This was a a lecture delivered by Marion Nestle; Paulette Goddard Professor in the Department of Nutrition, Food Studies, and Public Health and Professor of Sociology at New York University. This lecture was given on the 2nd July 2012 as part of the 2nd Annual LCIRAH Agri-Health Workshop entitled: The Role of Agricultural and Food Systems Research in Combating Chronic Disease for Development. Organised by the London International Development Centre (LIDC), recorded at the Brunei Gallery, SOAS, University of London.  Although it was done in 2012, the information is still valid and worthwhile.  It's a long presentation, so make sure you have an hour to dedicate to watching it.