Across Africa and Asia, the estimated impact of undernutrition on gross domestic product (GDP) is 11% every year, according to the report -- worse than the annual economic downturn caused by the global financial crisis of 2008 to 2010. <br /><br />Pictured here, people water seedlings at a food program run by NGO's World Vision International and the UN's World Food Program in September in Zomba, Malawi.