( CNN ) -- Afghanistan and several African nations are the most at risk to have a food shortage , an organization that works with the United Nations said in a report Thursday . Afghanistan was named as the country with the most vulnerable food supply , according to the study by Maplecroft , a British-based research agency . After Afghanistan , African nations were on the rest of the top 10 list . In order , the next were the Democratic Republic of Congo , Burundi , Eritrea , Sudan , Ethiopia , Angola , Liberia , Chad and Zimbabwe . In all , African nations were 36 of the top 50 on the list . `` Sub-Saharan Africa is particularly vulnerable to food insecurity because of the frequency of extreme weather events , high rates of poverty and failing infrastructures , '' the organization said . Maplecroft said it worked with the U.N. 's World Food Programme to develop the criteria to judge 163 countries . The group came up with 12 categories to help make evaluations . Those categories included the nutritional and health status of populations , cereal production and imports , Gross Domestic Product per capita , natural disasters , conflict and the effectiveness of government , the group said . The United States was ranked No . 158 . Finland got the best rank and was considered least at risk .
Group works with the United Nations . 36 African nations rank in the top 50 in peril , group says . Finland gets the best rank , considered least at risk .