Havens EK, et al. Federal nutrition program changes and healthy food availability. Am J Prev Med. Oct 2012;43(4):419-422.
This study compared products stocked before and after the implementation of the revised WIC food packages in WIC-authorized and non-WIC-authorized stores. After implementation, WIC-authorized stores improved their inventory of healthier foods, such as fresh fruits and vegetables, lower-fat milk, whole-grain bread, and brown rice.