Archive for the ‘Health’ Category

Mar04

Innovation of the Month: Food Fermentation for Biopreservation

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By Brandon Pierce

Although the word “bacteria” is usually associated with sickness and disease, it is the driving force behind fermentation, a food process on which humans have relied for millennia. Some of the earliest recorded instances of fermentation come from East Asia where, according to William Shurtleff, founder of the SoyInfo Center, the process was used as early as 300 BCE to ferment soybeans.

Fermentation has been used for millennia to preserve and improve the nutritional content of foods. (Photo credit: the DIY Gourmet)

Fermentation historically has had two purposes. Foods undergoing the fermentation process went through remarkable changes in taste, basically allowing for the creation of new foods. Fermentation also served as a way to prevent foods from spoiling. It is referred to as a biopreservation method, or a way to preserve foods using beneficial microorganisms.

In biopreservation, beneficial bacteria are used to prevent food spoilage and get rid of harmful pathogens. Lactic acid bacteria (LAB) are probably the most commonly used due to their unique properties and because they are harmless to humans. As LABs compete for nutrients with other bacteria, they release antimicrobials that stop spoilage and inhibit the growth of potentially harmful pathogens.

In functioning as an effective biopreservative, bacteria do not necessarily have to also start the process of fermentation. Generally, bacteria are selected either for their metabolic properties, which cause fermentation, or for their antimicrobial activity, which is important for food preservation. LAB can be used for both.

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Feb01

Innovation of the Month: Gardens for Health

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By Carly Chaapel

Around the world, gardens provide food for local communities, serve as educational tools, and empower the poor. In sub-Saharan Africa, where 22.5 million people live with the human immunodeficiency virus (HIV), humanitarian and environmental organizations are turning to community gardens for nutritional and social benefits for HIV patients.

Rwandan farmer harvests plants for her family with the help of Gardens for Health. (Photo credit: Gardens for Health International)

In Rwanda, the most densely populated sub-Saharan country, the average citizen lives well below global average health, education, and income standards. The Human Development Index ranks Rwanda 166 out of 187 countries, indicating “low human development.” According to the U.S. Agency for International Development (USAID), nearly 170,000 people (3 percent of adults) suffer from HIV in Rwanda.

Numerous organizations are, however, generating hope for the poor and the sick in Rwanda. Gardens for Health International, for example, partners with local health clinics to provide agricultural solutions for health problems, including malnutrition. Patients who arrive at rural clinics in need of food aid and emergency treatment often leave with the resources necessary to both address their immediate needs and sustain themselves and their families in the future. Gardens for Health experts routinely visit families in their homes, bringing the tools and knowledge needed (e.g., seedlings and market access knowledge) to increase yields, diversify diets, and prevent future malnutrition.

In Swaziland, the International Red Cross has donated money to support community gardens with similar goals. According to USAID, 25.9 percent of adults in Swaziland live with HIV, and nearly 70,000 children have been orphaned due to the virus. Although food crises are prevalent in this drought-prone country, donations from the Red Cross have enabled communities to both develop food gardens and access valuable adaptation technology, such as drip irrigation, which can increase agricultural productivity and boost year-round food security for families living with HIV.

By disseminating resources and information, organizations such as Gardens for Health and the International Red Cross can increase access to healthy foods for the poor, hungry, and sick, and enable families to develop productive and sustainable food gardens just outside their front doors.

Do you know about a garden that is used as a healing space for the sick? Tell us more in the comments below.

Carly Chaapel is a former research intern with the Worldwatch Institute’s Food and Agriculture Program.

Jan30

Sea Buckthorn: A Shrub That’s Good for People and the Environment

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By Carol Dreibelbis

Sea buckthorn, also known as Siberian pineapple, sea berry, sandthorn, or swallowthorn, is a deciduous shrub that grows natively across northern Eurasia. As its name suggests, sea buckthorn’s branches are dense, stiff, and thorny, but its berries can provide nutrition for both people and wildlife.

Sea buckthorn berries offer benefits to both human and environmental health. (Photo credit: www.seabuckthornberries.info)

Sea buckthorn is valued in parts of Europe and Asia for its nutritional and medicinal properties. Its bright orange berries are high in carotenoids, flavonoids, and vitamins A, C, E, and K; in fact, the concentration of vitamin C in sea buckthorn is higher than in strawberries, kiwis, oranges, tomatoes, and carrots. The berries have a fruity yet sour flavor and are often used in juices, jams, sauces, and liqueurs. The silver-gray leaves yield a tea rich in antioxidants, and the plants are even high in essential fatty acids.

While sea buckthorn is currently used medicinally in Russia and China, it has only recently attracted the attention of researchers across the world. Sea buckthorn oil, which can be extracted from seeds, is said to be anti-inflammatory, antimicrobial, and adaptogenic (helping the body develop resistance to stressors). It is used as a treatment for mucositis, ulcers, radiation damage, burns, and scalds, as well as to relieve pain and promote tissue regeneration. While clinical studies are still needed to fully understand its medicinal benefits, a study by Hamdard University in India shows that sea buckthorn may help protect against diabetes.

Beyond its human health benefits, sea buckthorn also boosts the health of the environment in which it grows. Because its extensive root system can bind together even sandy soils, sea buckthorn prevents water and wind erosion on slopes and in open areas. It is fairly drought and frost resistant, tolerates soil salinity and low temperatures, and can withstand a range of soil pH levels. Sea buckthorn also adds nitrogen to the soil through nitrogen fixation, so it can grow in marginal soils and help restore them.

Sea buckthorn provides food and shelter for a variety of animals. In the Loess Plateau of northern China, 51 species of birds are entirely dependent on the shrub for food.

Despite the relative ease of cultivation, sea buckthorn is difficult to harvest, and machines to efficiently collect the fresh berries are still being developed. Harvesting berries by hand is time consuming (some estimate 600 person-hours per acre, compared to the 120 person-hours per acre required for tomatoes). Until harvesting machines become readily available, large-scale cultivation of sea buckthorn may not be viable.

Given the many potential benefits offered by sea buckthorn, groups such as the European Commission’s EAN-Seabuck network have prioritized the development of economical and sustainable production methods for this plant. In the meantime, sea buckthorn retains its ability to improve environmental and human health on a smaller scale.

Have you ever tried sea buckthorn berries or a product made with them? Let us know in the comments section below.

Carol Dreibelbis is a former research intern with the Worldwatch Institute’s Food and Agriculture Program.

Jan15

Certified Organic Farmland Still Lagging Worldwide

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By Laura Reynolds 

Despite the growing worldwide demand for organic food, clothing, and other products, the area of land certified as organic still makes up just 0.9 percent of global agricultural land. In 2010, the latest year for which data are available, 37 million hectares of land were organically farmed—an area that has grown more than threefold since 1999.

Certified organic farmland still represents just .9 percent of all agricultural land. (Photo credit: Andrew Hyde)

There is large regional variation in the area of land farmed organically. Oceania, which includes Australia, New Zealand, and Pacific Island nations, leads the world in certified organic land, with 12.1 million hectares in 2010. In contrast, North America had 2.6 million hectares of organic land, and Africa had just over 1 million hectares.

Reliable data are lacking for land that is farmed using organic principles but that is not certified organic. Many farmers, particularly subsistence farmers or those selling to local markets, farm organically but do not acquire organic certification. Certified organic products have created a niche market in recent decades, allowing farmers to earn premium prices over conventional products, particularly when selling to supermarkets or restaurants.

The countries with the most certified organic producers in 2010 were India (400,551 farmers), Uganda (188,625), and Mexico (128,826), while the region that added the most organic farmland between 2009 and 2010 was Europe. Overall, the amount of organically farmed land worldwide dropped slightly, by 0.1 percent, between 2009 and 2010—due largely to a decrease in organic land in India and China.

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Jan08

Reforming Energy Subsidies Could Curb India’s Water Stress

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By Alyssa Casey

Water scarcity is a global problem, as demonstrated by the recent droughts across the U.S. Midwest and the Horn of Africa. And it is projected to become increasingly widespread in the coming years: the 2030 Water Resources Group estimates that by 2030, one-third of the world’s population will live in regions where demand for water exceeds supply by more than 50 percent.

Energy subsidies in India perpetuate inefficient water use in agriculture. (Photo Credit: Kolli Nageswara Rao)

The rapidly growing and urbanizing global population will need more natural resources, especially water, to feed and sustain itself in the coming years. The effects of climate change will only exacerbate water scarcity. A rise in sea levels will increase the salinity of already-limited freshwater resources. Changing weather patterns will further polarize rainfall levels around the world: according to climate experts, many wet regions will see more rain and increasing flood risk, while many dry regions will experience less rainfall, increasing the frequency of drought.

India’s water woes

Although water scarcity is a global concern, some countries, such as India, are more affected than others. Home to 1.2 billion people, India struggles to feed 17 percent of the world’s population with just 4 percent of the world’s freshwater resources. More than 85 percent of India’s villages and over half of its cities rely on groundwater for agriculture, domestic use, and industry, but overuse has resulted in sinking water tables. Despite relative scarcity, India is the largest freshwater user in the world.

Water levels of India’s dams are falling to record lows. According to an analysis by NASA hydrologists, India’s water tables are declining at a rate of 0.3 meters per year, and between 2002 and 2008 more than 108.37 cubic kilometers of groundwater disappeared—double the capacity of India’s largest surface water reservoir. Decreasing levels of dams and rivers could lead to political conflict within the country, as well as conflict with neighboring countries, such as Bangladesh and Pakistan.

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Dec11

Colorado Water Struggles Highlight Impact of Fracking on Farming

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By Carol Dreibelbis

Fracking—known more formally as hydraulic fracturing—produces roughly 25 percent of the U.S. natural gas supply. This increasingly common practice uses pressurized fluid to release trapped oil or natural gas from a well, and has been praised for lowering energy prices. But concerns about fracking’s impacts on human health and the environment have caused many to question its expansion. And now, according to a recent article by Jack Healy of the New York Times, the debate has become even more contentious in the state of Colorado.

Fracking in the United States generates an estimated 8.1 trillion gallons of wastewater daily. (Photo credit: zhuda/Shutterstock)

Fracking requires pumping enormous quantities of water underground to crack dense rock and release stored energy. To meet this demand—up to 5 million gallons per well—energy companies in Colorado have been tapping into municipal water supplies. As Healy explains, “To fill their storage tanks, [the companies] lease surplus water from cities or buy treated wastewater that would otherwise be dumped back into rivers. In some cases, they buy water rights directly from farmers or other users—a process that in Colorado requires court approval.”

In light of last summer’s drought and the long history of water struggle in the West, many Colorado farmers worry that energy companies will outcompete them for precious water supplies. Local farmers pay between $30 and $100 per acre foot of water; recently, oil and gas companies have paid up to $2,000 for the same quantities of water. Fracking currently accounts for less than 1 percent of Colorado’s water usage, but the Colorado Oil and Gas Conservation Commission estimates that the state will require 16 percent more water for fracking within three years.

Colorado farmers are not alone in questioning the impact of fracking on agriculture. According to Wenonah Hauter, Executive Director of the consumer rights group Food & Water Watch, fracking in the United States generates an estimated 8.1 trillion gallons of wastewater daily. One study by Ithaca College identifies a long list of toxic chemicals that are present in this wastewater, including arsenic and heavy metals.

These chemicals can contaminate local pasturelands and croplands, harming livestock, stunting crop growth, and reducing livestock and crop fertility. In Pennsylvania, 28 cattle were quarantined in 2010 after coming in contact with fracking wastewater that had leaked from a nearby holding pond. In addition to affecting livestock, the wastewater killed grass in the surrounding area. In this case, cattle were quarantined to prevent people from eating chemical-laced beef. In other instances, such as at the Park Slope Food Cooperative in New York, consumers are taking action themselves by refusing to eat food produced near fracking wells.

Evidence of fracking’s damaging impact on food production is accumulating across the country, and concern is growing as the practice expands around the planet. In a world where both energy production and food production are priorities, fracking remains a widely disputed issue.

Can fracking coexist with a safe and sustainable food supply? Please let us know your thoughts in the comments section below.

Carol Dreibelbis is a research intern with the Nourishing the Planet project.

Dec06

“We Plant a Seed, We Grow Our Future:” Larry Laverentz on Refugee Farmers in the United States

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In November 2012, Nourishing the Planet’s Victoria Russo spoke with Larry Laverentz, a program manager with the Refugee Agricultural Partnership Program (RAPP), about his efforts to educate and support refugee farmers in the United States.

Larry has been involved in agriculture for most of his life, from growing up on a cattle farm to working as an agriculture volunteer in Vietnam for International Voluntary Services. His experiences, including earning a bachelor’s degree in Agricultural Economics from Kansas State University and a master’s degree in Public Administration from the University of Pittsburgh, have enabled him to run programs for the U.S. Agency for International Development and prepared him for his current position at RAPP.

RAPP helps refugee farmers bring familiar and nutritious foods home to their families. (Photo credit: RAPP)

How was the Refugee Agricultural Partnership Program created?

In 2003, the director of the U.S. government’s Office of Refugee Resettlement began to track the trend of agrarian backgrounds of refugees, and decided to create a project that would enable refugees to get in touch with their agrarian roots. The project officially started in San Diego and Phoenix, and soon spread into a national program through support from the Institute for Social and Economic Development. The program is currently in its third round of three-year grants, totaling 24 projects nationwide.

What sorts of challenges do refugees face when they come to the United States and try to make a living through agriculture?

Many refugees come to this country wanting to get involved with agriculture. While they may be well-versed in farming practices, marketing their products and making a livelihood from farming in this country are complicated processes. Those who have lived in refugee camps for many years typically have limited education and few English and literacy skills, making it difficult to communicate. This creates barriers, for example, in finding land to rent or getting loans for farm equipment. If refugees have no credit history or practice balancing a budget or repaying loans, they are susceptible to falling into debt. Most refugee farmers must also find an off-farm income to supplement what they make through agriculture.

What strategies does RAPP use to break down these barriers and help refugees?

RAPP aims to educate and assist refugees in areas where they did not have previous experience. Each project uses grant funding to hire a garden coordinator, recruit volunteers, access land and supplies, and assess projects. In the first year, the team will typically build an incubator training farm, focused on intensive production tied to marketing. Perhaps after the first year the project will grow, and refugees will be able to expand or even start their own small farms. In conjunction with the farms, we teach classes on record-keeping and financial literacy, invite guests such as master gardeners to come speak, or coordinate ESL courses structured toward agricultural vocabulary. We try to give them the tools they need to grow their businesses.

Are most of the program participants experienced farmers, or are they new to agriculture?

Most of them are experienced in agriculture but were subsistence farmers in their countries of origin. This means that if they farmed, they were not typically involved in marketing, and they are not used to selling excess crops. Refugee camps do not usually allow farming due to limited space, and technology has advanced from what they knew before—so even if they are experienced farmers, there is still a learning curve. The question that we are trying to answer is “How do you create independence for refugees?” Dr. Hugh Joseph of Tufts University created the nation’s first refugee farming project in 1998, which focused on teaching them how to transition from being gardeners, to market gardeners, to independent farmers. We hope that our program allows them to eventually take their own produce to market, operate their own stand, and know what to plant each season.

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Nov22

This Thanksgiving, Celebrate Traditional Food Production

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Nourishing the Planet wishes you a happy Thanksgiving!

Check out this op-ed published in Arizona’s Sierra Vista Herald by Nourishing the Planet Director Danielle Nierenberg and research intern Hong Gao. The article discusses the importance of supporting traditional Indigenous food production and culture, on Thanksgiving and throughout the year.

Click here to read the full article.

Oct21

Students Protest New, Healthier School Lunches

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By Carol Dreibelbis

Thanks to the Healthy, Hunger-Free Kids Act of 2010, schools across the United States are serving healthier school lunches this academic year. School lunches must meet new nutritional guidelines—such as including fruits and vegetables and limiting fats and sodium—for schools to receive extra federal lunch aid. Calories counts are also restricted: high school, middle school, and elementary school lunches must now be no more than 850, 700, and 650 calories, respectively. Although nutrition and health advocates celebrate this change, a recent article in The New York Times indicates that many students feel differently.

Food waste has increased due to healthier school lunches this year (Photo credit: Librado Romero/The New York Times)

Students in districts around the country have responded to the healthier lunches with boycotts and strikes. According to Shawn McNulty, principal at Mukwonago High School in Wisconsin, participation in the school lunch program had fallen 70 percent as a result of student action. “There is a reduction in nacho chips, there is a reduction in garlic bread, but there’s actually an increase in fruits and vegetables,” Mr. McNulty said. “That’s a tough sell for kids, and I would be grumbling, too, if I was 17 years old.” Students are also throwing away more food in New York City and elsewhere.

Food service directors are using a variety of strategies to encourage students to eat fruits and vegetables, including asking teachers to discuss healthy food in class, giving out free samples, and educating students about where their food comes from and how it is produced. But, schools may simply need to wait for students to grow accustomed to new menu options: according to William J. McCarthy, professor of public health and psychology at the University of California, Los Angeles, children must be exposed to vegetables 10 to 12 times before they eat them on their own. “If our task is to get young kids to eat more fruits and vegetables, we have to be willing to put up with the waste,” he said.

How would you suggest that we teach kids to eat and value healthy foods? Tell us in the comments below!  

Carol Dreibelbis is a research intern with the Nourishing the Planet project.

To purchase State of the World 2011: Innovations that Nourish the Planet please click HERE.

Oct16

On World Food Day, Supporting Agricultural Cooperatives in the Fight against Hunger and Poverty

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By Danielle Nierenberg and Laura Reynolds

Some one billion people belong to cooperatives in nearly 100 countries worldwide guarding consumers, producers, and workers against hunger, bankruptcy, and rights abuses. Agricultural cooperatives help farmers access and share information, get fair prices for their goods, and participate in local decision making. This October 16, the UN Food and Agriculture Organization (FAO) will celebrate “Agricultural Cooperatives: Key to Feeding the World” for World Food Day.

World Food Day is a global day of action against hunger (Photo Credit: Oxfam America)

Agricultural cooperatives are part of a larger movement to make food more environmentally and socially just and sustainable. Agroecological practices enrich soils, improve yields, increase incomes, and support the people, animals, plants, and entire ecosystems affected by agriculture.

An infographic released recently by the Christensen Fund highlights how industrial agricultural practices—including raising meat in factory farms, adding pesticides and chemical fertilizers to fields, and shipping food to markets across the globe—contributes to increased incidences of chronic diseases and severe air and water pollution.

By contrast, agroecological practices—including composting and agroforestry, conserving wildlife habitats, and selling products within a localized food system—can build resilience to climate change, increase nutritional and biological diversity, and double or triple agricultural yields over the long term.

Agricultural cooperatives and agroecological practices go hand-in-hand to support a more sustainable food system. By encouraging worker empowerment, farmer training, and consumer awareness, this year’s World Food Day theme is showcasing one of the most promising elements of a more sustainable food system.

World Food Day is a global day of action against hunger. FAO suggests a variety of ways you can become involved in the day of action, including:

  1. Host a World Food Day meal: As part of its GROW Method, OxfamAmerica promotes 5 very simple actions to help create a better food system: save food, eat seasonally and locally, eat less meat and dairy, support small farmers, and cook smart. If you sign up to host a meal, OxfamAmerica will send you everything you need to host a great event: free World Food Day recipe cards from famous chefs, placemats, videos, and more.
  2. Join your local hunger coalition: The Alliance to End Hunger has created the Hunger Free Communities Network, an online platform for coalitions, campaigns, and individuals committed to ending hunger in their local communities.
  3. Activate a school campus: Why Care? is a student-led campaign of Universities Fighting World Hunger to spark a global conversation about hunger and to build momentum to World Food Day campus events. The campaign offers several simple suggestions on how to spread the word about world hunger on a campus.
  4. Arrange a food and fund drive: the World Food Day website can help you find your nearby food bank or pantry, and gives tips on donating food or funds to maximize your positive impact.

To purchase State of the World 2011: Innovations that Nourish the Planet please click HERE.