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The United Nations released a ground breaking report in November 2006 linking animal agriculture to environmental damage. The report, titled "Livestock’s Long Shadow–Environmental Issues and Options,"<ref>{{cite web |url=http://www.virtualcentre.org/en/library/key_pub/longshad/A0701E00.htm |title=Livestock’s Long Shadow–Environmental Issues and Options|accessdate=2007-01-04}}</ref> concludes that the livestock sector (primarily cows, chickens, and pigs) emerges as one of the top two or three most significant contributors to our most serious environmental problems, at every scale from local to global. It is one of the largest sources of greenhouse gases - responsible for 18% of the world’s greenhouse gas emissions as measured in CO<sub>2</sub> equivalents. By comparison, all transportation emits 13.5% of the CO<sub>2</sub>. It produces 65% of human-related nitrous oxide (which has 296 times the global warming potential of CO<sub>2</sub>) and 37% of all human-induced methane (which is 23 times as warming as CO<sub>2</sub>). The United Nations released a ground breaking report in November 2006 linking animal agriculture to environmental damage. The report, titled "Livestock’s Long Shadow–Environmental Issues and Options,"<ref>{{cite web |url=http://www.virtualcentre.org/en/library/key_pub/longshad/A0701E00.htm |title=Livestock’s Long Shadow–Environmental Issues and Options|accessdate=2007-01-04}}</ref> concludes that the livestock sector (primarily cows, chickens, and pigs) emerges as one of the top two or three most significant contributors to our most serious environmental problems, at every scale from local to global. It is one of the largest sources of greenhouse gases - responsible for 18% of the world’s greenhouse gas emissions as measured in CO<sub>2</sub> equivalents. By comparison, all transportation emits 13.5% of the CO<sub>2</sub>. It produces 65% of human-related nitrous oxide (which has 296 times the global warming potential of CO<sub>2</sub>) and 37% of all human-induced methane (which is 23 times as warming as CO<sub>2</sub>).


Steven Davis, professor of ] at ], argues that the number of wild animals killed in crop production is greater than those killed in ]-pasture production. Whenever a tractor goes through a field to plow, disc, cultivate, apply fertilizer and/or pesticide, and harvest, animals are killed. <ref>Davis, S.L. (2001). "The least harm principle suggests that humans should eat beef, lamb, dairy, not a vegan diet." EurSafe 2001. Food Safety, Food Quality and Food Ethics. ''Proceedings of the Third Congress of the European Society for Agricultural and Food Ethics''. pp 449-450.</ref> Davis gives a small sampling of field animals in the U. S. that are threatened by intensive crop production, such as: ], ], ], ], ], ], ], ], ], ], ], ], ], and numerous species of ]. In one small example, an alfalfa harvest caused a 50% decline in the gray-tailed vole population. According to Davis, if all of the cropland in the U. S. were used to produce crops for a vegan diet, it is estimated that around 1.8 billion animals would be killed annually. <ref>Davis S.L. (2003) "The least harm principle may require that humans consume a diet containing large herbivores, not a vegan diet". ''Journal of Agricultural and Environmental Ethics''. (16)4. pp. 387-394. </ref> (TOO BAD 90 billion are killed annually right now!) Steven Davis, professor of ] at ], argues that the number of wild animals killed in crop production is greater than those killed in ]-pasture production. Whenever a tractor goes through a field to plow, disc, cultivate, apply fertilizer and/or pesticide, and harvest, animals are killed. <ref>Davis, S.L. (2001). "The least harm principle suggests that humans should eat beef, lamb, dairy, not a vegan diet." EurSafe 2001. Food Safety, Food Quality and Food Ethics. ''Proceedings of the Third Congress of the European Society for Agricultural and Food Ethics''. pp 449-450.</ref> Davis gives a small sampling of field animals in the U. S. that are threatened by intensive crop production, such as: ], ], ], ], ], ], ], ], ], ], ], ], ], and numerous species of ]. In one small example, an alfalfa harvest caused a 50% decline in the gray-tailed vole population. According to Davis, if all of the cropland in the U. S. were used to produce crops for a vegan diet, it is estimated that around 1.8 billion animals would be killed annually. <ref>Davis S.L. (2003) "The least harm principle may require that humans consume a diet containing large herbivores, not a vegan diet". ''Journal of Agricultural and Environmental Ethics''. (16)4. pp. 387-394. </ref>


Gaverick Matheny, a Ph.D. candidate in agricultural economics at the University of Maryland, claims that Davis' reasoning contains several major flaws, including distorting the notion of "harm" to animals, and miscalculating the number of animal deaths based upon areas of land rather than per consumer. Matheny claims that vegetarianism actually kills less animals, promotes better treatment of animals, and allows more animals to exist. <ref name="Matheny">{{cite journal|url=http://www.veganoutreach.org/enewsletter/matheny.html|title=Least harm: a defense of vegetarianism from Steven Davis’s omnivorous proposal|author=Gaverick Matheny|journal=Journal of Agricultural and Environmental Ethics|volume=16|pages=505-511|year=2003|id={{doi|10.1023/A:1026354906892}}}}</ref> Gaverick Matheny, a Ph.D. candidate in agricultural economics at the University of Maryland, claims that Davis' reasoning contains several major flaws, including distorting the notion of "harm" to animals, and miscalculating the number of animal deaths based upon areas of land rather than per consumer. Matheny claims that vegetarianism actually kills less animals, promotes better treatment of animals, and allows more animals to exist. <ref name="Matheny">{{cite journal|url=http://www.veganoutreach.org/enewsletter/matheny.html|title=Least harm: a defense of vegetarianism from Steven Davis’s omnivorous proposal|author=Gaverick Matheny|journal=Journal of Agricultural and Environmental Ethics|volume=16|pages=505-511|year=2003|id={{doi|10.1023/A:1026354906892}}}}</ref>

Revision as of 04:51, 30 May 2007

"Vegan" redirects here. For other uses, see Vegan (disambiguation).

Veganism (also known as strict vegetarianism or pure vegetarianism), as defined by the Vegan Society, is "a philosophy and way of living which seeks to exclude—as far as is possible and practical—all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose." A vegan (one who practices veganism) does not consume or use animal products, notably meat, fish, poultry, eggs and dairy products. People become vegans for a variety of reasons, including ethical concerns for animal rights or the environment, as well as perceived health benefits and spiritual or religious concerns. Polls have variously reported vegans to be between 0.2% and 1.3% of the US population, and between 0.25% and 0.4% of the UK population.

Definition

The word vegan, usually pronounced , was originally derived from "vegetarian" in 1944 when Elsie Shrigley and Donald Watson, frustrated that the term "vegetarianism" had come to include the eating of dairy products, founded the UK Vegan Society. They combined the first three and last two letters of vegetarian to form "vegan," which they saw as "the beginning and end of vegetarian." The British Vegan Society defines veganism in this way:

he word "veganism" denotes a philosophy and way of living which seeks to exclude — as far as is possible and practical — all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose; and by extension, promotes the development and use of animal-free alternatives for the benefit of humans, animals and the environment. In dietary terms it denotes the practice of dispensing with all products derived wholly or partly from animals.

— Vegan Society

Other vegan societies use similar definitions.

Demographics

A 2002 Time/CNN poll, found that 4% of American adults consider themselves vegetarians, and 5% of self-described vegetarians consider themselves vegans. This suggests that 0.2% of American adults are vegans. Also in 2002, the UK Food Standards Agency reported that 5% of respondents self-identified as vegetarian or vegan. Though 29% of that 5% said they avoided "all animal products" only 5% reported avoiding dairy. Based on these figures, approximately 0.25% of the UK population follow a vegan diet. In 2005, The Times estimated there were 250,000 vegans in Britain, which suggests around 0.4% of the UK population is vegan.

A 2006 poll conducted by Harris Interactive in the United States listed specific foods and asked respondents to indicate which items they never eat, rather than asking respondents to self-identify. The results found that, of the 1,000 adults polled, 1.4% never eat meat, poultry, fish, seafood, dairy products, or eggs. They were, in other words, vegan (except for possibly honey) in their eating habits. The survey found that about 1.4% of men and 1.3% of women have vegan diets.

Animal products

Main article: Animal product

The term "animal product" in a vegan context refers to material derived from animals for human use. Notable animal products include meat, poultry, seafood, eggs, dairy products, honey, fur, leather, wool, and silk. Common animal by-products include gelatin, lanolin, rennet, whey, beeswax and shellac.

Animal ingredients can be found in countless products and are used in the production of—though not always present in the final form of—many more; many of these ingredients are esoteric, also have non-animal sources, and especially in non-food products may not even be identified. Although some vegans attempt to avoid all of these ingredients, Vegan Outreach argues that "it can be prohibitively expensive and time-consuming to shun every minor or hidden animal-derived ingredient," and therefore that doing what is "best for preventing suffering" is more important than identifying and excluding every animal ingredient.

Motivations

Ethics

See also: Ethics of eating meat
Sows at an intensive pig farm. Opposition to factory farming is one of the most common ethical reasons given for veganism.

Many vegans take the position that animals have their own interests and therefore it is not ethical for humans to use animals in any way they see fit. These vegans therefore avoid supporting the cruelty involved in factory farming, animal testing, and groups which display animals for entertainment, such as circuses, rodeos, and zoos.

Legal theorist Gary L. Francione argues that sentience in animals is sufficient to grant them moral consideration and that adopting veganism should be regarded as the "baseline" action taken by people concerned with animal rights. Utilitarian philosopher Peter Singer argues that the suffering of sentient animals is relevant to ethical decisions, and advocates both veganism and improved conditions for farm animals as a means to reduce animal suffering.

Some critics have questioned the validity of the ethical claims put forward by vegans, stating that "the belief that all life is sacred can lead to absurdities such as allowing mosquitoes to spread malaria, or vipers to run loose on one's premises." However, many vegans do not believe that all animal life is sacred, instead following veganism for other reasons. Peter Singer advocates veganism for utilitarian reasons, stating that the benefit caused by a good taste for the human who consumes animal products is more than negated by the pain felt by the beings who are consumed.

Health

Fruit is a staple of a vegan diet.

Some studies have strongly correlated a plant based diet with better health benefits than the Standard American Diet. Vegans claim additional health benefits are gained by not consuming artificial substances such as growth hormones and antibiotics, which are often given to farmed animals.

The American Dietetic Association and Dietitians of Canada state that "well-planned vegan and other types of vegetarian diets are appropriate for all stages of the life cycle, including during pregnancy, lactation, infancy, childhood, and adolescence. Vegetarian diets offer a number of nutritional benefits, including lower levels of saturated fat, cholesterol, and animal protein as well as higher levels of carbohydrates, fiber, magnesium, potassium, folate, and antioxidants such as vitamins C and E and phytochemicals. Vegetarians have been reported to have lower body mass indices than nonvegetarians, as well as lower rates of death from ischemic heart disease; vegetarians also show lower blood cholesterol levels; lower blood pressure; and lower rates of hypertension, type 2 diabetes, and prostate and colon cancer."

Vegan diets tend toward several nutritional benefits, including lower levels of saturated fat and cholesterol, and higher levels of carbohydrates, fiber, magnesium, potassium, folate, antioxidant vitamins C and E and phytochemicals.

The Physicians Committee for Responsible Medicine says that one small scale study has observed that a vegan diet can reduce blood cholesterol in people with, and significantly reduce the complications of Type 2 diabetes.

Vegan athletes compete in a variety of sports, such as powerlifting, bodybuilding, martial arts, long distance running, and many others. Multiple Olympic gold medallist Carl Lewis has stated that he became vegan in 1990 and achieved his "best year of track competition" when he ate a vegan diet.

Some studies have found benefits associated with diets rich in whole plant foods, and risks associated with diets rich in animal-based foods. One of the researchers from the 1990 epidemiological study, "The China Study," said "Even small increases in the consumption of animal-based foods was associated with increased disease risk." A 1998 Spanish study asserted that "here is a growing body of evidence to show that consumption of fruit and vegetables may protect against development of cerebrovascular disease." Conversely, studies in Japan found that increased consumption of some animal products coincided with a decrease in risk for some forms of cerebrovascular disease and stroke mortality.

There are also claims that industry livestock feeding practices pose health threats to human consumers. According to Dr. Michael Greger in a January 2004 lecture at MIT (which is the basis for Whistleblower, a 2007 documentary film by Jeff Bellamar) each year more than one million tons of animal excrement are fed back to farm animals raised for human consumption to lower the feed costs. He also says that up to 10% of blood from killed animals is mixed into some cattle feed, and up to 30% of some poultry feed is made up of the blood. Bovine spongiform encephalopathy (BSE), commonly known as mad cow disease, is believed to be caused by cows being fed with contaminated meat and bone meal, a high-protein substance obtained from the remnants of butchered animals, including cows and sheep. In most parts of the developed world, such remnants are no longer allowed in feed for ruminant animals, and the World Health Organization recommends a complete ban on ruminant-to-ruminant feeding, but the practice persists in a few countries.

Resources and the environment

Main article: Environmental vegetarianism

People who adopt veganism for environmental reasons do so on the basis that veganism consumes fewer resources and causes less environmental damage than an animal-based diet. Animal agriculture is linked to climate change, water pollution, land degredation, and a decline in biodiversity. Additionally, an animal-based diet is far less land, water and energy efficient than a vegan diet.

A 2006 study by Gidon Eshel and Pamela Martin, assistant professors of geophysics at the University of Chicago, found that a person switching from the average American diet to a vegan diet would reduce CO2 emissions by 1,485 kg.

The United Nations released a ground breaking report in November 2006 linking animal agriculture to environmental damage. The report, titled "Livestock’s Long Shadow–Environmental Issues and Options," concludes that the livestock sector (primarily cows, chickens, and pigs) emerges as one of the top two or three most significant contributors to our most serious environmental problems, at every scale from local to global. It is one of the largest sources of greenhouse gases - responsible for 18% of the world’s greenhouse gas emissions as measured in CO2 equivalents. By comparison, all transportation emits 13.5% of the CO2. It produces 65% of human-related nitrous oxide (which has 296 times the global warming potential of CO2) and 37% of all human-induced methane (which is 23 times as warming as CO2).

Steven Davis, professor of animal science at Oregon State University, argues that the number of wild animals killed in crop production is greater than those killed in ruminant-pasture production. Whenever a tractor goes through a field to plow, disc, cultivate, apply fertilizer and/or pesticide, and harvest, animals are killed. Davis gives a small sampling of field animals in the U. S. that are threatened by intensive crop production, such as: opossum, rock dove, house sparrow, European starling, black rat, Norway rat, house mouse, Chukar, grey partridge, ring-necked pheasant, wild turkey, cottontail rabbit, gray-tailed vole, and numerous species of amphibians. In one small example, an alfalfa harvest caused a 50% decline in the gray-tailed vole population. According to Davis, if all of the cropland in the U. S. were used to produce crops for a vegan diet, it is estimated that around 1.8 billion animals would be killed annually.

Gaverick Matheny, a Ph.D. candidate in agricultural economics at the University of Maryland, claims that Davis' reasoning contains several major flaws, including distorting the notion of "harm" to animals, and miscalculating the number of animal deaths based upon areas of land rather than per consumer. Matheny claims that vegetarianism actually kills less animals, promotes better treatment of animals, and allows more animals to exist.

Vegan cuisine

For recipes and further information see the Wikibooks Cookbook article on Vegan Cuisine.

The cuisines of most nations contain dishes that are suitable for a vegan diet, as are specific traditional ingredients such as tofu, tempeh and the wheat product seitan in Asian diets. Many recipes that traditionally contain animal products can be adapted by substituting vegan ingredients, e.g. nut, grain or soy milk used to replace cow's milk; eggs replaced by substitutes such as products made from starch. Additionally, artificial "meat" products ("analogs" or "mock meats") made from non-animal derived ingredients such as soy or gluten, including imitation sausages, ground beef, burgers, and chicken nuggets are widely available.

Similar diets and lifestyles

Diets such as raw veganism, freeganism and fruitarianism are related to veganism, but have significant differences from standard veganism. There are also numerous religious groups that regularly or occasionally practice a similar diet, including some Buddhist traditions, Jains, Hindus, Rastafarians, and the Seventh-day Adventists.

Health effects

Main article: Vegan nutrition

The position of the American Dietetic Association is that "appropriately planned" vegan diets "are healthful, nutritionally adequate, and provide health benefits in the prevention and treatment of certain diseases." Vegans are potentially at risk for being deficient in nutrients such as vitamin B12, vitamin D, calcium, iodine and omega-3 fatty acids. These deficiencies can have potentially serious consequences, including anemia, rickets and cretinism in children, and osteomalacia and hyperthyroidism in adults. Supplementation, particularly for vitamin B12, is highly recommended for vegans.

Specific nutrients

Vitamin B12, a bacterial product, cannot be reliably found in plant foods. While it may take one to five years to exhaust some individual's reserves of vitamin B12, many people do not have such reserves and serious health consequences are a risk as a result of B12 deficiency. Additionally, mild B12 deficiency can develop even with such reserves. In a 2002 laboratory study, more of the strict vegan participants' B12 and iron levels were compromised than those of lacto- or lacto-ovo-vegetarian participants. The Vegan Society and Vegan Outreach, among others, recommend that vegans either consistently eat foods fortified with B12 or take a daily or weekly B12 supplement. Tempeh, seaweed, spirulina, organic produce, soil on unwashed vegetables, and intestinal bacteria have not been shown to be reliable sources of B12 for the dietary needs of vegans.

Adequate amounts of vitamin D may be obtained by spending 15 to 30 minutes every few days in the sunlight, although this may be difficult for vegans in areas with low levels of sunlight during winter.

A 2007 study showed that vegans have an increased risk of bone fractures than both meat eaters and vegetarians, likely due to lower dietary calcium intake, but that vegans consuming more than the UK's estimated average requirements for calcium (525 mg/day) had risk of bone fractures similar to other groups. It is recommended that vegans eat three servings per day of a high calcium food, such as fortified soy milk and take a calcium supplement as necessary.

Link with eating disorders

The American Dietetic Association found that vegetarian diets may be more common among adolescents with eating disorders than in the general adolescent population, and that professionals should be aware of adolescents who limit the food choices and exhibit symptoms of eating disorders. The ADA indicates that the evidence suggests that the adoption of a vegetarian diet does not lead to eating disorders, but "vegetarian diets may be selected to camouflage an existing eating disorder." Other studies and statements by dietitians and counselors support this conclusion.

Vegan pregnancies

The American Dietetic Association considers well planned vegan diets "appropriate for all stages of the life cycle, including pregnancy and lactation," but recommends vegan mothers supplement for iron, vitamin D, and vitamin B12. Severe vitamin B12 deficiency in lactating vegetarian mothers has been linked to deficiencies and neurological disorders in their children. A 2006 study found that vegan mothers are five times less likely to have twins than those who eat animal products.

References

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  19. "On Living With Compassion (Old version)". Vegan Outreach. Retrieved 2007-03-10. We believe that framing veganism as the avoidance of a specific list of "bad" ingredients is not the best way to achieve results. When looked at closely, any ingredients-based definition of vegan collapses into inconsistencies. This is why we stress that the essence of being vegan is working to end cruelty to animals.
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  54. ^ "Factory Farming: Mechanized Madness". People for the Ethical Treatment of Animals. Retrieved 2007-05-29. Factory farms are harmful to the environment as well. Each day, factory farms produce billions of pounds of manure, which ends up in lakes, rivers, and drinking water. ... Of all the agricultural land in the U.S., 80 percent is used to raise animals for food and grow the grain to feed them—that's almost half the total land mass of the lower 48 states. ... it takes more than 1,250 gallons of water to produce a pound of cow flesh, whereas it takes about 235 gallons of water to grow 1 pound of wheat.
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  56. "Environment: Water". Vegan Society. Retrieved 2007-05-29. If we put all of these figures together, we find that whilst wheat provides us with an average 27.5 kcal for each litre of water used, beef provides only 0.76 kcal per litre. This means that - based on the data presented to show that other figures were "overstated" - beef still requires 36 times as much water per calorie as wheat.
  57. "Environment: Energy". Vegan Society. Retrieved 2007-05-29. A plant-based vegan diet uses substantially less energy than a diet based on animal products. This energy is virtually all derived from fossil fuels, making meat and dairy consumption a contributing factor in air pollution, acidification, oil spills, habitat destruction and global warming.
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  99. ADA’s Public Relations Team (2006-10-03). "The Vegetarian Mom-to-Be". American Dietetic Association. Retrieved 2007-02-14.
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