Abstract: This five volume report evaluates the WIC program and its activities. Volume I summarizes the results of the overall study, volumes II and III contain the technical report while volumes IV and V contain the appendixes. Topics include: objectives and design of the WIC program; effect of the WIC program on the diet of women, infants, and children; effect of WIC benefits on fetal and childhood growth, development, and survival; effect of WIC program participation on use of health services and health promoting behavior; and effect of WIC benefits on family food expenditures.