The SUN Networks are a unique element of the Movement's approach. They are described as "a collection of national movements led by governments committed to scaling up nutrition impact and results, along with partners aligned to support their goals." In 2018, ENN documented the presence, make up and activities of SUN Country Networks in 17 SUN countries categorised as fragile and conflict-affected states (FCAS). More information can be found in this snap shot of developments and progress: Mapping SUN Movement Networks in 17 fragile and conflict-affected states.

Several articles on the state of networks have also appeared in NEX and FEX as well as the MediaHub. These include, but are not limited to the following: