This new fourth edition of the Nutrition and Diet Therapy Reference Dictionary covers all aspects of nutrition, including assessment of drug-nutrient interactions, laboratory interpretations, enteral and parenteral nutrition support, community and public health nutrition programs, nutrition throughout the life cycle, and such topics as nutrition and the immune system, nutrition labeling, chemical dependency, AIDS, and organ transplantation. Special features of the Dictionary are entries on 130 different diets (listed under D); nutrition therapy for more than 350 disorders, including inborn errors of metabo- lism; 145 drugs and their effects on nutrition; and more than 150 nutritional products with their main uses and composition. Of particular importance are topics of public health concerns for the 1990s and the year 2000, and dietary recommendations for prevention of major degenerative diseases such as obesity, coronary heart disease, hypertension, diabetes mellitus, and cancer. With more than 3000 carefully selected entries, the new Fourth Edition includes 380 new terms and more than 600 revised and expanded definitions. In choosing the words to be entered and defined, the authors used as their criterion the frequency of use or importance of a term in relation to nutrition. Definitions are cross-referenced to other word entries and the materials found in the Appendix to provide further details and information. All practitioners in the fields of nutrition and dietetics, as well as educators, students, and others interested in nutrition will find this handy desk reference particu- larly useful. It is easy-to-use and provides instant access to nutrition information.