Encyclopedia of Diet: A Treatise on the Food Question, Vol. 1 is a comprehensive and authoritative reference work that delves deeply into the science, history, and practical aspects of human nutrition and dietetics. Compiled by Eugene Christian, a noted expert in the field, this first volume of the multi-part series offers an exhaustive exploration of the fundamental principles of diet, the physiological effects of various foods, and the role of nutrition in maintaining health and preventing disease. Drawing on a wide range of scientific studies, historical sources, and practical experience, the book covers topics such as the composition and classification of foods, the processes of digestion and assimilation, the nutritional needs of different age groups, and the impact of diet on physical and mental well-being. The volume is organized in an encyclopedic format, making it easy for readers to find detailed information on specific foods, nutrients, and dietary practices. It includes thorough discussions of fruits, vegetables, grains, meats, dairy products, and other food groups, as well as advice on food selection, preparation, and preservation. The book also addresses contemporary dietary controversies and misconceptions, offering evidence-based guidance for making informed choices about what to eat. With its clear, accessible language and wealth of practical advice, Encyclopedia of Diet: A Treatise on the Food Question, Vol. 1 serves as an invaluable resource for health professionals, students, and anyone interested in the science of nutrition and the art of healthy living.