Exposure to factors related to pregnant and recently delivered women’s households and health services could optimize maternal nutrition practices and the delivery of maternal nutrition interventions.

This article demonstrates that exposure to interventions matters for impact, but the combination of behavior change interventions and number of interpersonal counseling contacts required to support behavior change in infant and young child feeding are context-specific.

This article demonstrated that recipients in the Phase I intensive intervention, which provided interpersonal counseling, community mobilization, and mass media campaigns, mobilized additional resources to improve diets.

Large-scale behavior change interventions, delivered through a variety of platforms – government health systems, community-based platforms, and mass media – had substantial impacts in Bangladesh, Ethiopia, and Vietnam.

Interaction within mothers’ social networks, reinforced by promoting positive social norms for appropriate behaviors, can affect IYCF practices, according to this study in Bangladesh.

Front-line workers (FLWs) are necessary to deliver large-scale interventions to improve maternal and child nutrition. However, low and middle-income countries (LMICs) face issues of FLW performance in service delivery, knowledge, and motivation.