Healthy Eating Research supported this special issue of Nutrients focused on examining the influence of WIC nutrition policies on the nutritional status, dietary behavior, and health outcomes of participants. There are a number of policies embedded within the WIC program that can influence the nutritional status of the participants. These include nutrition policies related to breastfeeding promotion, nutrition education programming, nutrition education delivery, the nutritional value of the approved food items, and food store authorization. Modified policies were put in place in response to the COVID-19 pandemic, which made it difficult for WIC participants to access services. The papers in this special issue examine such topics as program participants, online ordering, benefit redemption, and breastfeeding outcomes.