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The United Nations University Press

Food and Nutrition Bulletin

Volume 17, Number 3, September 1996

Table of Contents

Published by the United Nations University, Tokyo, Japan.

Editorial address:

Food and Nutrition Bulletin
Charles Street Sta., P.O. Box 500
Boston, MA 02114-0500, USA
Tel: (617) 227-8747
Fax: (617) 2279405 Subscription address:

United Nations University Press

The United Nations University
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Tokyo 150, Japan
Tel.: (03) 3499-2811. Fax: (03) 3406-7345.
Telex: J25442. Cable: UNATUNIV TOKYO.

The Food and Nutrition Bulletin incorporates and continues the PAG Bulletin of the former Protein-Calorie Advisory Group of the United Nations system and is published quarterly by the United Nations University Press in collaboration with the United Nations ACC Subcommittee on Nutrition.

All correspondence concerning the content of the Bulletin, comments, news, and notices should be sent to the editor at the Boston editorial office address given above.

All material in the Bulletin may be reproduced freely provided acknowledgement is given and a copy of the publication containing the reproduction is sent to the editorial office.

The United Nations University (UNU) is an organ of the United Nations established by the General Assembly in 1972 to be an international community of scholars engaged in research, advanced training, and the dissemination of knowledge related to the pressing global problems of human survival, development, and welfare. Its activities focus mainly on peace and conflict resolution, development in a changing world, and science and technology in relation to human welfare. The University operates through a worldwide network of research and postgraduate training centres, with its planning and coordinating headquarters in Tokyo.

The United Nations University Press, the publishing division of the UNU, publishes scholarly books and periodicals in the social sciences, humanities, and pure and applied natural sciences related to the University's research.

Editor: Dr. Nevin S. Scrimshaw

Assistant Editor: Ms. Edwina B. Murray

Editorial Consultant: Ms. Sarah Jeffries

Senior Associate Editor - Clinical and Human Nutrition: Dr. Cutberto Garza, Director and Professor, Division of Nutritional Sciences, Cornell University, Ithaca, N.Y., USA

Senior Associate Editor - Food Science and Technology: Dr. Ricardo Bressani, Instituto de Investigaciones, Universidad del Valle de Guatemala, Guatemala City, Guatemala

Associate Editors:

© The United Nations University, 1996
ISSN 0379-5721


Editorial policy

Protein and amino acid requirements

Human protein requirements: A brief update

Human amino acid requirements: A re-evaluation

World essential amino acid supply with special attention to South-East Asia

Nutrition and behaviour

Rapid assessment procedures for the health and nutritional profile of adolescent girls: An exploratory study

Mothers' knowledge, understanding, and use of the bubble chart in a rural area of central Mexico

Effects of breakfast on classroom behaviour in rural Jamaican schoolchildren

Public health nutrition

Salt iodine variation within an extended Guatemalan community: The failure of intuitive assumptions

Can Africa meet the goal of eliminating iodine-deficiency disorders by the year 2000?

Vitamin A deficiency and the prevalence of xerophthalmia in southern Rwanda

Food science

Chemical composition and nutritive value of some wild-gathered tropical plant seeds

Books received

News and notes

Note for contributors/Note ŕ l'intention des auteurs/Nota para los posibles autores

Title of interest - Food Habits in Later Life: A Cross Cultural Study

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