Organic food

Organic vegetables at a farmers' market in Argentina

Organic foods are made in a way that limits the use of synthetic materials during production. For the vast majority of human history, agriculture can be described as organic; only during the 20th century was a large supply of new synthetic chemicals introduced to the food supply. This more recent style of production is referred to as "conventional." Under organic production, the use of conventional non-organic pesticides, insecticides and herbicides is greatly restricted and saved as a last resort. However, contrary to popular belief, certain non-organic fertilizers are still used . If livestock are involved, they must be reared without the routine use of antibiotics and without the use of growth hormones, and generally fed a healthy diet. In most countries, organic produce may not be genetically modified. It has been suggested that the application of nanotechnology to food and agriculture is a further technology that needs to be excluded from certified organic food.[1] The Soil Association (UK) has been the first organic certifier to implement a nano-exclusion.[2]

Organic food production is a heavily regulated industry, distinct from private gardening. Currently, the European Union, the United States, Canada, Japan and many other countries require producers to obtain special certification in order to market food as "organic" within their borders. Most certifications allow some chemicals and pesticides to be used , so consumers should be aware of the standards for qualifying as "organic" in their respective locales.

Historically, organic farms have been relatively small family-run operations, which is why organic food was once only available in small stores or farmers' markets. However, since the early 1990s organic food production has had growth rates of around 20% a year, far ahead of the rest of the food industry, in both developed and developing nations. As of April 2008, organic food accounts for 1–2% of food sales worldwide.

Contents

Meaning and origin of the term

In 1939, Lord Northbourne coined the term organic farming in his book Look to the Land (1940), out of his conception of "the farm as organism," to describe a holistic, ecologically-balanced approach to farming—in contrast to what he called chemical farming, which relied on "imported fertility" and "cannot be self-sufficient nor an organic whole."[3] This is different from the scientific use of the term "organic," to refer to a class of molecules that contain carbon, especially those involved in the chemistry of life.

Identifying organic food

Mixed organic bean sprouts

Processed organic food usually contains only organic ingredients. If non-organic ingredients are present, at least a certain percentage of the food's total plant and animal ingredients must be organic (95% in the United States,[4] Canada, and Australia) and any non-organically produced ingredients are subject to various agricultural requirements. Foods claiming to be organic must be free of artificial food additives, and are often processed with fewer artificial methods, materials and conditions, such as chemical ripening, food irradiation, and genetically modified ingredients. Pesticides are allowed so long as they are not synthetic.

Early consumers interested in organic food would look for non-chemically treated,non-use of unapproved pesticides, fresh or minimally processed food. They mostly had to buy directly from growers: "Know your farmer, know your food" was the motto. Personal definitions of what constituted "organic" were developed through firsthand experience: by talking to farmers, seeing farm conditions, and farming activities. Small farms grew vegetables (and raised livestock) using organic farming practices, with or without certification, and the individual consumer monitored. As demand for organic foods continued to increase, high volume sales through mass outlets such as supermarkets rapidly replaced the direct farmer connection. Today there is no limit to organic farm sizes and many large corporate farms currently have an organic division. However, for supermarket consumers, food production is not easily observable, and product labeling, like "certified organic", is relied on. Government regulations and third-party inspectors are looked to for assurance.

The USDA carries out routine inspections of farms that produce USDA Organic labeled foods.[5] Of the 30 third party inspectors 15 of them have been placed under probation after an audit. On April 20, 2010, the Department of Agriculture said that it would begin enforcing rules requiring the spot testing of organically grown foods for traces of pesticides, after an auditor exposed major gaps in federal oversight of the organic food industry.[6]

Legal definition

The National Organic Program (run by the USDA) is in charge of the legal definition of organic in the United States and does organic certification.

To be certified organic, products must be grown and manufactured in a manner that adheres to standards set by the country they are sold in:

Environmental impact

Several surveys and studies have attempted to examine and compare conventional and organic systems of farming. The general consensus across these surveys[7][8] is that organic farming is less damaging for the following reasons:

However, some critics of organic farming methods believe that organic farms require more land to produce the same amount of food as conventional farms (see 'Yield' section, below). They argue that if this is true, organic farms could potentially destroy the rain forests and wipe out many ecosystems.[9][10]

A 2003 investigation by the Department for Environment Food and Rural Affairs in the UK found, similar to other reports, that organic farming "can produce positive environmental benefits", but that some of the benefits were decreased or lost when comparisons are made on "the basis of unit production rather than area".[11]

Yield

One study found a 20% smaller yield from organic farms using 50% less fertilizer and 97% less pesticide.[12] Studies comparing yields have had mixed results.[13] Supporters claim that organically managed soil has a higher quality[14] and higher water retention. This may help increase yields for organic farms in drought years.

One study from the Danish Environmental Protection Agency found that, area-for-area, organic farms of potatoes, sugar beet and seed grass produce as little as half the output of conventional farming.[15] Findings like these, and the dependence of organic food on manure from low-yield cattle, has prompted criticism from scientists that organic farming is environmentally unsound and incapable of feeding the world population.[9] Among these critics are Norman Borlaug, father of the "green revolution," and winner of the Nobel Peace Prize, who asserts that organic farming practices can at most feed 4 billion people, after expanding cropland dramatically and destroying ecosystems in the process.[10] Michael Pollan, author of The Omnivore's Dilemma, responds to this by pointing out that the average yield of world agriculture is substantially lower than modern sustainable farming yields. Bringing average world yields up to modern organic levels could increase the worlds food supply by 50 %.[16]

A 2007 study [17] compiling research from 293 different comparisons into a single study to assess the overall efficiency of the two agricultural systems has concluded that

...organic methods could produce enough food on a global per capita basis to sustain the current human population, and potentially an even larger population, without increasing the agricultural land base. (from the abstract)

The researchers also found that while in developed countries, organic systems on average produce 92% of the yield produced by conventional agriculture, organic systems produce 80% more than conventional farms in developing countries, because the materials needed for organic farming are more accessible than synthetic farming materials to farmers in some poor countries. On the other hand, communities that lack sufficient manure to replenish soils would struggle with organic farming, and the soil would degrade rapidly.[18]

Energy efficiency

A study of the sustainability of apple production systems showed that in comparing a conventional farming system to an organic method of farming, the organic system is more energy efficient.[19] However, this is debatable due to organic farming's large use of tillage for weed control. Also increased fuel use from incorporating less nutrient dense fertilizers results in higher fuel consumption rates. The general analysis is that organic production methods are usually more energy efficient because they do not use chemically synthesized nitrogen. But they generally consume more petroleum because of the lack of other options for weed control and more intensive soil management practices.

Energy efficiency is hard to determine; in the case listed above the author cites a book written in 1976. The true value of efficiency and energy consumption in relation to organic farms has yet to be determined.

Pesticides and farmers

There are studies detailing the effects and side effects of pesticides upon the health of farm workers.[20] Even when pesticides are used correctly, they still end up in the air and bodies of farm workers. Through these studies, organophosphate pesticides have become associated with acute health problems such as abdominal pain, dizziness, headaches, nausea, vomiting, as well as skin and eye problems.[21] In addition, there have been many other studies that have found pesticide exposure is associated with more severe health problems such as respiratory problems, memory disorders, dermatologic conditions,[22][23] cancer,[24] depression, neurologic deficits,[25][26] miscarriages, and birth defects.[27] Summaries of peer-reviewed research have examined the link between pesticide exposure and neurological outcomes and cancer in organophosphate-exposed workers.[28][29] Those pesticides found to cause major health problems are banned for use in agriculture, conventional or organic, in many developed counties.

Imported fruits and vegetables from South America are more likely to contain high level of pesticides,[30] even pesticides banned for use in the United States.[31] Migratory birds, such as Swainson's hawks, have wintering grounds in Argentina where thousands of them were found dead from monocrotophos insecticide poisoning.

Pesticide residue

A study published in 2002 showed that "Organically grown foods consistently had about one-third as many residues as conventionally grown foods."[32][33]

Monitoring of pesticide residues in the United States is carried out by the Pesticide Data Program, a branch of the USDA created in 1990. It has since tested over 60 different types of food for over 400 different types of pesticides – with samples collected close to the point of consumption. Their most recent results found in 2005 that:

“ These data indicate that 29.5 percent of all samples tested contained no detectable pesticides [parent compound and metabolite(s) combined], 30 percent contained 1 pesticide, and slightly over 40 percent contained more than 1 pesticide. ”

—USDA, Pesticide Data Program[34]

Several studies corroborate this finding by having found that 25 percent of organic food carries synthetic pesticide residues, in comparison to 77 percent of conventional food.[35][36][37][38][39][40][41][42][43][44]

Safety and pesticides

A study published by the National Research Council in 1993 determined that for infants and children, the major source of exposure to pesticides is through diet.[45] A recent study in 2006 measured the levels of organophosphorus pesticide exposure in 23 schoolchildren before and after replacing their diet with organic food. In this study it was found that levels of organophosphorus pesticide exposure dropped dramatically and immediately when the children switched to an organic diet.[46] Food residue limits established by law are set specifically with children in mind and consider a child's lifetime ingestion of each pesticide.[47]

There are controversial data on the health implications of certain pesticides. For example, the herbicide Atrazine has been shown in some experiments to be a teratogen, causing demasculinization in male frogs exposed to small concentrations. Under the effects of Atrazine, male frogs were found to have greatly increased occurrences of either malformed gonads, or testicular gonads which contain non-degenerate eggs.[48] Effects were however significantly reduced in high concentrations, as is consistent with other teratogens affecting the endocrine system, such as estradiol.

Organic farming standards do not allow the use of synthetic pesticides, but they do allow the use of specific pesticides derived from plants. The most common organic pesticides, accepted for restricted use by most organic standards, include Bt, pyrethrum and rotenone. Rotenone has high toxicity to fish and aquatic creatures, causes Parkinson's disease if injected into rats, and shows other toxicity to mammals.[49]

The United States Environmental Protection Agency and state agencies periodically review the licensing of suspect pesticides, but the process of de-listing is slow. One example of this slow process is exemplified by the pesticide Dichlorvos, or DDVP, which as recently as the year 2006 the EPA proposed its continued sale. The EPA has almost banned this pesticide on several occasions since the 1970s, but it never did so despite considerable evidence that suggests DDVP is not only carcinogenic but dangerous to the human nervous system—especially in children.[50] The EPA "has determined that risks do not exceed levels of concern",[51] a study of longterm exposure to DDVP in rats showed no toxic effects.[52]

Nutritional value and taste

In April 2009, results from Quality Low Input Food (QLIF), a 5-year integrated study funded by the European Commission,[53] confirmed that "the quality of crops and livestock products from organic and conventional farming systems differs considerably."[54] Specifically, results from a QLIF project studying the effects of organic and low-input farming on crop and livestock nutritional quality "showed that organic food production methods resulted in some case: (a) higher levels of nutritionally desirable compounds (e.g., vitamins/antioxidants and poly-unsaturated fatty acids such as omega-3 and CLA); (b) lower levels of nutritionally undesirable compounds such as heavy metals, mycotoxins, pesticide residues and glyco-alkaloids in a range of crops and/or milk; (c) a lower risk of faecal Salmonella shedding in pigs." but also showed no significant difference between traditionally grown foods on other studies.[55] The QLIF study also concludes that "further and more detailed studies are required to provide proof for positive health impacts of organic diets on human and animal health."[54] Alternatively, according to the UK's Food Standards Agency, "Consumers may choose to buy organic fruit, vegetables and meat because they believe them to be more nutritious than other food. However, the balance of current scientific evidence does not support this view."[56] A 12-month systematic review commissioned by the FSA in 2009 and conducted at the London School of Hygiene & Tropical Medicine based on 50 years' worth of collected evidence concluded that "there is no good evidence that consumption of organic food is beneficial to health in relation to nutrient content."[57] Other studies have found no proof that organic food offers greater nutritional values, more consumer safety or any distinguishable difference in taste.[58][59][60][61] A recent review of nutrition claims showed that organic food proponents are unreliable information sources which harm consumers, and that consumers are wasting their money if they buy organic food believing that that it contains better nutrients.[62]

Regarding taste, a 2001 study concluded that organic apples were sweeter by blind taste test. Firmness of the apples was also rated higher than those grown conventionally.[63] Limited use of food preservatives may cause faster spoilage of organic foods. Organic food may also potentially have higher amounts of natural biotoxins, like solanine in potatoes,[64] as to compensate for the lack of externally applied fungicides and herbicides etc. However, in current studies, there have been no indications of difference in amounts of natural biotoxins between organic and conventional foods.[64]

Cost

Organic products typically cost 10 to 40% more than similar conventionally produced products.[65] According to the USDA, Americans, on average, spent $1,347 on groceries in 2004;[66] thus switching entirely to organics would raise their cost of groceries by $538.80 per year ($44.90/month) and switching to half organics would raise costs by $269.40 ($22.45/month). Processed organic foods vary in price when compared to their conventional counterparts. An Australian study by Choice magazine in 2004 found processed organic foods in supermarkets to be 65% more expensive, but noted this was not consistent. Prices may be higher because organic produce is produced on a smaller scale, and may need to be milled or processed separately. Furthermore, there is an increase in shipping costs from more centralized production in otherwise regional markets. In the case of dairy and eggs, the animal's requirements such as the number of animals that can be raised per acre, or the breed of animal and its feed conversion ratio affects the costs.

Related movements

Biodynamic agriculture, a method of organic farming, is closely related to the organic food movement.

Food Co-ops and buyers groups are alternative ways of selling food which have also been closely related to the organic food movement. These co-operative structures have been aimed at lowering the retail price of organic food and some attempt to reduce the food miles associated with the produce.

Facts and statistics

Organic Seals
EU organic farming logo.svg
European Union
USDA organic seal.svg
United States
Bio-Siegel-EG-Öko-VO-Deutschland.svg
Germany
Agriculture biologique-logo.png
France
Australian organic seal.jpg
Australia

While organic food accounts for 1–2% of total food sales worldwide, the organic food market is growing rapidly, far ahead of the rest of the food industry, in both developed and developing nations.

North America

United States:
  • Organic food is the fastest growing sector of the American food marketplace.[69]
  • Organic food sales have grown by 17 to 20 percent a year for the past few years[70] while sales of conventional food have grown at only about 2 to 3 percent a year.[71]
  • In 2003 organic products were available in nearly 20,000 natural food stores and 73% of conventional grocery stores.[72]
  • Organic products account for 2.6% of total food sales in the year 2005.[73]
  • Two thirds of organic milk and cream and half of organic cheese and yogurt are sold through conventional supermarkets.[74]
Canada:
  • Organic food sales surpassed $1 billion in 2006, accounting for 0.9% of food sales in Canada.[75]
  • Organic food sales by grocery stores were 28% higher in 2006 than in 2005.[75]
  • British Columbians account for 13% of the Canadian population, but purchased 26% of the organic food sold in Canada in 2006.[76]

Europe

In the European Union (EU25) 3.9% of the total utilized agricultural area is used for organic production. The countries with the highest proportion of organic land are Austria (11%) and Italy (8.4), followed by Czech Republic and Greece (both 7.2%). The lowest figures are shown for Malta (0.1%), Poland (0.6%) and Ireland (0.8%)[77]

Austria:
  • 11.6% of all farmers produced organically in 2007.[78] The government has created incentives to increase the figure to 20% by 2010.[79]
  • 4.9% of all food products sold in Austrian supermarkets (including discount stores) in 2006 were organic.[80] 8000 different organic products were available in the same year.[81]
Italy:
  • Since 2000 use of some organic food is compulsory in Italian schools and hospitals. Since 2005 all school lunches in Emilia Romagna must be organic by law.[82]
Poland:
  • In 2005 168,000 ha of land were under organic management. 7 percent of Polish consumers buy food that was produced according to the EU-Eco-regulation. The value of the organic market is estimated at 50 million Euros (2006).[83]
UK:
  • Organic food sales increased from just over £100 million in 1993/94 to £1.21 billion in 2004 (an 11% increase on 2003).[84]

Caribbean

Cuba:
  • After the collapse of the Soviet Union in 1990, agricultural inputs that had previously been purchased from Eastern bloc countries were no longer available in Cuba, and many Cuban farms converted to organic methods out of necessity.[85] Consequently, organic agriculture is a mainstream practice in Cuba, while it remains an alternative practice in most other countries. Although some products called organic in Cuba would not satisfy certification requirements in other countries (crops may be genetically modified, for example[86][87]), Cuba exports organic citrus and citrus juices to EU markets that meet EU organic standards. Cuba's forced conversion to organic methods may position the country to be a global supplier of organic products.[88]

See also

  • Australian Organic Farming and Gardening Society
  • China Green Food Development Center
  • Community-supported agriculture
  • Ecolabel
  • Genetically modified food
  • Kosher foods
  • Living Soil Association of Tasmania
  • Natural foods
  • Organic clothing
  • Organic farming
  • Organic Farming Digest
  • Risk Management Agency
  • Seasonal food
  • Soil Association
  • Sustainable agriculture
  • Sustainable food system
  • Sustainable living
  • The Future of Food (a documentary film about genetically modified food with a segment on organic food)
  • Whole foods
  • An Organic Conversation (a weekly radio show discussing organic food)
  • WWOOF organic farming nonprofit organization

References

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  2. ↑ Paull, J. & Lyons, K. (2008), Nanotechnology: The Next Challenge for Organics, Journal of Organic Systems, 3(1) 3–22
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  4. ↑ Labeling: Preamble
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  32. ↑ Baker, Brian; Charles M. Benbrook, Edward Groth III, and Karen Lutz Benbrook. "Pesticide residues in conventional, IPM-grown and organic foods: Insights from three U.S. data sets.". Food Additives and Contaminants 19 (5): 427–446. doi:10.1080/02652030110113799. PMID 12028642. http://www.consumersunion.org/food/organicsumm.htm. Retrieved 2007-01-28. 
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  34. ↑ Page 34 of
    Pesticide Data Program (February 2006) (pdf). Annual Summary Calendar Year 2005. USDA. http://www.ams.usda.gov/science/pdp/Summary2005.pdf. Retrieved 2006-07-24. 
  35. ↑ Consumers Union. December 15, 1997. Are organic foods as good as they’re grown? A landmark consumer reports study. Consumers Union Press Release. “One-quarter of the organic produce samples that Consumer Reports tested had some pesticide residues on them, compared with 77 percent of the conventional samples.”
  36. ↑ Consumers Union. January, 1998. Greener Greens: The Truth About Organic Food. Consumer Reports 63(1): pages 12–18.
  37. ↑ Baker et al. May, 2002. Pesticide residues in conventional, IPM-grown and organic foods: Insights from three U.S. data sets. Summary: Analysis and Results: Frequency of Positive Samples. Food Additives and Contaminants: volume 19, No. 5, pages 427–446. “Frequency of Positive Samples: Organically grown samples consistently had far smaller percentages with residues: 23, 6.5 and 27 percent in the USDA, DPR and CU data, respectively.”
  38. ↑ Environmental Science & Technology Online. January 11, 2006. Organic vegetables not pesticide-free. Science News.
  39. ↑ COMPLIANCE SUMMARY FOR FRESH FRUIT AND VEGETABLE COMMODITIES
  40. ↑ Monitoring of imported processed fruit and vegetable products by specific commodity, country and tests
  41. ↑ Fresh fruit and vegetables
  42. ↑ [http://www.inspection.gc.ca/english/fssa/microchem/resid/2003-2004/plaveg_pte.shtml Report On Pesticides, Agricultural Chemicals, Environmental Pollutants and Other Impurities in Agri-Food Commodities of Plant Origin]
  43. ↑ Dairy products
  44. ↑ Canadian Food Inspection Agency. 2003. Report on Pesticides Residues in Baby Food 2002–2003. Infant and Junior Baby Food Chemical Residues Project.
  45. ↑ National Research Council (1993). Pesticides in the Diets of Infants and Children (1st ed.). National Academies Press. ISBN 0-309-04875-3. 
  46. ↑ Lu, Chensheng, et al. (2006). "[http://www.ehponline.org/members/2005/8418/8418.pdf Organic Diets Significantly Lower Children’s Dietary Exposure to Organophosphorus Pesticides"]. Environmental Health Perspectives 114 (2): 260–263. doi:10.1289/ehp.8418. PMID 16451864. 
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  49. ↑ Pesticide Information Profiles: Rotenone. June, 1996. Pesticide Information Project of Cooperative Extension Offices of Cornell University, Oregon State University, the University of Idaho, and the University of California at Davis and the Institute for Environmental Toxicology, Michigan State University. http://extoxnet.orst.edu/pips/rotenone.htm
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  51. ↑ Reregistration Eligibility Decision for Dichlorvos(DDVP) http://www.epa.gov/oppsrrd1/reregistration/REDs/ddvp_red.pdf
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  60. ↑ Canadian Produce Marketing Association (CPMA). Organically Grown Produce: Does organic produce taste better? & Is organic produce more nutritious?
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Further reading

On Organics
On Conventional vs Organic Farming
  • Guthman, Julie (2004). Agrarian Dreams: The Paradox of Organic Farming in California. University of California Press. ISBN 0-520-24095-2. 
  • Hamilton, Denis; Crossley, Stephen (editors) (2004). Pesticide residues in food and drinking water. J. Wiley. ISBN 0-471-48991-3. 
  • Hond, Frank et al. (2003). Pesticides: problems, improvements, alternatives. Blackwell Science. ISBN 0-632-05659-2. 
  • Watson, David H. (editor) (2004). Pesticide, veterinary and other residues in food. Woodhead Publishing. ISBN 1-85573-734-5. 
  • Wargo, John (1998). Our Children's Toxic Legacy: How Science and Law Fail to Protect Us from Pesticides. Yale University Press. ISBN 0-300-07446-8. 
  • Williams, Christine (2002). "Nutritional quality of organic food: shades of grey or shades of green?". Proceedings of the Nutrition Society. pp. 19–24. 
Pesticides and food

External links