Analysis of vitamin B∧12 in the Korean representative foods and dietary intake assessment for Koreans

• Published in: Food science and biotechnology Vol. 17; no. 2
• Main Authors: Choi, Y.J. (Korea Food and Drug Administration, The Bureau of Risk Management, Seoul, Republic of Korea), Kim, J.Y. (Ottogi Research Center, Anyang, Republic of Korea), Lee, H.S. (Korea Health Industry Development Institute, Seoul, Republic of Korea), Kim, C.I. (Korea Health Industry Development Institute, Seoul, Republic of Korea), Hwang, I.K. (Seoul National University, Seoul, Republic of Korea), Park, H.K. (Korea Food and Drug Administration, Nutrition and Functional Food Headquaters, Seoul, Republic of Korea), Kim, T.H. (Kyungpook National University, Daegu, Republic of Korea), Oh, C.H. (Semyung University, Jecheon, Republic of Korea), E-mail: och35@semyung.ac.kr
• Format: Journal Article
• Language: English
• Published: 01.04.2008
• Subjects: BANQUE DE DONNEES; BASES DE DATOS; dietary intake assessment; dietary reference intake for Korean
• ISSN: 1226-7708; 2092-6456

This study was conducted to provide a vitamin B∧12 database for the representative Korean food items and to assess the dietary intake assessment of vitamin B∧12 for Koreans. The vitamin B∧12 content of 106 foods had been determined by high performance liquid chromatography (HPLC) using column switching method. Rich sources of vitamin B∧12 were meats, milk, and egg (0.3-3.4 ㎍/100 g). Vegetables and fruits contained vitamin B∧12 below limit of detection (LOD). The major food sources for vitamin B∧12 intake were milk (72.0%), meats (22.3%), egg (3.6%), and fishes and shellfishes (2.1%). Mean vitamin B-12 intake of Koreans was 3.16 ㎍/person/day. The proportion of population with intake below estimate average requirement (EAR) and above recommended intake (RI) of vitamin B∧12 was 60.7 and 36.5%, respectively. The vitamin B∧12 intake level of young children with 1-2 years which was 834.6% of RI while the intake level of the older adults 50 years and older was only 70.0% of RI. Also, there were regional differences between urban and rural area. The population with intake below RI was larger than that with intake above RI in Korea.