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Studies on the evolutionary aspects of diet and molecular studies included in this volume indicate that human beings evolved on a diet that was balanced in the essential fatty acids (EFA). In fact, the ratio of omega-6/omega-3 EFA was 1/1 whereas present day diets in both developed and developing countries have a much higher ratio, between 5/1 and 50/1. Additional studies show that a high ratio of omega-6/omega-3 EFA is detrimental to health and may lead to the development of chronic diseases. Improving the dietary ratio by decreasing the omega-6 fatty acids and increasing the omega-3 fatty acids is essential for brain function and for the management of cardiovascular disease, arthritis and cancer. A ratio of 4/1 or less leads to lower dosage and to the reduction of adverse effects of drugs. This volume should be of interest to a large and varied audience of researchers in academia, industry, and government; cardiologists, geneticists, immunologists, neuroscientists, and cancer specialists; as well as nutritionists, dietitians, food scientists, agriculturists, economists and regulators.
Research on omega-3 fatty acids has come a long way since its beginnings in the middle 70's. Starting with studies on the role of omega-3 fatty acids in the secondary prevention of cardiovascular disease, interest soon turned to the mechanisms of and the need to balance the omega-6 to the omega-3 ratio for homeostasis and normal development. Today, it is widely accepted that docosahexaenoic acid (DHA) and arachidonic acid are essential for brain development during pregnancy, lactation and throughout the life cycle. It is also no longer controversial that DHA can affect brain function, mental health and behavior, and studies on supplemental DHA in age-related macular degeneration have revealed significant Interactions between DHA and genetic variants. Featuring contributions by leading scientists in the field, this publication discusses not only the role of omega-3 fatty acids in maintaining homeostasis, but also their importance in the prevention and management of neurodegenerative diseases associated with the aging process or genetic predisposition. It is thus not only of interest to nutritionists, dieticians or policy makers, but also to psychologists, physiologists, neuroscientists, psychiatrists, ophthalmologists, geneticists, neurologists, pedlatrlclans, obstetricians and geriatricians.
Leading academic and biomedical researchers comprehensively review the status of essential fatty acids (EFA) in nutrition, medicine, psychology, and pharmacology. Topics range from a discussion of EFA basic mechanisms to their effects on individual psychiatry and behavior, and include extensive coverage of pathology, DHA in CNS development, and phospholipid and fatty acid composition and metabolism. Comprehensive and forward-looking, Fatty Acids: Physiological and Behavioral Functions reviews and critically evaluates our current knowledge of EFA, setting the stage for oncoming wave of discovery about the biochemical and molecular functions of essential fatty acids, as well as their critical role in human physiology, immunology, and behavior.
This unique publication for the first time brings together scientists from academia, government and industry to discuss the role of omega-3 fatty acids in health, the need to reintroduce them into the food supply, the methods by which this can be accomplished and the state of research. With the domestication of animals, there has been a change in animal feeds, which in turn transformed the composition of meats, particularly the content of essential fatty acids. Changes similar to those in meats have occurred in the composition of eggs, poultry and in fish from aquaculture. Up-to-date reviews on the role of omega-3 fatty acids in health, cardiovascular disease, bone remodeling relative to osteoporosis and in patients with retinitis pigmentosa emphasize the need for a balance of omega-6 and omega-3 fatty acids in the food supply. The reintroduction of omega-3 fatty acids into food products is discussed, and the methods involved in their production as well as their metabolic effects on human beings and companion animals are outlined. Overall, the papers presented indicate the necessity to establish recommended daily intakes for both omega-6 and omega-3 fatty acids. Furthermore, there is a need to redefine food safety; changes in food composition must also be taken into consideration. This unique publication is a valuable source for physicians, nutritionists, dietitians, veterinarians and agriculturalists, as well as for all those concerned with aspects of food production, food technology, food policy and consumer issues.
This volume argues for the importance of essential nutrients in our diet. Over the last two decades there has been an explosion of research on the relationship of Omega-3 fatty acids and the importance of antioxidants to human health. Expert authors discuss the importance of a diet rich in Omega-3 Fatty acids for successful human growth and development and for the prevention of disease. Chapters highlight their contribution to the prevention and amelioration of a wide range of conditions such as heart disease, diabetes, arthritis, cancer, obesity, mental health and bone health. An indispensable text designed for nutritionists, dietitians, clinicians and health related professionals, Omega-3 Fatty Acids: Keys to Nutritional Health presents a comprehensive assessment of the current knowledge about the nutritional effects of Omega-3 fatty acids and their delivery in foods.
The Handbook of Lipids in Human Nutrition is a concise reference for professionals and students interested in the role of lipids in nutrition. Over 100 tables and illustrations provide quick access to the most current data available.
Exploration of changing human nutrition from evolutionary and social perspectives and its influence on health and disease, past and present.
The aim of this edited book is to provide health professionals, across a wide variety of specialisms, with a targeted access to evolutionary medicine. Throughout the book, the views of both medical and evolutionary scientists on the latest relevant research is presented with a focus on practical implications. The inclusion of boxes explaining the theoretical background as well as both a glossary for technical terms and a lay summary for non- specialists enable medical researchers, public health professionals, policy makers, physicians, students, scholars and the public alike to quickly and easily access appropriate information. This edited volume is thus relevant to anyone keen on finding out how evolutionary medicine can improve the health and well-being of people.
The publication at hand gives an outline of recent advances in both of these topics, including a general discussion on fatty acid nutrition amd metabolism. Moreover, issues such as vascular functions, inflammation, bone metabolism, cancer, obesity and lipoprotein metabolism are dealt with in this context. Finally, the book also contains new findings on bioactive lipids such as anandamide and related compounds, as well as on conjugated linoleic acid. Scientists interested in nutrition, cardiovascular disease, behavior and psychiatry as well as fatty acid metabolism and lipids in general will find this publication a most welcome source of information.
For more than half a century, the relationship between dietary factors and coronary heart disease (CHD) has been a major focus of health research. Contrary to the established view, current data suggest that dietary cholesterol is not a primary factor of or causes heart disease - with the possible exception of the genetic forms of familial hypercholesterolemias. For instance, recent clinical trials evaluating the effect of cholesterol-lowering drugs on the development of chronic heart failure, diabetes and stroke have yielded disappointing results. On the other hand, an unbalanced omega-6/omega-3 fatty acid ratio and a cholesterol intake not consistent with the amount during evolution seem to be causal factors in the development of CHD. A panel of international experts in genetics, nutrition, fatty acid, cholesterol, metabolism and coronary heart disease has contributed to this publication, summarizing and critically discussing for the first time the importance of evolutionary aspects of diet, the omega-6/omega-3 fatty acid ratio and cholesterol intake relative to health and CHD. They also propose measuring blood fatty acids in the population in order to define the risk of CHD and other chronic diseases. This book will be of interest to physicians (cardiologists, gerontologists, and pediatricians), nutritionists, dieticians, health care providers, scientists in industry and government and policy makers.