This paper investigates height and weight differences between the two Koreas by comparing national anthropometric data published by the South Korean Research Institute of Standard and Science with United Nations survey data collected inside North Korea in 2002. For socioeconomic reasons, pre-school children raised in the developing country of North Korea are up to 13 cm shorter and up to 7 kg lighter than children who were brought up in South Korea – an OECD member. North Korean women were also found to weigh up to 9 kg less than their Southern counterparts.