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Resource | Research and Data | Payment Accuracy and Program Integrity A Comparison of WIC Vendor Management Practices in 1991 and 1998

FNS published “The WIC Vendor Management Study, 1998” in July 2001 which examined, in part, the extent to which retail grocers, defined as WIC “vendors” were violating program rules and regulations. The 1998 study is a follow-up to the “WIC Vendor Issues Study, 1991” published by FNS in May 1993. 

05/01/2003
Resource | Research and Data | Participation Characteristics Adolescent WIC Participants Study

This study was designed to describe the characteristics of adolescent women in WIC, as well as to identify their special needs, such as nutrition education, referral to other agencies, and their satisfaction with the services they received. 

05/28/2002
Resource | Research and Data | Food/Nutrient Analysis Analysis of WIC Food Package Prescriptions, 1998-2002

The purpose of this report is to illustrate the types and amounts of foods being prescribed within the WIC food package for each category of participants. This report does not provide information on redemption of the food prescriptions, or on actual food consumption; at this time, comprehensive data are available only on food prescriptions.

04/01/2006
Resource | Research and Data | Breastfeeding Breastfeeding Intervention Design Study

While a great deal of breastfeeding promotion and support is happening in WIC at both the state and local levels, there has been no systematic effort to evaluate what might work best in the WIC setting. Within this context, FNS  contracted for a breastfeeding intervention design study with the following goals: Identify interventions to increase the incidence, duration and intensity of breastfeeding among women participating in WIC; and design an evaluation plan to examine the implementation and effectiveness of these interventions.

08/30/2004
Basic page Reauthorization Application Sign-In

If you received a letter from FNS telling you that store(s) you own are due for reauthorization, sign in to access your reauthorization application.

02/10/2021
Resource | Research and Data | Food/Nutrient Analysis Diet Quality of American Young Children by WIC Participation Status: Data from the National Health and Nutrition Examination Survey, 1999-2004

This study uses the most recent data from the National Health and Nutrition Examination Survey (NHANES) to examine the diets of children who received WIC benefits. The report compares the diets of WIC-participant children to the diets of income-eligible nonparticipant children and higher income children who were not eligible for WIC benefits. 

07/01/2008
Resource | Research and Data | Food/Nutrient Analysis Dietary Risk Assessment in the WIC Program

This is a report of the National Academies' Institute of Medicine (Food and Nutrition Board), published here by permission. This report seeks to evaluate the use of various dietary assessment tools and to make recommendations for their use in identifying individuals who are at dietary risk.

06/01/2002
Resource | Research and Data | Participation Characteristics Dynamics of WIC Program Participation by Infants and Children, 2001 to 2003

This report provides information on the participation patterns of infants and children who were enrolled in WIC from fiscal years 2001 through 2003.

04/01/2009
Resource | Research and Data | Participation Rates Estimating the Number of People Eligible for WIC and the Full-Funding Participation Rate: A Review of the Issues

This report reviews recent approaches to estimating the numbers of persons eligible for and participating in WIC. It also describes issues concerning these estimates that may be worthy of review and synthesizes research on these issues.

02/12/1999
Resource | Research and Data | Nutrition Education Fit WIC: Programs to Prevent Childhood Overweight in Your Community

Fit WIC can help the nation’s premier early childhood food and nutrition program work more effectively to reduce and prevent unhealthy weight among our children.

05/01/2005
Page updated: October 08, 2018