1 The Challenges of Research into Nutrition and Aging: Introduction to a Multifaceted Problem -- I · Nutrition and Age-Related Changes in Body Function -- 2 Nutrition and Aging in Animal Models -- 3 Aging and the Digestive System -- 4 Nutrition and Immune Function in the Elderly -- 5 Exercise and Nutrition in the Elderly -- II · Nutrient Needs of the Elderly -- 6 Energy Needs of the Elderly: A New Approach -- 7 Protein Nutriture and Requirements of the Elderly -- 8 Calcium Nutrition and Its Relationship to Bone Health -- 9 Trace Elements in the Elderly: Metabolism, Requirements, and Recommendations for Intakes -- 10 Vitamin Nutriture and Requirements of the Elderly -- 11 Role of Fiber in the Diet of the Elderly -- III · Other Aspects of the Nutrient Status of the Elderly -- 12 Factors Affecting Nutritional Status of the Elderly -- 13 Anthropometric Approaches to the Nutritional Assessment of the Elderly -- 14 Drug-Nutrient Interactions in the Elderly.