Organization of this workshop was suggested by the Subcommittee on the Interactions of Nutrition and Infection of the Food and Nutrition Board, National Academy of Sciences/National Research Council (NAS/NRC). The meeting was convened in Guatemala City at the Institute of Nutrition of Central America and Panama (INCAP) in January 1974 as the first of many events marking the 25th anniversary of the founding of the institute. We were very pleased to participate in this workshop, because each of us has had a long and close relationship with INCAP. The success of the meeting, documented in these pages, is a tribute to this great institution of nutritional research where many of the ideas to which the workshop addressed itself originated.
The following persons participated in the workshop: Juan Rodolfo Aguilar, MD, División de Nutrición Aplicada, INCAP; Javier Aguja, MD, Departamento de Pediatria, Hospital General del IGSS, Guatemala City; Charles