This analysis helps to estimate the nutritional quality of the 2022 FDPIR food package 'as offered' using the Healthy Eating Index scoring algorithm. This will provide an update to the first HEI estimate of the 2014 FDPIR food package. The project also aims to estimate the HEIs of the food packages 'as delivered' to participants.

WIC Participant and Program Characteristics summarizes the demographic characteristics of WIC participants nationwide in April 2008, along with information on participant income and nutrition risk characteristics, a national estimate of breastfeeding initiation for WIC infants, and a description of WIC members of migrant farmworker families.

In 1991 and 1998, FNS conducted national studies of WIC vendors to determine the extent of vendor violation of program rules. After the 1998 study, FNS issued regulations to correct vendor practices. The 2005 study replicates the 1998 study to determine whether the regulations were effective, and to measure the frequency of vendor violations and the degree to which vendors charge accurate prices for WIC transactions.