Characterizing fiber as the Cinderella nutrient of the early 20th century, food, health, and nutrition scientists from around the world assemble a great deal of data, both in text and tables, about the relevant chemistry, analytical methodologies, physiological and biochemical aspects, clinical and epidemiological studies, and consumption patterns. Though much of the material has been revised and updated since the 1985 and 1992 editions, some has been retained as classical because it has historical value or has data that should be available in such a broad guide even if was collected some years ago. Among the new chapters are discussions of the crucial role of associated phytochemicals.