease state can have on nutrient metabolism and nutritional status, and attempted to close informational gaps. This publication summarizes the presentations and discussions from the workshop.
Since 1938 and 1941, nutrient intake recommendations have been issued to the public in Canada and the United States, respectively. Currently defined as the Dietary Reference Intakes (DRIs), these values are a set of standards established by consensus committees under the National Academies of Sciences, Engineering, and Medicine and used for planning and assessing diets of apparently healthy individuals and groups. In 2015, a multidisciplinary working group sponsored by the Canadian and U.S. government DRI steering committees convened to identify key scientific challenges encountered in the use of chronic disease endpoints to establish DRI values. Their report, Options for Basing Dietary Reference Intakes (DRIs) on Chronic Disease: Report from a Joint US-/Canadian-Sponsored Working Group, outlined and proposed ways to address conceptual and methodological challenges related to the work of future DRI Committees. This report assesses the options presented in the previous report and determines guiding principles for including chronic disease endpoints for food substances that will be used by future National Academies committees in establishing DRIs.
Obesity and overweight pose significant challenges to the armed forces in the United States, affecting service members (including active duty, guard, and reserve components), veterans, retirees, and their families and communities. The consequences of obesity and overweight in the armed forces influence various aspects of its operations that are critical to national security. On May 7, 2018, the National Academies of Sciences, Engineering, and Medicine, held a workshop titled "Understanding and Overcoming the Challenge of Obesity and Overweight in the Armed Forces." Speakers examined how obesity and overweight are measured in the armed forces and how they affect recruitment, retention, resilience, and readiness; discussed service-specific issues related to these problems and highlighted innovative strategies to address them through improved nutrition, physical activity, and stress management; and offered perspectives from outside of the armed forces on approaches to prevent and treat obesity. They also discussed the challenges and opportunities related to overcoming the concerns posed by obesity and overweight in the armed forces, military families, and their communities, including potential cross-sector opportunities. This publication summarizes the presentations and discussions from the workshop.
Human milk is considered the biologic norm for feeding the human infant during the first 6 months of life, and it is a preferred food from 6 to 12 months. It is a complex food and exerts its biologic effects well beyond its known nutritional value; however, human milk composition and the complexity of its composition is not wholly known or understood. Thus, defining the composition of milk, as well as both the individual and combined effects of milk components and the volume consumed on infant growth and development, is central to optimizing infant health. Furthermore, defining human milk composition, volume, and the myriad factors that influence milk components is needed for developing future Dietary Reference Intake (DRI) standards for nutrient intakes during the first 12 months of life. Scanning for New Evidence on the Nutrient Content of Human Milk examines the new and emerging evidence describing the nutrient content of human milk as well as the volume of milk consumed, both of which are needed to understand nutrient consumption by healthy breastfed infants. An evidence scan approach was used to summarize the status of the published literature on the nutrient content of human milk and to identify new evidence on nutrients in human milk that could inform the need for a systematic review as a component of the DRI process.
The built environmentâ€"the physical world made up of the homes, buildings, streets, and infrastructure within which people live, work, and playâ€"underwent changes during the 20th and 21st centuries that contributed to a sharp decline in physical activity and affected access to healthy foods. Those developments contributed in turn to the weight gain observed among Americans in recent decades. Many believe, therefore, that policies and practices that affect the built environment could affect obesity rates in the United States and improve the health of Americans. The National Academies of Sciences, Engineering, and Medicine convened a workshop in September 2017 to improve understanding of the roles played by the built environment in the prevention and treatment of obesity and to identify promising strategies in multiple sectors that can be scaled up to create more healthful and equitable environments. This publication summarizes the presentations and discussions from the workshop.
On September 16, 2019, the Roundtable on Obesity Solutions of the Health and Medicine Division of the National Academies of Sciences, Engineering, and Medicine, held a public workshop, Advancing Effective Obesity Communications, in Washington, DC. The workshop explored effective communication of obesity-related issues by providing an overview of the current communications environment and addressing the complexity of identifying key audiences and developing targeted messages. Speakers discussed communications strategies to reach specific intermediary audiences, such as the public, decision makers, and policy makers. The workshop also explored challenges in communicating about obesity issues, which include aligning the intended meaning of messages with an individual's perception of and response to those messages, addressing obesity bias and stigma through communications, and addressing misinformation. This publication summarizes the presentations and discussions that occurred at the workshop.
The National Academies of Sciences, Engineering, and Medicine convened a public workshop in September 2017 to explore the evidence for achieving global harmonization of methodological approaches to establishing nutrient intake recommendations. Participants reviewed current nutrient intake recommendations, discussed the feasibility of harmonizing approaches to setting such recommendations globally, examined the development of principles by which they may be applied in diverse contexts that relate to individuals or populations, or regulatory purposes, and examined perceptions and acceptance of nutrient intake recommendations by different stakeholders. This publication summarizes the presentations and discussions from the workshop.
Recommendations for feeding infants and young children have changed substantially over time owing to scientific advances, cultural influences, societal trends, and other factors. At the same time, stronger approaches to reviewing and synthesizing scientific evidence have evolved, such that there are now established protocols for developing evidence-based health recommendations. However, not all authoritative bodies have used such approaches for developing infant feeding guidance, and for many feeding questions there is little or no sound evidence available to guide best practices, despite the fact that research on infant and young child feeding has expanded in recent decades. Summarizing the current landscape of feeding recommendations for infants and young children can reveal the level of consistency of existing guidance, shed light on the types of evidence that underpin each recommendation, and provide insight into the feasibility of harmonizing guidelines. Feeding Infants and Children from Birth to 24 Months collects, compares, and summarizes existing recommendations on what and how to feed infants and young children from birth to 24 months of age. This report makes recommendations to stakeholders on strategies for communicating and disseminating feeding recommendations.
Recommended intake levels for nutrients and other dietary components were designed initially to prevent nutrient deficiency diseases in a given population, and the original methodological approach used to derive intake values did not include consideration for other applications. However, with the increasing globalization of information and the identification of a variety of factors specific to different population subgroups (e.g., young children and women of reproductive age) that influence their nutritional needs, there has been increasing recognition of the need to consider methodological approaches to deriving nutrient reference values (NRVs) that are applicable across countries and that take into account the varying needs of different population subgroups. There is a need for guidance and recommendations about methodological approaches, as well as their potential for application to an international process for the development of NRVs, and particularly for young children and women of reproductive age. Harmonization of Approaches to Nutrient Reference Values: Applications to Young Children and Women of Reproductive Age examines these issues and makes recommendations for a unified approach to developing NRVs that would be acceptable globally.
The increasing prevalence and burden of obesity transcends borders, straining populations worldwide. Data shows that 50 million girls, 74 million boys, 390 million women, and 281 million men were estimated to have obesity in 2016 (NCD-RisC, 2017). The National Academies of Sciences, Engineering, and Medicine convened a workshop on October 9, 2018 to address the status of the global obesity pandemic and discuss diverse approaches to manage this problem. Speakers examined the collective prevalence, costs, and drivers of obesity around the world using cross-cultural comparisons. Panels and group discussions emphasized the need to reduce disparities in prevention and treatment efforts and to generate new policy and system initiatives related to nutrition and physical activity worldwide. This publication summarizes the presentations and discussions from the workshop.
The Roundtable on Obesity Solutions of the National Academies of Sciences, Engineering, and Medicine held a workshop in Washington, DC, on April 6, 2017, titled The Challenge of Treating Obesity and Overweight: A Workshop. The discussions covered treatments for obesity, overweight, and severe obesity in adults and children; emerging treatment opportunities; the development of a workforce for obesity treatments; payment and policy considerations; and promising paths to move forward. This publication summarizes the presentations and discussions from the workshop.
On June 21â€"22, 2017, the National Academies of Sciences, Engineering, and Medicine's Food and Nutrition Board convened a workshop in Washington, DC, to explore the range of policies and programs that exist at the federal, state, tribal, and local levels to limit sugar-sweetened beverage consumption in children birth to 5 years of age. Topics examined over the course of the 1.5-day workshop included prevalence and trends in beverage intake among young children; beverage intake guidelines applicable to the age range of interest; challenges and opportunities of influencing beverage consumption; the role of industry in beverage intake; and knowledge gaps and research needs. This publication summarizes the presentations and discussions from the workshop.
What foods should Americans eat to promote their health, and in what amounts? What is the scientific evidence that supports specific recommendations for dietary intake to reduce the risk of multifactorial chronic disease? These questions are critically important because dietary intake has been recognized to have a role as a key determinant of health. As the primary federal source of consistent, evidence-based information on dietary practices for optimal nutrition, the Dietary Guidelines for Americans (DGA) have the promise to empower Americans to make informed decisions about what and how much they eat to improve health and reduce the risk of chronic disease. The adoption and widespread translation of the DGA requires that they be universally viewed as valid, evidence-based, and free of bias and conflicts of interest to the extent possible. However, this has not routinely been the case. A first short report meant to inform the 2020 review cycle explored how the advisory committee selection process can be improved to provide more transparency, eliminate bias, and include committee members with a range of viewpoints. This second and final report recommends changes to the DGA process to reduce and manage sources of bias and conflicts of interest, improve timely opportunities for engagement by all interested parties, enhance transparency, and strengthen the science base of the process.
Federal guidance on nutrition and diet is intended to reflect the state of the science and deliver the most reliable recommendations possible according to the best available evidence. This guidance, updated and presented every 5 years in the Dietary Guidelines for Americans (DGA), serves as the basis for all federal nutrition policies and nutrition assistance programs, as well as nutrition education programs. Despite the use of the guidelines over the past 30 years, recent challenges prompted Congress to question the process by which food and nutrition guidance is developed. This report assesses the process used to develop the guidelines; it does not evaluate the substance or use of the guidelines. As part of an overall, comprehensive review of the process to update the DGA, this first report seeks to discover how the advisory committee selection process can be improved to provide more transparency, eliminate bias, and include committee members with a range of viewpoints for the purpose of informing the 2020 cycle.
The National Academies of Sciences, Engineering, and Medicine last reviewed the state of the science on nutrition during pregnancy and lactation 30 years ago. The resulting consensus study reports from the Institute of Medicineâ€"Nutrition During Pregnancy (IOM, 1990) and Nutrition During Lactation (IOM, 1991)â€"summarized the scientific evidence and provided nutrient recommendations. In the decades since the release of these two reports, the body of evidence on the relationships between nutrition during pregnancy and lactation and maternal and infant health and chronic disease has continued to grow and evolve. At the same time, the demographics of the population have shifted, giving rise to new considerations. To explore the evidence that has emerged, the National Academies conducted a 2-day workshop in January 2020. This publication summarizes the presentations and discussions from the workshop.
The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) began 40 years ago as a pilot program and has since grown to serve over 8 million pregnant women, and mothers of and their infants and young children. Today the program serves more than a quarter of the pregnant women and half of the infants in the United States, at an annual cost of about $6.2 billion. Through its contribution to the nutritional needs of pregnant, breastfeeding, and post-partum women; infants; and children under 5 years of age; this federally supported nutrition assistance program is integral to meeting national nutrition policy goals for a significant portion of the U.S. population. To assure the continued success of the WIC, Congress mandated that the Food and Nutrition Service of the U.S. Department of Agriculture (USDA) reevaluate the program's food packages every 10 years. In 2014, the USDA asked the Institute of Medicine to undertake this reevaluation to ensure continued alignment with the goals of the Dietary Guidelines for Americans. In this third report, the committee provides its final analyses, recommendations, and the supporting rationale.
Over the past 20 years, public concerns have grown in response to the apparent rising prevalence of food allergy and related atopic conditions, such as eczema. Although evidence on the true prevalence of food allergy is complicated by insufficient or inconsistent data and studies with variable methodologies, many health care experts who care for patients agree that a real increase in food allergy has occurred and that it is unlikely to be due simply to an increase in awareness and better tools for diagnosis. Many stakeholders are concerned about these increases, including the general public, policy makers, regulatory agencies, the food industry, scientists, clinicians, and especially families of children and young people suffering from food allergy. At the present time, however, despite a mounting body of data on the prevalence, health consequences, and associated costs of food allergy, this chronic disease has not garnered the level of societal attention that it warrants. Moreover, for patients and families at risk, recommendations and guidelines have not been clear about preventing exposure or the onset of reactions or for managing this disease. Finding a Path to Safety in Food Allergy examines critical issues related to food allergy, including the prevalence and severity of food allergy and its impact on affected individuals, families, and communities; and current understanding of food allergy as a disease, and in diagnostics, treatments, prevention, and public policy. This report seeks to: clarify the nature of the disease, its causes, and its current management; highlight gaps in knowledge; encourage the implementation of management tools at many levels and among many stakeholders; and delineate a roadmap to safety for those who have, or are at risk of developing, food allergy, as well as for others in society who are responsible for public health.
On August 7â€"8, 2019, the National Academies of Sciences, Engineering, and Medicine hosted a public workshop in Washington, DC, to review the status of current and emerging knowledge about innovations for modern food systems and strategies for meeting future needs. The workshop addressed different perspectives on the topic of food systems and would build on a workshop on the topic of sustainable diets hosted by the Food Forum in August 2018. This publication summarizes the presentations and discussions from the workshop.
The obesity crisis in the United States disproportionately affects some demographic groups more than others. Contextual influences on obesity are complex and include an individual's weight-related behaviors and outcomes, the intermediate variables that influence these behaviors and outcomes, and broader, upstream historical, social, economic, physical, and policy contexts. The National Academies convened a workshop on April 1, 2019 to explore the history of health equity issues in demographic groups that have above-average obesity risk and to consider principles and approaches to address these issues as part of obesity prevention and treatment efforts. This publication summarizes the presentations and discussions from the workshop.
In September 2015, the National Academies of Sciences, Engineering, and Medicine's Food and Nutrition Board convened a workshop in Washington, DC, to discuss how communications and marketing impact consumer knowledge, skills, and behavior around food, nutrition, and healthy eating. The workshop was divided into three sessions, each with specific goals that were developed by the planning committee: Session 1 described the current state of the science concerning the role of consumer education, health communications and marketing, commercial brand marketing, health literacy, and other forms of communication in affecting consumer knowledge, skills, and behavior with respect to food safety, nutrition, and other health matters. Session 2 explored how scientific information is communicated, including the credibility of the source and of the communicator, the clarity and usability of the information, misconceptions/misinformation, and the impact of scientific communication on policy makers and the role of policy as a macro-level channel of communication. Session 3 explored the current state of the science concerning how food literacy can be strengthened through communication tools and strategies. This report summarizes the presentations and discussions from the workshop.
On August 1 and 2, 2018, the National Academies of Sciences, Engineering, and Medicine hosted a public workshop in Washington, DC, on sustainable diets, food, and nutrition. Workshop participants reviewed current and emerging knowledge on the concept of sustainable diets within the field of food and nutrition; explored sustainable diets and relevant impacts for cross-sector partnerships, policy, and research; and discussed how sustainable diets influence dietary patterns, the food system, and population and public health. This publication briefly summarizes the presentations and discussions from the workshop.
Older adults are a growing demographic group in the United States, and a range of physical, social, financial, and cultural factors affect their nutritional status. Metabolic and physiologic changes that accompany normal aging modify the nutritional requirements of older adults. An examination of evidence is needed to better understand how nutritional status is associated with aging and risk of mortality or chronic disease among older adults. Underpinning many, if not most, nutritional problems in older adults is socioeconomic status. Therefore, understanding access challenges to healthy food, including geographic, financial, and transportation barriers, also is needed to better understand how to meet the nutritional needs of older adults. On October 28-29, 2015, the Food and Nutrition Board convened a workshop, Meeting the Dietary Needs of Older Adults, in Washington, DC. Participants examined factors in the physical, social, and cultural environment that affect the ability of older adults to meet their daily dietary needs. This report summarizes the presentations and discussions from the workshop.
Physical activity has far-reaching benefits for physical, mental, emotional, and social health and well-being for all segments of the population. Despite these documented health benefits and previous efforts to promote physical activity in the U.S. population, most Americans do not meet current public health guidelines for physical activity. Surveillance in public health is the ongoing systematic collection, analysis, and interpretation of outcome-specific data, which can then be used for planning, implementation and evaluation of public health practice. Surveillance of physical activity is a core public health function that is necessary for monitoring population engagement in physical activity, including participation in physical activity initiatives. Surveillance activities are guided by standard protocols and are used to establish baseline data and to track implementation and evaluation of interventions, programs, and policies that aim to increase physical activity. However, physical activity is challenging to assess because it is a complex and multidimensional behavior that varies by type, intensity, setting, motives, and environmental and social influences. The lack of surveillance systems to assess both physical activity behaviors (including walking) and physical activity environments (such as the walkability of communities) is a critical gap. Implementing Strategies to Enhance Public Health Surveillance of Physical Activity in the United States develops strategies that support the implementation of recommended actions to improve national physical activity surveillance. This report also examines and builds upon existing recommended actions.
On December 5, 2017, the National Academies of Sciences, Engineering, and Medicine hosted a public workshop titled Nutrigenomics and the Future of Nutrition in Washington, DC, to review current knowledge in the field of nutrigenomics as it relates to nutrition. Workshop participants explored the influence of genetic and epigenetic expression on nutritional status and the potential impact of personalized nutrition on health maintenance and chronic disease prevention. This publication summarizes the presentations and discussions from the workshop.
Harmonized approaches to setting recommendations for safe and appropriate dietary intakes and nutritional interventions are critical to support the resolution of differences across countries in setting national and international nutrition standards; promote consistency in public and clinical health objectives; provide a mechanism for designing national and international food and nutrition policies; and enhance the transparency of national standards for trade and other regulatory actions that have economic, health, and safety implications. Consistent dietary intake recommendations cannot be made without first establishing a consistent approach to derive reference values for population-level nutrient intakes. This tool kit is designed to help global stakeholders, including those in low- and middle-income countries, participate more easily in the process of implementing, disseminating, and evaluating a consistent and homogeneous methodological approach to the nutrient reference value process.
The Food and Nutrition Board (FNB) of the National Academies of Sciences, Engineering, and Medicine was convened in 1940 in response to a request from the U.S. National Defense Advisory Commission to the National Academy of Sciences for aid in studying problems of nutrition in the United States. Today the FNB is the focal point for activities concerned with food, nutrition, and food safety, and their roles in health maintenance and disease prevention. Now in its 80th year, the FNB has continued its growth and expanded its reach both domestically and internationally, providing visionary leadership across a range of nutrition and food science issues toward the improvement of human health. In honor of its 80 years of service to the nation, the FNB convened a public symposium to review the origin and history, policy influence, and future directions of the FNB. This publication summarizes the presentations of the event.
The National Academies of Sciences, Engineering, and Medicine convened a public workshop in September 2017 to explore the evidence for achieving global harmonization of methodological approaches to establishing nutrient intake recommendations. Participants reviewed current nutrient intake recommendations, discussed the feasibility of harmonizing approaches to setting such recommendations globally, examined the development of principles by which they may be applied in diverse contexts that relate to individuals or populations, or regulatory purposes, and examined perceptions and acceptance of nutrient intake recommendations by different stakeholders. This publication summarizes the presentations and discussions from the workshop.
Since 1938 and 1941, nutrient intake recommendations have been issued to the public in Canada and the United States, respectively. Currently defined as the Dietary Reference Intakes (DRIs), these values are a set of standards established by consensus committees under the National Academies of Sciences, Engineering, and Medicine and used for planning and assessing diets of apparently healthy individuals and groups. In 2015, a multidisciplinary working group sponsored by the Canadian and U.S. government DRI steering committees convened to identify key scientific challenges encountered in the use of chronic disease endpoints to establish DRI values. Their report, Options for Basing Dietary Reference Intakes (DRIs) on Chronic Disease: Report from a Joint US-/Canadian-Sponsored Working Group, outlined and proposed ways to address conceptual and methodological challenges related to the work of future DRI Committees. This report assesses the options presented in the previous report and determines guiding principles for including chronic disease endpoints for food substances that will be used by future National Academies committees in establishing DRIs.
What foods should Americans eat to promote their health, and in what amounts? What is the scientific evidence that supports specific recommendations for dietary intake to reduce the risk of multifactorial chronic disease? These questions are critically important because dietary intake has been recognized to have a role as a key determinant of health. As the primary federal source of consistent, evidence-based information on dietary practices for optimal nutrition, the Dietary Guidelines for Americans (DGA) have the promise to empower Americans to make informed decisions about what and how much they eat to improve health and reduce the risk of chronic disease. The adoption and widespread translation of the DGA requires that they be universally viewed as valid, evidence-based, and free of bias and conflicts of interest to the extent possible. However, this has not routinely been the case. A first short report meant to inform the 2020 review cycle explored how the advisory committee selection process can be improved to provide more transparency, eliminate bias, and include committee members with a range of viewpoints. This second and final report recommends changes to the DGA process to reduce and manage sources of bias and conflicts of interest, improve timely opportunities for engagement by all interested parties, enhance transparency, and strengthen the science base of the process.
Harmonized approaches to setting recommendations for safe and appropriate dietary intakes and nutritional interventions are critical to support the resolution of differences across countries in setting national and international nutrition standards; promote consistency in public and clinical health objectives; provide a mechanism for designing national and international food and nutrition policies; and enhance the transparency of national standards for trade and other regulatory actions that have economic, health, and safety implications. Consistent dietary intake recommendations cannot be made without first establishing a consistent approach to derive reference values for population-level nutrient intakes. This tool kit is designed to help global stakeholders, including those in low- and middle-income countries, participate more easily in the process of implementing, disseminating, and evaluating a consistent and homogeneous methodological approach to the nutrient reference value process.
In September 2015, the National Academies of Sciences, Engineering, and Medicine's Food and Nutrition Board convened a workshop in Washington, DC, to discuss how communications and marketing impact consumer knowledge, skills, and behavior around food, nutrition, and healthy eating. The workshop was divided into three sessions, each with specific goals that were developed by the planning committee: Session 1 described the current state of the science concerning the role of consumer education, health communications and marketing, commercial brand marketing, health literacy, and other forms of communication in affecting consumer knowledge, skills, and behavior with respect to food safety, nutrition, and other health matters. Session 2 explored how scientific information is communicated, including the credibility of the source and of the communicator, the clarity and usability of the information, misconceptions/misinformation, and the impact of scientific communication on policy makers and the role of policy as a macro-level channel of communication. Session 3 explored the current state of the science concerning how food literacy can be strengthened through communication tools and strategies. This report summarizes the presentations and discussions from the workshop.
Recommended intake levels for nutrients and other dietary components were designed initially to prevent nutrient deficiency diseases in a given population, and the original methodological approach used to derive intake values did not include consideration for other applications. However, with the increasing globalization of information and the identification of a variety of factors specific to different population subgroups (e.g., young children and women of reproductive age) that influence their nutritional needs, there has been increasing recognition of the need to consider methodological approaches to deriving nutrient reference values (NRVs) that are applicable across countries and that take into account the varying needs of different population subgroups. There is a need for guidance and recommendations about methodological approaches, as well as their potential for application to an international process for the development of NRVs, and particularly for young children and women of reproductive age. Harmonization of Approaches to Nutrient Reference Values: Applications to Young Children and Women of Reproductive Age examines these issues and makes recommendations for a unified approach to developing NRVs that would be acceptable globally.
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