The World Health Organization initially identified three pillars: availability, access, and use and misuse. The World Summit on Food Security held in 2009 proposed four pillars instead. These are availability, access, utilization, and stability. A High-Level Panel of Experts for the Committee on World Food Security recommended in 2020 agency and sustainability to the pillars of food security. The six pillars of food security now include the following: availability, access, utilization, stability, agency, and sustainability.