About every 7 years, FNS performs a nationally representative study to examine the extent of error and abuse among food vendors authorized to accept WIC vouchers. The last bookend study was the 2005 WIC Vendor Management Study, which used fiscal year 2005 expenditure data to derive an estimate for 2004. Between bookend studies, there is a need to derive annual estimates of the level of improper payments for compliance with the Improper Payments Information Act of 2002. The purpose of the subsequent annual studies was to provide annual updates to the bookend studies using the developed aging methodology.

This report, the first of three, addresses the first objective of the study, which is to explore the characteristics and experiences of WIC participants.

In 2006, FNS asked the Institute of Medicine to review the WIC food packages. The IOM proposed major changes to improve nutrition and encourage breastfeeding but also expressed the concern that changes related to partial breastfeeding may have unintended consequences. The IOM recommended that FNS conduct an impact study evaluating the birth month breastfeeding changes to the WIC food packages. 

This report begins with an overview of the WIC program, including its administrative structure and benefits, and a detailed description of the literature search protocol used to identify the studies included.

This report offers updated estimates of the population that met these criteria and was eligible for WIC benefits in each of the years 2000 through 2009. This report includes some new estimates not included in previous reports: (1) estimates of the number of eligibles and coverage rates by state; (2) updated estimates in U.S. territories; (3) confidence intervals; and (4) estimates of eligible children by single year of age.

WIC Participant and Program Characteristics summarizes the demographic characteristics of nationwide participants in April 2010. It includes information on participant income and nutrition risk characteristics, estimates breastfeeding initiation rates for WIC infants, and describes WIC members of migrant farm-worker families.

Summer Electronic Benefits Transfer For Children:Early Experiences through June 2011 of the Proof-of-Concept Year Contract #: AG-3198-C-11-0002

This study describes some of the choices state agencies made as they exercised the flexibility offered during the implementation and describes the resulting food packages.

This study provides a comprehensive and systematic picture of the implementation of the Loving Support Peer Counseling Program. Phase I, the Implementation Study, describes the process of the Loving Support Peer Counseling Program implementation in those States that accepted breastfeeding peer counseling grants. Phase II, the Impact Study, will address the research question of what intensity of peer counseling is necessary to increase duration of breastfeeding once the program has met the standards of the FNS model.

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.