DRIDIETARY REFERENCE INTAKES Thiamin, Riboflavin, Niacin, Vitamin
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Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline http://www.nap.edu/catalog/6015.html DIETARY REFERENCE INTAKES DRI FOR Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline A Report of the Standing Committee on the Scientific Evaluation of Dietary Reference Intakes and its Panel on Folate, Other B Vitamins, and Choline and Subcommittee on Upper Reference Levels of Nutrients Food and Nutrition Board Institute of Medicine NATIONAL ACADEMY PRESS Washington, D.C. Copyright © National Academy of Sciences. All rights reserved. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline http://www.nap.edu/catalog/6015.html NATIONAL ACADEMY PRESS • 2101 Constitution Avenue, N.W. • Washington, DC 20418 NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance. This project was funded by the U.S. Department of Health and Human Services Office of Disease Prevention and Health Promotion, Contract No. 282-96-0033, T01; the National Institutes of Health Office of Nutrition Supplements, Contract No. N01-OD-4-2139, T024, the Centers for Disease Control and Prevention, National Center for Chronic Disease Preven- tion and Health Promotion, Division of Nutrition and Physical Activity; Health Canada; the Institute of Medicine; and the Dietary Reference Intakes Corporate Donors’ Fund. Contribu- tors to the Fund include Roche Vitamins Inc, Mead Johnson Nutrition Group, Daiichi Fine Chemicals, Inc, Kemin Foods, Inc, M&M Mars, Weider Nutrition Group, and Natural Source Vitamin E Association. The opinions or conclusions expressed herein do not necessarily reflect those of the funders. Library of Congress Cataloging-in-Publication Data Dietary reference intakes for thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, pantothenic acid, biotin, and choline / a report of the Standing Committee on the Scientific Evaluation of Dietary Reference Intakes and its Panel on Folate, Other B Vitamins, and Choline and Subcommittee on Upper Reference Levels of Nutrients, Food and Nutrition Board, Institute of Medicine. p. cm. Includes bibliographical references and index. ISBN 0-309-06554-2 (pbk.) -- ISBN 0-309-06411-2 (case) 1. Vitamin B in human nutrition. 2. Reference values (Medicine) I. Institute of Medicine (U.S.). Standing Committee on the Scientific Evaluation of Dietary Reference Intakes. II. Institute of Medicine (U.S.). Panel on Folate, Other B Vitamins, and Choline. III. Institute of Medicine (U.S.). Subcommittee on Upper Reference Levels of Nutrients. QP772.V52 D53 2000 612.3′99--dc21 00-028380 Additional copies of this report are available from National Academy Press, 2101 Constitution Avenue, N.W., Lock Box 285, Washington, DC 20055. Call (800) 624-6242 or (202) 334-3313 (in the Washington metropolitan area), or visit the NAP’s on-line bookstore at http:/ www.nap.edu. For more information about the Institute of Medicine or the Food and Nutrition Board, visit the IOM home page at http://www.nas.edu/iom. Copyright 1998 by the National Academy of Sciences. All rights reserved. Printed in the United States of America The serpent has been a symbol of long life, healing, and knowledge among almost all cul- tures and religions since the beginning of recorded history. The image adopted as a logotype by the Institute of Medicine is based on a relief carving from ancient Greece, now held by the Staatliche Museen in Berlin. Copyright © National Academy of Sciences. All rights reserved. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline http://www.nap.edu/catalog/6015.html “Knowing is not enough; we must apply. Willing is not enough; we must do.” —Goethe INSTITUTE OF MEDICINE Shaping the Future for Health Copyright © National Academy of Sciences. All rights reserved. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline http://www.nap.edu/catalog/6015.html National Academy of Sciences National Academy of Engineering Institute of Medicine National Research Council The National Academy of Sciences is a private, nonprofit, self-perpetuating society of distinguished scholars engaged in scientific and engineering research, dedicat- ed to the furtherance of science and technology and to their use for the general welfare. Upon the authority of the charter granted to it by the Congress in 1863, the Academy has a mandate that requires it to advise the federal government on scientific and technical matters. Dr. Bruce M. Alberts is president of the National Academy of Sciences. The National Academy of Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding engineers. It is autonomous in its administration and in the selection of its mem- bers, sharing with the National Academy of Sciences the responsibility for advising the federal government. The National Academy of Engineering also sponsors engineering programs aimed at meeting national needs, encourages education and research, and recognizes the superior achievements of engineers. Dr. William A. Wulf is president of the National Academy of Engineering. The Institute of Medicine was established in 1970 by the National Academy of Sciences to secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public. The Institute acts under the responsibility given to the National Academy of Sciences by its congressional charter to be an adviser to the federal government and, upon its own initiative, to identify issues of medical care, research, and education. Dr. Kenneth I. Shine is president of the Institute of Medicine. The National Research Council was organized by the National Academy of Sciences in 1916 to associate the broad community of science and technology with the Academy’s purposes of furthering knowledge and advising the federal government. Functioning in accordance with general policies determined by the Academy, the Council has become the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering in providing services to the government, the public, and the scientific and engineering communities. The Council is administered jointly by both Academies and the Institute of Medicine. Dr. Bruce M. Alberts and Dr. William A. Wulf are chairman and vice chairman, respectively, of the National Research Council. Copyright © National Academy of Sciences. All rights reserved. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline http://www.nap.edu/catalog/6015.html PANEL ON FOLATE, OTHER B VITAMINS, AND CHOLINE ROY M. PITKIN (Chair), Department of Obstetrics and Gynecology, University of California, Los Angeles (Professor Emeritus) and Obstetrics & Gynecology (Editor), Los Angeles LINDSAY H. ALLEN, Department of Nutrition, University of California, Davis LYNN B. BAILEY, Food Science and Human Nutrition Department, University of Florida, Gainesville MERTON BERNFIELD, Department of Pediatrics, Harvard Medical School, Boston PHILLIPE De WALS, Department of Community Health Sciences, University of Sherbrooke, Quebec RALPH GREEN, Department of Pathology, University of California at Davis Medical Center, Sacramento DONALD B. McCORMICK, Department of Biochemistry, Emory University School of Medicine, Atlanta ROBERT M. RUSSELL, Department of Medicine and Nutrition at the Jean Mayer U.S. Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston BARRY SHANE, Department of Nutritional Sciences, University of California, Berkeley STEVEN H. ZEISEL, Department of Nutrition, University of North Carolina School of Public Health and School of Medicine, Chapel Hill IRWIN H. ROSENBERG, Clinical Nutrition Division, the Jean Mayer U.S. Department of Agriculture Human Nutrition Research Center on Aging, Tufts University and New England Medical Center, Boston, Liaison to the Panel from the Subcommittee on Upper Reference Levels of Nutrients Staff CAROL W. SUITOR, Study Director ELISABETH A. REESE, Research Associate ALICE L. KULIK, Research Assistant MICHELE RAMSEY, Project Assistant v Copyright © National Academy of Sciences. All rights reserved. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline http://www.nap.edu/catalog/6015.html SUBCOMMITTEE ON UPPER REFERENCE LEVELS OF NUTRIENTS IAN C. MUNRO (Chair), CanTox, Inc., Mississauga, Ontario WALTER MERTZ, Retired, U.S. Department of Agriculture Human Nutrition Research Center, Rockville, Maryland RITA B. MESSING, Division of Environmental Health, Minnesota Department of Health, St. Paul SANFORD A. MILLER, Graduate School of Biomedical Sciences, University of Texas Health Sciences Center, San Antonio SUZANNE P. MURPHY, Department of Nutritional Sciences, University of California, Berkeley JOSEPH V. RODRICKS,