With the aim to improve clinicians' understanding of the important effects nutrition can have on maternal health and fetal and neonatal development, Maternal-Fetal Nutrition During Pregnancy and Lactation defines the nutritional requirements with regard to the stage of development and growth, placing scientific developments into clinical context.

Pregnancy is a viewed as a window to future health. With the birth of the developmental origins of human adult disease hypothesis, research and clinical practice has turned its attention to the influence of maternal factors such as health and lifestyle surrounding pregnancy as a means to understand and prevent the inter-generational inheritance of chronic disease susceptibility. Outcomes during pregnancy have long-lasting impacts on both women on children. Moreover, nutrition early in life can influence growth and the establishment of lifelong eating habits and behaviors. This Special Issue on “Nutrition during Pregnancy and Lactation: Implications for Maternal and Infant Health” is intended to highlight new epidemiological, mechanistic and interventional studies that investigate maternal nutrition around the pregnancy period on maternal and infant outcomes. Submissions may include original research, narrative reviews, and systematic reviews and meta-analyses.

Improving clinicians' understanding of effects nutrition can have on maternal health and fetal and neonatal development can have considerable impact on achieving a healthy pregnancy and reducing childhood morbidity. This book defines the nutritional requirements with regard to each stage of fetal development and growth, placing scientific developments into a clinical context. Clinicians and scientists discuss: how the fetus grows and what macro- and micronutrients it requires; what happens when there is nutrient deficiency and when placental development is abnormal; aspects of infant feeding, both with breast milk and formula milk. Specific problems encountered in pregnancy that pose a nutritional challenge are also considered, including pregnancy in teenagers, multiple pregnancies and pregnancy in those who are vegetarians or vegans. All doctors, health-care workers or scientists who either care for women, their newborn and growing infants, or who are involved in research in these areas, will find this to be essential reading.

On the basis of a comprehensive literature review and analysis, Nutrition During Lactation points out specific directions for needed research in understanding the relationship between the nutrition of healthy mothers and the outcomes of lactation. Of widest interest are the committee's clear-cut recommendations for mothers and health care providers. The volume presents data on who among U.S. mothers is breastfeeding, a critical evaluation of methods for assessing the nutritional status of lactating women, and an analysis of how to relate the mother's nutrition to the volume and composition of the milk. Available data on the links between a mother's nutrition and the nutrition and growth of her infant and current information on the risk of transmission through breastfeeding of allergic diseases, environmental toxins, and certain viruses (including the HIV virus) are included. Nutrition During Lactation also studies the effects of maternal cigarette smoking, drug use, and alcohol consumption.

Explaining the practical implications of new discoveries in 'life-course biology', Nutrition and Lifestyle for Pregnancy and Breastfeeding is an informed resource on factors that affect offspring development. The impact of parental lifestyle and behavioural choices influence not only fetal development and birth outcomes, but also postnatal development, yet guidance on appropriate diet, behaviour, and exposures during pregnancy is often confusing and contradictory. With accessible explanations of the latest scientific research, and clear summaries and recommendations, this book is a valuable and authoritative guide for all levels of health care providers. The authors provide an overview of the background evidence, highlighting the importance of lifestyle choices prior to and during pregnancy. In-depth discussions of nutritional and lifestyle factors that impact on pregnancy and offspring outcomes are based on the latest research and exploration of key scientific studies. Nutrition and Lifestyle for Pregnancy and Breastfeeding is a manual offering both scientific and clinical evidence to empower health care providers and ensure they have the information necessary to confidently care for prospective and new parents.

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.

Nutrition in Pregnancy and Lactation provides balanced, comprehensive coverage of nutrition needs during and between the times of these unique physiologic events, as well as offering extensive practical information on counseling and support for breastfeeding mothers and their infants.

Almost every aspect of energy and nutrient metabolism is altered by hormonal and other physiological changes during pregnancy and lactation. While it is evident that hormonal adjustments affect nutrient requirements, these are rarely considered when nutrient recommen dations are made for pregnant or lactating women, and often neglected during evaluation of nutritional status. In addition, changes in nutrient metabolism during the stages of pregnancy and oflactation are usually considered separately, while in reality events during pregnancy can have a major influence on nutritional status and nutrient requirements during lactation. The purpose of this volume is to describe changes in the metabolism of important nutrients during pregnancy and lactation, including the physiological basis for these changes and their implications for nutrient requirements and assessment. Authors have considered such issues as inter-relationships between endocrine changes and nutrient metabolism at the tissue, cellular and molecular level; alterations in nutrient binding proteins; the efficiency of nutrient absorp tion and retention; and the impact on maternal as well as fetal nutritional status. Another unique aspect of this book is the focus on pregnancy and lactation as a continuum.

In pregnancy, maternal nutrition sustains and nourishes the developing child. Imbalances in either the direction of nutritional excess or deficiency can have adverse consequences for child health. In addition, more research now suggests that good pregnancy nutrition influences child health beyond pregnancy and delivery. This includes modifying the risk of child health outcomes as they enter childhood and adulthood through influences on placental development, hormonal pathways, and organ structure and function. Poor pregnancy nutrition may also compromise maternal health during pregnancy, which may have long-term consequences for women’s health. Understanding the biological and social mechanisms operating during pregnancy can help in the design of better clinical and public health interventions. This Special Issue on “The Role of Pregnancy Nutrition in Maternal and Offspring Health” includes etiological and mechanistic studies of pregnancy nutrition with short- and long-term maternal and child health outcomes, including original research, narrative reviews, and systematic reviews and meta-analyses. Together, this body of work provides important insights into the influence of dietary patterns, food groups, and nutrients on pregnancy outcomes, and long-term neurodevelopmental, respiratory, and metabolic health in the children. It also highlights nutritional consequences for specific groups of women, including those with pregnancy complications and eating disorders.

As women of childbearing age have become heavier, the trade-off between maternal and child health created by variation in gestational weight gain has become more difficult to reconcile. Weight Gain During Pregnancy responds to the need for a reexamination of the 1990 Institute of Medicine guidelines for weight gain during pregnancy. It builds on the conceptual framework that underscored the 1990 weight gain guidelines and addresses the need to update them through a comprehensive review of the literature and independent analyses of existing databases. The book explores relationships between weight gain during pregnancy and a variety of factors (e.g., the mother's weight and height before pregnancy) and places this in the context of the health of the infant and the mother, presenting specific, updated target ranges for weight gain during pregnancy and guidelines for proper measurement. New features of this book include a specific range of recommended gain for obese women. Weight Gain During Pregnancy is intended to assist practitioners who care for women of childbearing age, policy makers, educators, researchers, and the pregnant women themselves to understand the role of gestational weight gain and to provide them with the tools needed to promote optimal pregnancy outcomes.