As governments develop policies to achieve SDG 2 in rapidly urbanizing countries, the need to pay particular attention to the role of the informal economy, non-food issues, pro-poor pricing structures and healthy food consumption patterns will increase. The case studies in Mexico, China, Kenya and India have highlighted important food security challenges facing urban dwellers and how to overcome them by targeting existing food systems such as supermarkets, the informal economy and PDSs. While local context will dictate the best practice approach, this brief provides general recommendations for national governments in the Global South to promote sustainable urban food security.