Food security is defined when all people, at all times, have physical, social and economic access to a sufficient quantity of safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life (FAO 2008). While broadly considered to have four key dimensions: food availability, food access, food utilisation and food stability, two new dimensions have recently been added: sustainability and agency. Looking at food security within Indonesia, this paper will explore some of the internal and external factors impacting food security and propose how, at multiple levels, a holistic food system planning approach can address many of the problems.