This fourth edition brings together a diverse range of experts in nutrition-related areas to discuss recent thinking and discoveries in nutrition, especially in relation to topics that have the greatest capacity to improve human health and nutritional implementation. An overview of nutrition science in the third decade of the twenty-first century reveals that much water has flown under the bridge of the advancing river that is nutrition research and practice. With these large accumulations of developments in the field of nutrition, the need for a new edition of this book is obvious. Our vastly improved nutrition knowledge gives us the capability of preventing a sizable fraction of the chronic diseases that afflict the people of our world, but only if these discoveries can be translated into effective action at the population level. Nutritional Health endeavours to address the needs of those who would most benefit from up-to-date information on key areas in the field of nutrition. The book starts with a discussion of the nature of nutritional research then moves into an overview of the most important aspects of the complex interactions between diet, its nutrient components, and their impacts on disease states, and on those health conditions that increase the risk of chronic diseases. Parts three and four discuss diet and include new chapters on the Mediterranean diet, the DASH diet, the flexitarian diet, and the low-carbohydrate diet. The final two parts of the book discuss emerging trends in nutrition science, such as gut microbiome and sustainable diet, and areas of controversy in nutrition, such as the influence of the food industry and dietary supplements. Up to date and comprehensive, Nutritional Health: Strategies for Disease Prevention, Fourth Edition offers physicians, dietitians, and nutritionists a practical, data-driven, integrated resource to help evaluate the critical role of nutrition.