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Annual Review of Nutrition - Early Publication
Reviews in Advance appear online ahead of the full published volume. View expected publication dates for upcoming volumes.
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Adverse Food Reactions: Physiological and Ecological Perspectives
First published online: 09 May 2024More LessWhile food is essential for survival, it can also cause a variety of harmful effects, ranging from intolerance to specific nutrients to celiac disease and food allergies. In addition to nutrients, foods contain myriads of substances that can have either beneficial or detrimental effects on the animals consuming them. Consequently, all animals evolved defense mechanisms that protect them from harmful food components. These “antitoxin” defenses have some parallels with antimicrobial defenses and operate at a cost to the animal's fitness. These costs outweigh benefits when defense responses are exaggerated or mistargeted, resulting in adverse reactions to foods. Additionally, pathological effects of foods can stem from insufficient defenses, due to unabated toxicity of harmful food components. We discuss the structure of antitoxin defenses and how their failures can lead to a variety of adverse food reactions.
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Helminth Infections and Diabetes: Mechanisms Accounting for Risk Amelioration
First published online: 09 May 2024More LessThe global prevalence of type 2 diabetes is increasing rapidly, with an anticipated 600 million cases by 2035. While infectious diseases such as helminth infections have decreased due to improved sanitation and health care, recent research suggests a link between helminth infections and type 2 diabetes mellitus (T2D), with helminths such as Schistosoma, Nippostrongylus, Strongyloides, and Heligmosomoides potentially mitigating or slowing down T2D progression in human and animal models. Helminth infections enhance host immunity by promoting interactions between innate and adaptive immune systems. In T2D, type 1 immune responses are suppressed and type 2 responses are augmented, expanding regulatory T cells and innate immune cells, particularly type 2 immune cells and macrophages. This article reviews recent research shedding light on the favorable effects of helminth infections on T2D. The potential defense mechanisms identified include heightened insulin sensitivity and reduced inflammation. The synthesis of findings from studies investigating parasitic helminths and their derivatives underscores promising avenues for defense against T2D.
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Interactions of Nutrition and Infection: The Role of Micronutrient Deficiencies in the Immune Response to Pathogens and Implications for Child Health
First published online: 09 May 2024More LessApproximately five million children die each year from preventable causes, including respiratory infections, diarrhea, and malaria. Roughly half of those deaths are attributable to undernutrition, including micronutrient deficiencies (MNDs). The influence of infection on micronutrient status is well established: The inflammatory response to pathogens triggers anorexia, while pathogens and the immune response can both alter nutrient absorption and cause nutrient losses. We review the roles of vitamin A, vitamin D, iron, zinc, and selenium in the immune system, which act in the regulation of molecular- or cellular-level host defenses, directly affecting pathogens or protecting against oxidative stress or inflammation. We further summarize high-quality evidence regarding the synergistic or antagonistic interactions between MNDs, pathogens, and morbidity or mortality relevant to child health in low- and middle-income countries. We conclude with a discussion of gaps in the literature and future directions for multidisciplinary research on the interactions of MNDs, infection, and inflammation.
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Does Maternal Diet Influence Future Infant Taste and Odor Preferences? A Critical Analysis
First published online: 09 May 2024More LessThe dietary choices a mother makes during pregnancy offer her developing fetus its earliest exposure to the family's culinary preferences. This comprehensive literature review synthesizes five decades of research, which has provided valuable insights into fetal flavor learning. Converging evidence across various species supports the functionality of fetal chemoreceptive systems by the end of gestation, enabling the detection of an extensive array of chemosensory cues derived from the maternal diet and transmitted to the amniotic fluid. The fetus effectively encodes these flavors, resulting in their enhanced acceptance after birth. While existing studies predominantly concentrate on fetal learning about odor volatiles, limited evidence suggests a capacity for learning about gustatory (i.e., taste) properties. Examining whether these prenatal odor, taste, and flavor experiences translate into enduring shifts in dietary behaviors beyond weaning remains a crucial avenue for further investigation.
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Biosynthesis and Metabolism of ApoB-Containing Lipoproteins
First published online: 18 April 2024More LessRecent advances in human genetics, together with a substantial body of epidemiological, preclinical and clinical trial evidence, strongly support a causal relationship between triglyceride-rich lipoproteins (TRLs) and atherosclerotic cardiovascular disease. Consequently, the secretion and metabolism of TRLs have a significant impact on cardiovascular health. This knowledge underscores the importance of understanding the molecular mechanisms and regulation of very-low-density lipoprotein (VLDL) and chylomicron biogenesis. Fortunately, there has been a resurgence of interest in the intracellular assembly, trafficking, degradation, and secretion of VLDL, leading to many ground-breaking molecular insights. Furthermore, the identification of molecular control mechanisms related to triglyceride metabolism has greatly advanced our understanding of the complex metabolism of TRLs. In this review, we explore recent advances in the assembly, secretion, and metabolism of TRLs. We also discuss available treatment strategies for hypertriglyceridemia.
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Unhealthy Food and Beverage Marketing to Children in the Digital Age: Global Research and Policy Challenges and Priorities
First published online: 17 April 2024More LessFood and nonalcoholic beverage marketing is implicated in poor diet and obesity in children. The rapid growth and proliferation of digital marketing has resulted in dramatic changes to advertising practices and children's exposure. The constantly evolving and data-driven nature of digital food marketing presents substantial challenges for researchers seeking to quantify the impact on children and for policymakers tasked with designing and implementing restrictive policies. We outline the latest evidence on children's experience of the contemporary digital food marketing ecosystem, conceptual frameworks guiding digital food marketing research, the impact of digital food marketing on dietary outcomes, and the methods used to determine impact, and we consider the key research and policy challenges and priorities for the field. Recent methodological and policy developments represent opportunities to apply novel and innovative solutions to address this complex issue, which could drive meaningful improvements in children's dietary health.
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A Black American Nutrition Scholar and Advocate: My Journey
First published online: 11 April 2024More LessI started my journey as a nutrition scholar in 1974 when I began PhD studies at Cornell University. My journey has been rich with opportunity. I engaged in research on diet-related risks for cardiovascular diseases, diabetes, and cancer, partly motivated by my strong commitment to addressing health disparities affecting Black Americans. Obesity became my major focus and would eventually involve both US and global lenses. This focus was also linked to other dietary intake issues and health disparities and drew on knowledge I had gained in my prior study and practice of social work. I positioned myself as a bridge builder across nutrition, epidemiology, and public health, advocating for certain new ways of thinking and acting in these spheres and in the academy itself. Life skills honed during my formative years living within racially segregated contexts have been critical to any successes I have achieved.
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