Five years ago, Mexico led the world in per-capita consumption of Coca-Cola and other sugar-sweetened beverages. Now, it’s consumption rate is stagnant – even as rates in most other developing countries keep soaring. What explains this sudden shift toward health? Many say it is the result of a tax – a 10 percent excise tax on sugar sweetened beverages (SSBs). That the tax became policy owes much to the work of Barry M. Popkin, PhD, W.R. Kenan Jr. Distinguished Professor of nutrition and director of UNC’s Global Food Research Program, and to his collaboration with the Mexican National Institute of Public Health (INSP) and key nongovernmental organizations.