The lead authors of the article, Dr. Jere Haas from the Division of Nutritional Sciences at Cornell University, Dr. John Beard and Dr. Laura E. Murray-Kolb from the Department of Nutritional Sciences at Pennsylvania State University, Prof. Angelita del Mundo and Prof. Angelina Felix from the University of the Philippines Los Baños, and Dr. Glenn Gregorio from the International Rice Research Institute (IRRI), oversaw a study in which religious sisters in ten convents in the Philippines included the nutritionally enhanced rice in their diets. After 9 months, the women had significantly higher levels of total body iron in their blood.
"This study documents a major breakthrough in the battle to prevent micronutrient malnutrition," said Dr. Robert Zeigler, director general of IRRI. "These results are especially important for rice-eating regions of the world where more than 3 billion of the world's poor and undernourished live."
The iron-dense variety of rice used in the research (known technically as IR68144-3B-2-2-3) was developed and grown at IRRI and then tested by an international team of researchers from Cornell University, Pennsylvania State University, the University of the Philippines Los Baños and IRRI. The research initiative was originally spearheaded and funded by the Washington-based International Food Policy Research Institute (IFPRI), with support from the Asian Development Bank and the Micronutrient Initiative. HarvestPlus, an international, interdisciplinary research program focused on breeding crops for better nutrition and led by IFPRI and the International Center for Tropical Agriculture (CIAT), will continue to work with these research findings and partners to increase the level of nutrient density in rice to be even more effective.
"We view this study as a 'proof of concept,'" said Zeigler. "We now know that, if plants are bred with higher levels of iron and other micronutrients, they will improve the nutritional status of people who consume them. This has dramatic implications."
Through a process known as "biofortification," plant breeders are developing staple foods with higher levels of essential micronutrients. This study demonstrates that iron-biofortified rice can raise levels of stored iron in the body and can significantly contribute to reducing micronutrient malnutrition.
"In the past, we relied on supplements and fortification to overcome vitamin and mineral deficiencies," said Howarth Bouis, director of HarvestPlus. "Now we know that biofortification also works, giving us an additional tool in this crucial battle."
The United Nations and other donors spend millions of dollars a year on iron supplements and other strategies to ease the enormous damage wreaked by iron deficiency and related conditions. Iron deficiency can affect a child's physical and mental development, and each year causes more than 60,000 maternal deaths during pregnancy and childbirth. Recent statistics from the Micronutrients Initiative of Canada and the United Nations Children's Fund indicate that more than half of the developing world's children between 6 months and 2 years of age are iron-deficient during the critical period of their growth when brain development occurs. Many of the worst affected are found among Asia's poorest, but iron deficiency is also widespread in Africa, affecting more than 80 percent of young children in some countries.
Nutritional experts correctly advise that the best solution is a balanced diet of fruit, vegetables and meat, but, for the very poor, such choices are simply not possible and so they depend predominantly on staple foods to stave off day-to-day hunger. This is especially true in isolated rural areas where under-resourced and overstretched public health systems struggle to improve the overall nutrition of the world's poor through nutritional supplements. In these areas, commercially fortified foods also have difficulty making it into the mouths of the hungry and so malnutrition persists.
"The fact that biofortified foods can have an impact on nutritional status in humans is an enormously exciting breakthrough," Zeigler noted. "It is time to shift the agricultural research agenda, and the rice research agenda in particular, away from quantity and toward better-quality food. This may be the start of a nutritional revolution--a very appropriate follow-on from the Green Revolution and one that is desperately needed by millions of the world's poor and undernourished."
The International Rice Research Institute (IRRI) is the world's leading rice research and training center. Based in the Philippines and with offices in 10 other Asian countries, it is an autonomous, nonprofit institution focused on improving the well-being of present and future generations of rice farmers and consumers, particularly those with low incomes, while preserving natural resources. IRRI is one of 15 centers funded through the Consultative Group on International Agricultural Research (CGIAR), an association of public and private donor agencies. Please visit the Web sites of the CGIAR (www.cgiar.org) or Future Harvest Foundation (www.futureharvest.org), a nonprofit organization that builds awareness and supports food and environmental research.
For information, contact Duncan Macintosh, IRRI, DAPO Box 7777, Metro Manila, Philippines; tel +63-2-580-5600; fax: +63-2-580-5699; email d.macintosh@cgiar.org or Johnny Goloyugo at j.goloyugo@cgiar.org Web sites: IRRI Home (www.irri.org), IRRI Library (http://ricelib.irri.cgiar.org), Rice Knowledge Bank (www.knowledgebank.irri.org)
Study Contributors
For the past decade, a global alliance of research centers, academic institutions and development agencies in both developed and developing countries have committed their time, resources and knowledge to achieving a critical goal–improving the nutritional status of the world's poor through biofortified rice.
The following organizations and individuals contributed significantly to this study:
The University of the Philippines Los Baños
Role: Conducted biofortified-rice feeding trials with 192 religious sisters in 10 convents in the Philippines over a 9-month period.
Angelita del Mundo served as professor of human nutrition and foods in the College of Human Ecology at the University of the Philippines Los Baños until her retirement in 2002. She led the field research team that conducted the feeding trials at the convent, supervised a team of enumerators to ensure the highest levels of scientific rigor and was a co-author of the study. She passed away in November 2004.
Cornell University
Role: Co-principal investigator
Jere Hass is the Nancy Schlegel Meinig Professor of Maternal and Child Nutrition in the Division of Nutritional Sciences at Cornell University, with expertise in the effect of iron deficiency on physical and reproductive performance. He served as a principal investigator and lead author of the study.
HarvestPlus
Role: Coordinated work of all contributing organizations and individuals on the study. HarvestPlus is led by the Washington-based International Food Policy Research Institute (IFPRI) and the Colombia-based International Center for Tropical Agriculture (CIAT).
Howarth Bouis is director of HarvestPlus, an international, interdisciplinary research program that seeks to reduce micronutrient malnutrition by harnessing the powers of agriculture and nutrition research to breed nutrient-dense staple foods. As a senior research fellow at IFPRI, he was part of the first biofortified-rice research effort that led to this study. Bouis has successfully galvanized a global network of research centers and implementing agencies in support of biofortification as a new food-based approach for ending hunger and undernutrition in developing countries.
The International Rice Research Institute
Role: Developed and field-tested biofortified rice in the Philippines.
Glenn Gregorio is a scientist and plant breeder at the International Rice Research Institute. His research was instrumental in the identification and field testing of the high-iron rice variety–technically known as IR68144–used in the study. Glenn is a co-author of the study.
Pennsylvania State University
Role: Co-principal investigator
John Beard is a professor of nutrition in the Department of Nutritional Sciences at Pennsylvania State University, with expertise in iron deficiency and early child development. He served as a principal investigator and co-author of the study.
FACT SHEETS
This information contains the following:
1. Rice
2. Iron Deficiency in Developing Countries
3. Key Highlights from "Iron-Biofortified Rice Improves the Iron Stores of Non-Anemic Filipino Women," Journal of Nutrition, 2005
1. Rice
2. Iron Deficiency in Developing Countries
3. Key Highlights from "Iron-Biofortified Rice Improves the Iron Stores of Non-Anemic Filipino Women," Journal of Nutrition, 2005
Journal
Journal of Nutrition