Systems Approach to Modelling Food Sustainability: From Concepts to Practice - Presentation by Ariella Helfgott. This presentation was given as part of the 'Metrics of Sustainable Diets and Food Systems Symposium, co-organized by Bioversity International and CIHEAM-IAMM, November 4th -5th 2014, Agropolis International, Montpellier Visit 'Metrics of Sustainable Diets and Food Systems' Symposium webpage. http://www.bioversityinternational.org/metrics-sustainable-diets-symposium/