Tag: hidden hunger

A sustainable solution to micronutrient deficiency

Written by Sarah McLaughlin on January 3, 2023. Posted in Publications.

Zinc deficiency affects one third of the global population; vitamin A deficiency is a prevalent public health issue in many parts of sub-Saharan Africa and South Asia. This includes countries like Nepal, where alarming rates of micronutrient deficiency contribute to a host of health problems across different age groups, such as stunting, weakened immune systems, and increased maternal and child mortality.

In the absence of affordable options for dietary diversification, food fortification, or nutrient supplementation, crop biofortification remains one of the most sustainable solutions to reducing micronutrient deficiency in the developing world.

After a 2016 national micronutrient status survey highlighted the prevalence of zinc and vitamin A deficiency among rural communities in Nepal’s mountainous western provinces, a team of researchers from the Nepal Agricultural Research Council and the International Maize and Wheat Improvement Center (CIMMYT) proposed a study to assess the yield performance of zinc and provitamin A enriched maize varieties.

Focusing on the river basin area of Karnali Province — where maize is the staple food crop for most people – they conducted two different field trials using an alpha lattice design to identify zinc and provitamin A biofortified maize genotypes consistent and competitive in performance over the contrasting seasons of February to July and August to February.

The study, recently published in Plants, compared the performance of newly introduced maize genotypes with local varieties, focusing on overall agro-morphology, yield, and micronutrient content. In addition to recording higher levels of kernel zinc and total carotenoid, it found that several of the provitamin A and zinc biofortified genotypes exhibited greater yield consistency across different environments compared to the widely grown normal maize varieties.

The results suggest that these genotypes could be effective tools in combatting micronutrient deficiency in the area, thus reducing hidden hunger, as well as enhancing feed nutrient value for the poultry sector, where micronutrient rich maize is highly desired.

“One in three children under the age of five in Nepal and half of the children in the study area are undernourished. Introduction and dissemination of biofortified maize seeds and varieties will help to mitigate the intricate web of food and nutritional insecurity, especially among women and children,” said AbduRahman Beshir, CIMMYT’s seed systems specialist for Asia and the co-author of the publication. Strengthening such products development initiatives and enhancing quality seed delivery pathways will foster sustainable production and value chains of biofortified crops, added Beshir.

Read the study: Zinc and Provitamin A Biofortified Maize Genotypes Exhibited Potent to Reduce Hidden-Hunger in Nepal

Cover photo: Farm worker Bharat Saud gathers maize as it comes out of a shelling machine powered by 4WT in Rambasti, Kanchanpur, Nepal. (Photo: Peter Lowe/CIMMYT)

Fruits, vegetables and bread. Photo: Ella Olsson (CC BY 2.0)

Fruits and vegetables are essential, but there are three reasons why it takes cereals to feed the world

Written by Rodrigo Ordóñez on January 17, 2022. Posted in Blogs.

Like many development research and funding organizations, the Australian Centre for International Agricultural Research (ACIAR) is emphasizing a renewed commitment to a nutrition-sensitive approach to agricultural development projects.

As part of the International Year of Fruits and Vegetables, a recent blog proposed that one central issue of improved nutrition is consumption of more fruit and vegetables. We agree that a diverse diet including fruits and vegetables should be accessible to every person. Here we highlight the presence of a wider picture.

In the past decade, awareness has grown about the importance of diets that are rich in vitamins and minerals, and the need to combat micronutrient malnutrition which can lead to irreversible health outcomes impacting entire economies and perpetuating a tragic cycle of poverty and economic stagnation.

Lack of vitamins and minerals, often called “hidden hunger,” is not confined to lower-income food-insecure countries. In richer countries we clearly see a transition towards energy-rich, micronutrient-poor diets. In fact, populations throughout the world are eating more processed foods for reasons of convenience and price. To hit our global hunger and health targets we need to invest in nutrition-sensitive agricultural research and production as well as promoting affordable diets with varied and appealing nutrient-rich foods.

Alongside hunger, we have a pandemic of diet-related diseases that is partly caused by the over-consumption of energy-rich junk diets. This is because modern food formulations are often shaped towards addictive and unhealthy products. We see this in rising levels of obesity and diabetes, some cancers, heart diseases and chronic lung conditions.

Investing in agri-food research and improving nutrition will be much cheaper than treating these diet-related non-communicable diseases. Besides being healthier, many people will be much happier and able to live more productive lives.

Yet, the picture is bigger than micronutrient malnutrition. Even if new investments in research enable us to increase the production and delivery of fruits, vegetables and other nutrient-rich foods such as legumes and nuts, we will not have cracked the whole problem of food security, nutrition and health.

Besides “hidden hunger,” many hundreds of millions of people worldwide are hungry because they still lack the basic availability of food to live and work.

Women cook chapatis in Sani, Zanskar valley, India. Photo: SandeepaChetan's Travels (CC BY-NC-ND 2.0) — Women cook chapatis in Sani, Zanskar valley, India. Photo: SandeepaChetan’s Travels (CC BY-NC-ND 2.0)

Enter cereals. Wheat, maize and rice have been the major sources of dietary energy in the form of carbohydrates in virtually all societies and for thousands of years: recent research in the Middle East suggests that the original “paleo” diet was not just the result of hunting and gathering, but included cereals in bread and beer!

There are three reasons why cereals are essential to feeding the world:

First, nutritionists and medics tell us that cereals not only provide macronutrients — carbohydrates, proteins and fats — and micronutrients — vitamins and minerals. We now know that cereals are important sources of bioactive food components that are not usually classed as nutrients, but are essential to health all the same. These are compounds like carotenoids, flavonoids, phytosterols, glucosinolates and polyphenols, which are found naturally in various plant foods and have beneficial antioxidant, anticarcinogenic, anti-inflammatory and antimicrobial properties, likely to be important in mitigating and/or combating disease.
Second, whole-grain foods, especially wheat, are also a major source of dietary fibre, which is essential for efficient digestion and metabolism. Fibre from cereals also nourishes the human gut flora whose products such as short-chain fatty acids have many health benefits including combatting some cancers. Eating such carbohydrates also helps us recognise that we have eaten sufficiently, so that we know when “enough is enough.”
Third, cereal foods are relatively cheap to produce and to buy, and also easy to transport and preserve. Hence, supplies are relatively stable, and good nutrition from cereals is likely to remain accessible to less affluent people.

But all is not well with cereals these days. Cereals are under siege from climate change-related heat and drought, and new and more virulent forms of plant diseases, which threaten our agriculture and natural resources. There remains much research to undertake in this era of rapidly changing climatic conditions, and of economic and political stresses.

Here are a few strategies for agri-food research and its supporters:

We can further increase the nutritional content of cereal foods through biofortification during plant breeding.
We can produce disease- and heat-resilient varieties of grains that are efficient in the use of water and fertilizer, and whose production is not labor-intensive.
By working with communities, we can adapt new production technologies to local conditions, especially where women are the farmers.
We can enhance the quality of cereal foods through nutrient fortification during milling, and by better processing methods and food formulation.
Experts in all agri-food disciplines can work together to inform and “nudge” consumers to make healthy food purchasing decisions.

Cereals matter, but in an age of misinformation, we still have to be cautious: Some people are susceptible to certain components of cereals such as gluten. People who are medically diagnosed with cereal intolerances must shape their diets accordingly and get their carbohydrates and bioactive food components from other sources.

So, we cannot live on bread alone: We should aim for diets which are rich in diverse foods.

Such diets include fruits and vegetables that must be accessible to people in different regions, particularly to the most vulnerable, and that provide different macronutrients, micronutrients and essential bioactive components. For most of us, the health-promoting content of cereals means that they must remain a major part of the global diet.

Nigel Poole is Emeritus Professor of International Development at SOAS University of London and Consultant at the International Maize and Wheat Improvement Center (CIMMYT).

Rajiv Sharma is Senior Scientist at the International Maize and Wheat Improvement Center (CIMMYT).

Alison Bentley is the Director of the Global Wheat Program at the International Maize and Wheat Improvement Center (CIMMYT).

Unlike white maize varieties, vitamin A maize is rich in beta-carotene, giving it a distinctive orange color. This biofortified variety provides consumers with up to 40% of their daily vitamin A needs. (Photo: HarvestPlus/Joslin Isaacson)

Partners in nutrition

Written by Steven M on September 28, 2020. Posted in Features.

It is no secret that Africa is urbanizing at breakneck speed. Consider Lagos. In 1950 the Nigerian city boasted a population of a few hundred thousand. Today that number has soared to around 14 million. It is estimated that by 2025 half of Africa’s population will live in urban areas.

This demographic transformation has had dramatic consequences for human health and nutrition. Urban dwellers are far more likely to rely on cheap highly-processed foods, which are shelf-stable but poor on nutrients.

These statistics, presented by moderator Betty Kibaara, Director of the Food Initiative at The Rockefeller Foundation, framed the 2020 African Green Revolution Forum’s policy symposium on “Advancing Gender and Nutrition.” The forum comprised two tracks. One focused on addressing the needs of nutritionally vulnerable urban consumers, particularly women; the other on gender-based financing in the African agri-food system

Speaking in the first track, Natalia Palacios, maize quality specialist at the International Maize and Wheat Improvement Center (CIMMYT), underlined the enormity of the challenge. “We need to provide affordable, nutritious diets … within planetary boundaries,” she said.

Many of the panelists pointed out further dimensions of the challenge — from evidence deficits around the continent’s urban populations to the amplifying effects of the COVID-19 crisis. Palacios stressed that the bedrock of any response must be effective partnerships between governments, companies and non-profit actors working in this area.

“The really important thing is to start working together,” she said, “to start developing the strategies together instead of providing things or demanding things.” Speaking to the role of organizations like CIMMYT, Palacios highlighted the need to work closely with the private sector to understand the demand for agricultural raw materials that can be converted into nutritious diets.

Rich nutrition within reach

Palacios’ most recent research efforts focus on precisely this question. She and a team of researchers, including CIMMYT senior scientist Santiago Lopez-Ridaura, explored how various innovations in maize production have improved the macro- and micro-nutrient content of the grain and led to healthier maize-based agri-food systems.

This is significant because for millions of the estimated 2 billion people globally who suffer from “hidden hunger” a more diversified diet rich in costly, perishable, nutrient-dense foods is not economically feasible. In low- and middle-income countries across Africa, Asia and Latin America, it estimated that rice, maize and wheat account for 55 to 70% of calories.

CIMMYT, HarvestPlus and the International Institute of Tropical Agriculture (IITA), together with several stakeholders, have been deeply involved in work to improve the nutritional quality of staple-dependent food systems. In partnership with a broad network of national and private-sector partners, they have released over 60 improved maize and wheat varieties fortified with zinc or provitamin A in 19 countries.

Cover photo: Unlike white maize varieties, vitamin A maize is rich in beta-carotene, giving it a distinctive orange color. This biofortified variety provides consumers with up to 40% of their daily vitamin A needs. (Photo: HarvestPlus/Joslin Isaacson)

Breaking Ground: Velu Govindan is mainstreaming zinc to combat hidden hunger

Written by Emma Orchardson on October 30, 2019. Posted in Features.

Velu Govindan will always remember his father telling him not to waste his food. “He used to say that rice and wheat are very expensive commodities, which most people could only afford to eat once a week during his youth,” recalls the wheat breeder, who works at the International Maize and Wheat Improvement Center (CIMMYT).

As in many parts of the world, the Green Revolution had a radical impact on agricultural production and diets in southern India, where Govindan’s father grew up, and by the late 1960s all farmers in the area had heard of “the scientist” from the USA. “Borlaug’s influence in India is so great because those new high-yielding varieties fed millions of people — including me.”

But feeding millions was only half the battle.

Today, at least two billion people around the world currently suffer from micronutrient deficiency, characterized by iron-deficiency anemia, lack of vitamin A and zinc deficiency.

Govindan works in collaboration with HarvestPlus to improve nutritional quality in cereals in addition to core traits like yield potential, disease resistance and climate tolerance. His area of focus is South Asia, where wheat is an important staple and many smallholder farmers don’t have access to a diversified diet including fruit, vegetables or animal products which are high in micronutrients like iron and zinc.

“It’s important that people not only have access to food, but also have a healthy diet,” says Govindan. “The idea is to improve major staples like rice, maize and wheat so that people who consume these biofortified varieties get extra benefits, satisfying their daily dietary needs as well as combatting hidden hunger.”

The challenge, he explains, is that breeding for nutritional quality is often done at the expense of yield. But varieties need high yield potential to be successful on the market because farmers in developing countries will not get a premium price simply for having a high micronutrient content in their grain.

Fast evolving wheat diseases are another issue to contend with. “If you release a disease-resistant variety today, in as little as three or four years’ time it will already be susceptible because rust strains keep mutating. It’s a continuous battle, but that’s plant breeding.”

Velu Govindan speaks at International Wheat Conference in 2015. (Photo: Julie Mollins/CIMMYT)

Mainstreaming zinc

When it comes to improvement, breeding is only the first part of the process, Govindan explains. “We can do a good job here in the lab, but if our varieties are not being taken up by farmers it’s no use.”

Govindan and his team work in collaboration with a number of public and private sector organizations to promote new varieties, partnering with national agricultural research systems and advanced research institutes to reach farmers in India, Nepal and Pakistan. As a result, additional high-zinc varieties have been successfully marketed and distributed across South Asia, as well as new biofortified lines which are currently being tested in sub-Saharan Africa for potential release and cultivation by farmers.

Their efforts paid off with the development and release of more than half dozen competitive high-zinc varieties including Zinc-Shakthi, whose grain holds 40% more zinc than conventional varieties and yields well, has good resistance to rust diseases, and matures a week earlier than other popular varieties, allowing farmers to increase their cropping intensity. To date, these biofortified high-zinc wheat varieties have reached nearly a million households in target regions of South Asia and are expected to spread more widely in coming years.

The next step will be to support the mainstreaming of zinc, so that it becomes an integral part of breeding programs as opposed to an optional addition. “Hopefully in ten years’ time, most of the wheat we eat will have those extra benefits.”

There may be a long way to go, but Govindan remains optimistic about the task ahead.

Velu Govindan examines wheat in the field.

Born into a farming family, he has fond memories of a childhood spent helping his father in the fields, with afternoons and school holidays dedicated to growing rice, cotton and a number of other crops on the family plot.

The region has undergone significant changes since then, and farmers now contend with both rising temperatures and unpredictable rainfall. It was a motivation to help poor farmers adapt to climate change and improve food production that led Govindan into plant breeding.

He has spent nearly ten years working on CIMMYT’s Spring Wheat Program and still feels honored to be part of a program with such a significant legacy. “Norman Borlaug, Sanjay Rajaram and my supervisor Ravi Singh — these people are legendary,” he explains. “So luckily we’re not starting from scratch. These people made life easy, and we just need to keep moving towards achieving continuous genetic gains for improved food and nutrition security.”

Cobs & Spikes podcast: Striving for higher quality, more nutritious maize

Written by Rodrigo Ordóñez on April 5, 2019. Posted in Podcasts.

While increasing yields will be necessary to feed the 9.8 billion people expected by 2050, Natalia Palacios — head of the maize nutritional quality laboratory at CIMMYT — says that’s only part of the challenge. She argues we must also strive for higher-quality, more nutritious crops. According to the United Nations Food and Agriculture Organization, over 800 million people are considered undernourished. That’s about one out of every nine people in the world. Find out how Palacios’ research helps CIMMYT and its partners close the gap and support better health and nutrition.

For more information on Palacios’ research linking provitamin A orange maize and reduced aflatoxin contamination, read the publication here.

Rómulo González’s daughter holds a corncob. (Photo: Sarah Caroline Mueller)

Fighting hidden hunger with agricultural innovation

Written by Mary Donovan on April 5, 2019. Posted in Features.

Maize provides 15-16 percent of total calorie intake in Asia, Latin America and sub-Saharan Africa, while wheat provides 18 percent of our total available calories. Hidden hunger occurs when these calories don’t provide the essential micronutrients, such as iron, zinc and vitamin A, needed for healthy growth and prevention of diseases.

On World Health Day, we are sharing five stories showing how the International Maize and Wheat Improvement Center (CIMMYT) is combating hidden hunger and how agricultural research and innovation leads to healthier families, improved livelihoods and a healthier planet.

Climate change impact and adaptation for wheat protein

Often, work on climate change adaptation in agriculture focuses on productivity instead of nutrition of crops. If nutritional implications of climate change are not addressed, there will be devastating consequences on the health and livelihoods of marginalized people who depend on wheat as a source of protein.

A new study examines why wheat grain protein concentration is often overlooked in relation to improving global crop production in the face of climate change challenges and concludes that not all climate change adaptations have positive impacts on human nutrition.

An improved wheat variety grows in the field in Islamabad, Pakistan. (Photo: A. Yaqub/CIMMYT)

Nutritious vitamin A orange maize boosts health and livelihoods in Zimbabwe

In Zimbabwe, child malnutrition peaked above international thresholds for emergency response. Vitamin A deficiency is the leading cause of preventable blindness in children and can increase risk of measles, diarrhea and respiratory infections. However, biofortification of maize is a sustainable solution to improve health and nutrition in the region.

CIMMYT and Harvest Plus worked together to breed maize with higher amounts of nutritious vitamin A and are working with farmers, seed companies, food processors and millers to make this maize part of the food system in Zimbabwe.

Orange maize conventionally bred to contain high amounts of vitamin A is fighting child malnutrition in Zimbabwe. (Photo: Matthew O'Leary/ CIMMYT) — Orange maize conventionally bred to contain high amounts of vitamin A is fighting child malnutrition in Zimbabwe. (Photo: Matthew O’Leary/ CIMMYT)

Pakistan wheat seed makeover: More productive, resilient varieties for thousands of farmers

In Pakistan, CIMMYT is working to develop and spread better wheat production systems, by replacing outdated, disease susceptible seeds with new varieties. These new varieties also come with a health benefit — zinc.

According to a 2011 nutrition survey, 39 percent of children in Pakistan and 48 percent of pregnant women suffer from zinc deficiency, leading to child stunting rates of more than 40 percent and high infant mortality. These new seeds will increase the nutrition content of wheat, Pakistan’s number-one food crop, as well as resist diseases such as wheat rust.

The road to better food security and nutrition seems straighter for farmer Munsif Ullah and his family, with seed of a high-yielding, zinc-enhanced wheat variety. (Photo: Ansaar Ahmad/CIMMYT)

El camino hacia una mejor seguridad alimentaria y nutrición parece esclarecerse para el agricultor Munsif Ullah y su familia, con semillas de una variedad de trigo de alto rendimiento con zinc. (Foto: Ansaar Ahmad/CIMMYT)

Munfiat, a farmer from Nowshera district, Khyber Pakhtunkhwa province, Pakistan, is happy to sow and share seed of the high-yielding, disease resistant Faisalabad-08 wheat variety. (Photo: Ansaar Ahmad/CIMMYT)

Munfiat, un agricultor del distrito de Nowshera, provincia de Khyber Pakhtunkhwa, Pakistán, está feliz de sembrar y compartir semillas de la variedad de trigo de alto rendimiento y resistente a las enfermedades Faisalabad-08. (Foto: Ansaar Ahmad/CIMMYT)

Better together: Partnership around zinc maize improves nutrition in Guatemala

Over 46 percent of children under five in Guatemala suffer from chronic malnutrition. More than 40 percent of the country’s rural population is deficient in zinc, an essential micronutrient that plays a crucial role in pre-natal and post-natal development and is key to maintaining a healthy immune system.

CIMMYT, HarvestPlus and Semilla Nueva are working together to change this, through the development and deployment of the world’s first biofortified zinc-enriched maize. Called Fortaleza 3 by Semilla Nueva, it fights against hidden hunger, containing 6-12ppm more zinc and 2.5 times more quality protein compared to conventional maize varieties.

“With the extra income I’ve gotten since switching to F3, I’ve been paying for my daughter to go to school. Fortaleza F3 not only gave me a good harvest, but also the ability to support my daughter’s education,” said Rómulo González, a farmer from the southern coast of Guatemala.

Farmers key to realizing EAT-Lancet report recommendations in Mexico, CIMMYT highlights

The EAT-Lancet Commission Report aims to answer the question: can we feed a future population of 10 billion people a healthy diet within planetary boundaries? It proposes a “planetary health diet” that balances nutrition with sustainable food production.

CIMMYT participated in the report launch in Mexico. “If anybody is able to manage the complex systems that will sustainably yield the volume of nutritious food that the world needs, that’s the farmer,” said Bram Govaerts, Director of Innovative Business Strategies at CIMMYT. “In Mexico, more than 500 thousand farmers already innovate every day and grow maize, wheat and related crops under sustainable intensification practices that CIMMYT and Mexico’s Agriculture Department promote with MasAgro”.

These innovations he mentioned create healthier families and a healthier planet.

CIMMYT's director of innovative business strategies, Bram Govaerts (left), explained that three changes are needed to reduce the environmental impact of food systems in Mexico: innovation in production practices, reduction of food waste, and change of diets. (Photo: CIMMYT) — CIMMYT’s director of innovative business strategies, Bram Govaerts (left), explained that three changes are needed to reduce the environmental impact of food systems in Mexico: innovation in production practices, reduction of food waste, and change of diets. (Photo: CIMMYT)

Global maize experts discuss biofortification for nutrition and health

Written by Jennifer Johnson on April 5, 2018. Posted in News.

Over two billion people across the world suffer from hidden hunger, the consumption of a sufficient number of calories, but still lacking essential nutrients such as vitamin A, iron or zinc. This can cause severe damage to health, blindness, or even death.

At the 4^th annual Latin American Cereals Conference (LACC) in Mexico City from 11 to 14 March, presenters discussed global malnutrition and how biofortification of staple crops can be used to improve nutrition for farming families and consumers.

Wolfgang Pfeiffer of HarvestPlus presents on malnutrition and stunting. Photo: Jennifer Johnson/CIMMYT.

“A stunted child will never live up to its full potential,” said Wolfgang Pfeiffer, director of research and development at HarvestPlus, as he showed a slide comparing the brain of a healthy infant versus a stunted one.

Hidden hunger and stunting, or impaired development, are typically associated with poverty and diets high in staple crops such as rice or maize. Biofortification of essential nutrients into these staple crops has the potential to reduce malnutrition and micronutrient deficiencies around the world.

“Maize is a staple crop for over 900 million poor consumers, including 120-140 million poor families. Around 73% of farmland dedicated to maize production worldwide is located in the developing world,” said B.M. Prasanna, director of the CGIAR Research Program on Maize (MAIZE) at LACC.

The important role of maize in global diets and the rich genetic diversity of the crop has allowed for important breakthroughs in biofortifcation. The International Maize and Wheat Improvement Center (CIMMYT) has over 40 years of experience in maize breeding for biofortification, beginning with quality protein maize (QPM), which has enhanced levels of lysine and tryptophan, essential amino acids, which can help reduce malnutrition in children.

B.M. Prasanna discusses the history of maize biofortification at the LACC conference. Photo: Mike Listman/CIMMYT.

“Over 50 QPM varieties have been adopted in Latin America and the Caribbean and sub-Saharan Africa, and three new QPM hybrids were released in India in 2017 using marker assisted breeding,” said Prasanna.

In more recent years, CIMMYT has worked with MAIZE and HarvestPlus to develop provitamin A maize to reduce vitamin A deficiency, the leading cause of preventable blindness in children, affecting 5.2 million preschool-age children globally, according to the World Health Organization. This partnership launched their first zinc-enriched maize varieties in Honduras in 2017 and Colombia in 2018, with releases of new varieties planned in Guatemala and Nicaragua later this year. Zinc deficiency can lead to impaired growth and development, respiratory infections, diarrheal disease and a general weakening of the immune system.

“There is a huge deficiency of vitamin A, iron and zinc around the world,” said Natalia Palacios, maize nutritional quality specialist at CIMMYT. “The beauty of maize is its huge genetic diversity that has allowed us to develop these biofortified varieties using conventional breeding methods. The best way to take advantage of maize nutritional benefits is through biofortification, processing and functional food,” she said.

Natalia Palacios discusses the development of biofortified varieties such as provitamin A and zinc-enriched maize. Photo: Mike Listman/CIMMYT.

The effects of these varieties are already beginning to show. Recent studies have shown that vitamin A maize improves vitamin A status and night vision of 4-8 year old rural children in Zambia.

“Biofortified crops are in testing in over 60 countries, 7.5 million households are growing biofortified crops, and over 35 million household members are consuming them,” said Pfeiffer. “It is critical to involve farmers in the development of biofortified crop varieties before they are released, through participatory variety selection.”

Overall, the conference presenters agreed that ending hidden hunger will require cooperation and partnerships from multiple sectors and disciplines. “Partnerships with seed companies are crucial for biofortified maize to make an impact. This is not just about technological advances and developing new products, this is about enabling policies, stimulating demand, and increasing awareness about the benefits of these varieties,” said Prasanna.