The number of undernourished people in developing countries has fallen by 17 percent since 1990-92, the United Nation's food agency reported.

Yet despite that good news, one out of every eight humans worldwide suffers from chronic hunger, a total of 842 million people. The vast majority of those live in the developing world, with less than 16 million living in advanced nations.

The Food and Agricultural Organization of the United Nations' report, The State of Food Insecurity in the World 2013, showed the number of hungry people falling by 46 million since the last report, which covered 2010-12.

The report attributed the drop in undernourishment to economic growth, increases in agricultural productivity and remittances from migrants.

The world's hungry people are mostly in Southern Asia, sub-Saharan Africa, Eastern Asia, with the highest concentrations of undernourishment in Africa. Sub-Saharan Africa has made only "modest" progress in reducing hunger in recent years, according to the U.N., while there's been "no progress" in Western Asia. The most significant reductions in people lacking the food to conduct an active life have come mostly in Eastern and Southeastern Asia and Latin America.