Abstract: Principles of nutrition science, guidelines for food choices and techniques for assessing nutrition information are the focuses in this second edition. Explanations are based on general biology; readers do not need a chemistry background. Chapters contain accepted information on nutrition, but controversial issues also are included. Evidence is presented for and against current nutritional claims, such as the relationship of additives, allergies or sugar to hyperactivity. The harm caused by infant formula to babies in developing countries, and trusting your doctor for nutritional advice are other examples of nutritional controversies. Chapters include foodfeatures which relate nutrition information to practical suggestions for shopping, eating out in restaurants, and food preparation. Self-study assignments allow readers to evaluate their own diet. In addition to basic nutrition information, food labeling, additives, and nutrition throughout the life cycle are discussed. Appendices include standard food tables, information on crude fiber content of foods and cholesterol and P/S ratios of food. (rm).