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Resource | Research and Data | Nutrition Education WIC Nutrition Education Study: Phase II Final Report

Phase II was a methodological study, conducted in six sites during 2015–2016, to test an approach to determine its feasibility for a national evaluation.

09/21/2018
Resource | Research and Data | Impacts/Evaluations WIC Medicaid II Feasibility Study: Final Report

The USDA Food and Nutrition Service’s 1990 WIC Medicaid Study I found that prenatal WIC participation was associated with improved birth outcomes and savings in Medicaid costs. A 2003 study by Buescher, et al., found that WIC participation during childhood was associated with increased health care utilization and Medicaid costs, and concluded that WIC enhanced children’s linkages to the health care system.

09/21/2018
Resource | Research and Data | Assessing/Improving Operations WIC Participant and Program Characteristics 2016

WIC Participant and Program Characteristics 2016 (PC 2016) summarizes the demographic characteristics of participants in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) nationwide in April 2016. 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. PC 2016 is the most recent in a series of reports generated from WIC state management information system data biennially since 1992.

04/20/2018
Resource | Research and Data | Breastfeeding WIC Infant and Toddler Feeding Practices Study 2 (ITFPS-2): Second Year Report

The WIC Infant and Toddler Feeding Practices Study 2 (WIC ITFPS-2)/ “Feeding My Baby” Study captures data on caregivers and their children over the first 5 years of the child’s life after WIC enrollment to address a series of research questions regarding feeding practices, associations between WIC services and those practices, and the health and nutrition outcomes of children receiving WIC.

04/20/2018
Resource | Research and Data | Breastfeeding National and State-Level Estimates of WIC Eligibles and Program Reach in 2015

This report, the latest in a series of annual reports on WIC eligibility, presents 2015 national and state estimates of the number of people eligible for WIC benefits and the percents of the eligible population and the US population covered by the program, including estimates by participant category.

02/28/2018
Resource | Research and Data | Participation Characteristics The WIC Participant and Program Characteristics 2012: Food Package Report

The WIC Participant and Program Characteristics 2012: Food Package Report is a supplement to the WIC Participant and Program Characteristics 2012 biennial report. The Food Package Report describes the content of WIC food packages based on information on the packages or prescriptions issued to WIC participants in April 2012. This report is a new report and should be of interest to researchers at USDA, academics, and others who study or have interest in the WIC program and nutrition.

11/12/2014
Data Visualization
Estimates of WIC Eligibility and Program Reach

Each year, FNS estimates the number of eligible individuals for WIC during an average month of the calendar year. FNS uses estimates of the number of individuals eligible for WIC and the number likely to participate to better predict future funding needs, measure WIC performance, and identify potentially unmet nutrition assistance needs.

11/03/2014
Resource | Research and Data | Demonstrations Report on the Summer Food for Children Demonstration Projects for FY 2013

This Congressional report summarizes the implementation and evaluation of two approaches tested in the summers of 2011 through 2013. 

03/31/2014
Resource | Research and Data | Assessing/Improving Operations WIC Participant and Program Characteristics 2012

This report is a census of women, infants, and children who were participating in the WIC program in April, 2012. The report includes information on participant income and nutrition risk characteristics, and estimates breastfeeding initiation rates for WIC infants.

12/11/2013
Resource | Research and Data | Payment Accuracy and Program Integrity 2013 WIC Vendor Management Study

This study is part of a larger FNS effort to ensure WIC program integrity and to comply with the Improper Payments Information Act of 2002 which requires FNS to estimate improper payments in its programs.

11/26/2013
Page updated: September 16, 2025