Gabriela Buccini (Social and Behavioral Health) is a co-author of a newly published article, in the Int. J. Environ. Res. Public Health. The Brazilian Breastfeeding and Complementary Feeding Strategy—Estratégia Amamenta e Alimenta Brasil (EAAB) aims to promote optimal breastfeeding (BF) and complementary feeding (CF) practices through the training of primary health professionals. Competition among health priorities and programs is one of the organizational contextual barriers to consolidating the implementation of the EAAB. This study evaluated the influence of the organizational context on the degree of implementation of the EAAB in the Federal District, Brazil. Lack of specific funding, monitoring of BF and CF practices, and compliance with certification criteria are the main challenges for the EAAB’s sustainability.