GUIDE TO NUTRITIONAL SUPPLEMENTS This page intentionally left blank GUIDE TO NUTRITIONAL SUPPLEMENTS Editor BENJAMIN CABALLERO Elsevier Ltd., The Boulevard, Langford Lane, Kidlington, Oxford, OX5 1GB, UK ª 2009 Elsevier Ltd. The following articles are US Government works in the public domain and not subject to copyright: CAROTENOIDS/Chemistry, Sources and Physiology VEGETARIAN DIETS All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic, or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publishers. Permissions may be sought directly from Elsevier’s Rights Department in Oxford, UK: phone (+44) 1865 843830, fax (+44) 1865 853333, e-mail
[email protected]. Requests may also be completed on-line via the homepage (http://www.elsevier.com/locate/permissions). Material in this work originally appeared in the Encyclopedia of Human Nutrition, Second Edition, edited by Benjamin Caballero, Lindsay Allen and Andrew Prentice (Elsevier, Ltd 2005). Library of Congress Control Number: 2009929980 A catalogue record for this book is available from the British Library ISBN 978-0-12-375109-6 This book is printed on acid-free paper Printed and bound in the EU EDITORIAL ADVISORY BOARD Christopher Bates Janet C King MRC Human Nutrition Research Children’s Hospital Oakland Research Institute Cambridge, UK Oakland, CA, USA Carolyn D Berdanier Anura Kurpad University of Georgia St John’s National Academy