Given that the emphasis on enhancing agriculture’s impact on nutrition is relatively new, some key knowledge gaps exist on the relative mix of components and the extent of their integration that make implementation most effective. The institutional aspects of programme delivery, technical capacities and inter-sectoral collaboration required are also not well understood. Questions remain regarding the design and implementation of nutrition education for behaviour change and what makes such interventions work, how they can be sustained and scaled up, and at what cost? Much work remains to be done to know exactly what to do and how to do it, and to determine where the greatest opportunities are. In other words, it is important to know which type of programmes deliver the greatest benefit to target beneficiaries and are likely to have the greatest impact.