National WIC Association

WIC Outcomes

Hundreds of studies show that WIC helps improve the health of pregnant women, infants, and children up to age 5.

Fast Facts


The percentage of pregnant women that enroll in WIC during their first trimester of pregnancy.


The percentage of infants born in the U.S. who are served by WIC.

Related Blog Posts

January 23, 2014
Celebrating 40 Years of Strengthening Families

Watch our infographic videos created to celebrate WIC's 40th anniversary!

November 26, 2013
WIC Voices Ring Loud and Clear

Giving thanks to WIC participants willing to share their voices.

» view more


Related Research

January 1, 2012
Effects of federal nutrition program on birth outcomes

The authors examined the impact of the WIC Program on birth outcomes. They found that rather than affecting average outcomes, WIC was more effective in reducing the probability of high-risk births, for example, very premature and low-birthweight babies. The potential benefits of the WIC Program can be realized by enhancing its focus on more disadvantaged mothers.

August 1, 2011
Can targeted transfers improve birth outcomes? Evidence from the introduction of the WIC Program

This study explored the relationship between participation in the WIC Program and birth outcomes. The authors analyzed whether WIC participation increased the average birthweight and decreased the number of low-birthweight births. Based on the results, WIC initiation raised the average birthweight by 2 grams and raised it by 7 grams among infants born to mothers with low education levels.

» view more

Why It Matters

  • Preterm births cost the U.S. over $26 billion a year.
  • Poor nutrition during early childhood increases the chance of anemia, limits a child’s ability to learn, and adds to health care costs.
  • WIC has been shown to yield better birth outcomes; increase breastfeeding rates; increase key nutrients in the diet; and help ensure adequate growth and development.

NWA Resources


Related Links