Vegetarianism

Coordinates	12°58′0″N77°34′0″N
Above	Vegetarianism
Abovestyle	background-color: lightgreen
Image1
Headerstyle	background-color: lightgreen
Label2	Description
Data2	The absence of meat, poultry, and fish in the human diet
Label3	Origins
Data3	Ancient India, Ancient Greece-6th century BCE and earlier
Label4	Varieties
Data4	Ovo, lacto, ovo-lacto, veganism, raw veganism, fruitarianism, Buddhist vegetarianism

Vegetarianism encompasses the practice of following plant-based diets (fruits, vegetables, etc.), with or without the inclusion of dairy products or eggs, and with the exclusion of meat (red meat, poultry, and seafood). Abstention from by-products of animal slaughter, such as animal-derived rennet and gelatin, may also be practiced.

Vegetarianism can be adopted for different reasons: In addition to ethical reasons, some reasons for vegetarianism include health, religious, political, environmental, cultural, aesthetic or economic, and there are varieties of the diet: An ovo-vegetarian diet includes eggs but not dairy products, a lacto-vegetarian diet includes dairy products but not eggs, and an ovo-lacto vegetarian diet includes both eggs and dairy products. A vegan diet excludes all animal products, such as eggs, dairy, and honey.

Various foods or treats, such as cake, chocolate, chips, gum, marshmallows and gummy candies, often contain unfamiliar animal ingredients, and may especially be a concern for vegetarians due to the likelihood of such additions. Vegetarians may vary in their feelings regarding these ingredients, however. While some vegetarians are unaware of animal-derived rennet's role in the usual production of cheese and may therefore unknowingly consume the product, for example, others of the diet are not bothered by its consumption. A pescetarian diet, for example, includes "fish but no meat". The common use association between such diets and vegetarianism has led vegetarian groups such as the Vegetarian Society to state diets containing these ingredients are not vegetarian, due to fish and birds being animals.

Etymology

The Vegetarian Society, founded in 1847, says that the word “vegetarian” is derived from the Latin word vegetus meaning lively or vigorous. Despite this, the Oxford English Dictionary (OED) and other standard dictionaries state that the word was formed from the term "vegetable" and the suffix "-arian". The OED writes that the word came into general use after the formation of the Vegetarian Society at Ramsgate in 1847, though it offers two examples of usage from 1839 and 1842.

History

The earliest records of (lacto) vegetarianism come from ancient India and ancient Greece in the 6th century BCE. In both instances the diet was closely connected with the idea of nonviolence towards animals (called ahimsa in India) and was promoted by religious groups and philosophers.

Following the Christianisation of the Roman Empire in late antiquity, vegetarianism practically disappeared from Europe. Several orders of monks in medieval Europe restricted or banned the consumption of meat for ascetic reasons, but none of them eschewed fish. It re-emerged during the Renaissance, becoming more widespread in the 19th and 20th centuries. In 1847, the first vegetarian society was founded in the United Kingdom; Germany, the Netherlands, and other countries followed. The International Vegetarian Union, a union of the national societies, was founded in 1908. In the Western world, the popularity of vegetarianism grew during the 20th century as a result of nutritional, ethical, and more recently, environmental and economic concerns.

Varieties of vegetarianism

, India.]] There are a number of types of vegetarianism, which exclude or include various foods.

Ovo vegetarianism includes eggs but not dairy products.

Lacto vegetarianism includes dairy products but not eggs.

Ovo-lacto vegetarianism (or lacto-ovo vegetarianism) includes animal/dairy products such as eggs, milk, and honey.

Veganism excludes all animal flesh and animal products, including milk, honey, and eggs, and may also exclude any products tested on animals, or any clothing from animals. Raw veganism includes only fresh and uncooked fruit, nuts, seeds, and vegetables. Vegetables can only be cooked up to a certain temperature. Fruitarianism permits only fruit, nuts, seeds, and other plant matter that can be gathered without harming the plant.

Buddhist vegetarianism (also known as su vegetarianism) excludes all animal products as well as vegetables in the allium family (which have the characteristic aroma of onion and garlic): onion, garlic, scallions, leeks, or shallots.

Jain vegetarianism includes dairy but excludes eggs and honey, as well as root vegetables.

Macrobiotic diets consist mostly of whole grains and beans.

Some vegetarians also avoid products that may use animal ingredients not included in their labels or which use animal products in their manufacturing; for example, sugars that are whitened with bone char, cheeses that use animal rennet (enzymes from animal stomach lining), gelatin (derived from the collagen inside animals' skin, bones and connective tissue), some cane sugar (but not beet sugar) and apple juice/alcohol clarified with gelatin or crushed shellfish and sturgeon, while other vegetarians are unaware of such ingredients. as some dictionary definitions pertaining to vegetarianism vary and include the consumption of fish, Necessary nutrients, proteins, and amino acids for the body's sustenance can be found in vegetables, grains, nuts, soymilk, eggs and dairy. Vegetarian diets offer lower levels of saturated fat, cholesterol and animal protein, and higher levels of carbohydrates, fibre, magnesium, potassium, folate, and antioxidants such as vitamins C and E and phytochemicals.

Vegetarians tend to have lower body mass index, lower levels of cholesterol, lower blood pressure, and less incidence of heart disease, hypertension, type 2 diabetes, renal disease, osteoporosis, dementias such as Alzheimer’s disease and other disorders. Non-lean red meat, in particular, has been found to be directly associated with increased risk of cancers of the esophagus, liver, colon, and the lungs. Other studies have shown no significant differences between vegetarians and non-vegetarians in mortality from cerebrovascular disease, stomach cancer, colorectal cancer, breast cancer, or prostate cancer, although the sample of vegetarians was small and included ex-smokers who had switched their diet within the last five years.

The 2010 version of Dietary Guidelines for Americans, a report issued by the U.S. Department of Agriculture and the U.S. Department of Health and Human Services every five years states:

In prospective studies of adults, compared to non-vegetarian eating patterns, vegetarian-style eating patterns have been associated with improved health outcomes—lower levels of obesity, a reduced risk of cardiovascular disease, and lower total mortality. Several clinical trials have documented that vegetarian eating patterns lower blood pressure.

A 2011 study published in the Journal of Agricultural And Food Chemistry stated that Vegetarians tend to have a lower body weight, less incidence of high blood pressure and lower overall cholesterol but have an increased risk of cardiovascular disease.

On average, vegetarians consume a lower proportion of calories from fat (particularly saturated fatty acids); fewer overall calories; and more fiber, potassium, and vitamin C than do non-vegetarians. Vegetarians generally have a lower body mass index. These characteristics and other lifestyle factors associated with a vegetarian diet may contribute to the positive health outcomes that have been identified among vegetarians.

Nutrition

Western vegetarian diets are typically high in carotenoids, but relatively low in long-chain n-3 fatty acids and vitamin B₁₂. Vegans can have particularly low intake of vitamin B and calcium if they do not eat enough items such as collard greens, leafy greens, tempeh and tofu (soy). High levels of dietary fibre, folic acid, vitamins C and E, and magnesium, and low consumption of saturated fat are all considered to be beneficial aspects of a vegetarian diet.

Protein

Protein intake in vegetarian diets is only slightly lower than in meat diets and can meet daily requirements for any person, including athletes and bodybuilders. Studies at Harvard University as well as other studies conducted in the United States, United Kingdom, Canada, Australia, New Zealand and various European countries, confirmed vegetarian diets provide sufficient protein intake as long as a variety of plant sources are available and consumed. Proteins are composed of amino acids, and a common concern with protein acquired from vegetable sources is an adequate intake of the essential amino acids, which cannot be synthesised by the human body. While dairy and egg products provide complete sources for lacto-ovo vegetarians, the only vegetable sources with significant amounts of all eight types of essential amino acids are lupin, soy, hempseed, chia seed, amaranth, buckwheat, and quinoa. However, the essential amino acids can also be obtained by eating a variety of complementary plant sources that, in combination, provide all eight essential amino acids (e.g. brown rice and beans, or hummus and whole wheat pita, though protein combining in the same meal is not necessary). A 1994 study found a varied intake of such sources can be adequate.

Iron

Vegetarian diets typically contain similar levels of iron to non-vegetarian diets, but this has lower bioavailability than iron from meat sources, and its absorption can sometimes be inhibited by other dietary constituents. Vegetarian foods rich in iron include black beans, cashews, hempseed, kidney beans, lentils, oatmeal, raisins, black-eyed peas, soybeans, many breakfast cereals, sunflower seeds, chickpeas, tomato juice, tempeh, molasses, thyme, and whole-wheat bread. The related vegan diets can often be higher in iron than vegetarian diets, because dairy products are low in iron. and 58 % of the respective vegetarian or vegan groups). However, the American Dietetic Association states that iron deficiency is no more common in vegetarians than non-vegetarians (adult males are rarely iron deficient); iron deficiency anaemia is rare no matter the diet.

Vitamin B₁₂

Plants are not sources of vitamin B₁₂. According to the US National Institutes of Health "natural food sources of vitamin B₁₂ are limited to foods that come from animals." However, lacto-ovo vegetarians can obtain B₁₂ from dairy products and eggs, and vegans can obtain it from fortified foods (including some soy products and some breakfast cereals) and dietary supplements. Vitamin B₁₂ can also be obtained from yeast extract products. The research on vitamin B₁₂ sources has increased in recent years.

The human body can preserve stores of B₁₂ for up to 30 years, and reuses the vitamin without destroying the substance. However, clinical evidence shows a widespread deficiency of B₁₂ in vegans and, to lesser degree, vegetarians.

Fatty acids

Plant-based, or vegetarian, sources of Omega 3 fatty acids include soy, walnuts, pumpkin seeds, canola oil, kiwifruit and especially hempseed, algae, chia seed, flaxseed, echium seed and purslane. Purslane contains more Omega 3 than any other known leafy green. Plant foods can provide alpha-linolenic acid but not the long-chain n-3 fatty acids EPA and DHA, which are found in low levels in eggs and dairy products. Vegetarians, and particularly vegans, have lower levels of EPA and DHA than meat-eaters. While the health effects of low levels of EPA and DHA are unknown, it is unlikely that supplementation with alpha-linolenic acid will significantly increase levels. Recently, some companies have begun to market vegetarian DHA supplements containing seaweed extracts. Similar supplements providing both DHA and EPA have also begun to appear. Whole seaweeds are not suitable for supplementation because their high iodine content limits the amount that may be safely consumed. However, certain algae such as spirulina are good sources of gamma-linolenic acid (GLA), alpha-linolenic acid (ALA), linoleic acid (LA), stearidonic acid (SDA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and arachidonic acid (AA).

Calcium

Calcium intake in vegetarians is similar to non-vegetarians. Some impaired bone mineralisation has been found among vegans who do not consume enough leafy greens, which are sources of abundant calcium. However, this is not found in lacto-ovo vegetarians. Some sources of calcium include collard greens, bok choy, kale, and turnip greens. Spinach, swiss chard and beet greens are high in calcium, but the calcium is bound to oxalate and therefore it is poorly absorbed.

Vitamin D

Vitamin D levels do not appear to be lower in vegetarians (although studies have shown that much of the general population is deficient). Vitamin D needs can be met via the human body's own generation upon sufficient and sensible exposure to ultraviolet (UV) light in sunlight. Products including milk, soy milk and cereal grains may be fortified to provide a good source of Vitamin D and mushrooms provide over 2700 IU per serving (approx. 3 oz or 1/2 cup) of vitamin D₂, if exposed to just 5 minutes of UV light after being harvested; for those who do not get adequate sun exposure and/or food sources, Vitamin D supplementation may be necessary.

Longevity

A 1999 metastudy combined data from five studies from western countries. The metastudy reported mortality ratios, where lower numbers indicated fewer deaths, for fish eaters to be 0.82, vegetarians to be 0.84, occasional meat eaters to be 0.84. Regular meat eaters and vegans shared the highest mortality ratio of 1.00. The study reported the numbers of deaths in each category, and expected error ranges for each ratio, and adjustments made to the data. However, the "lower mortality was due largely to the relatively low prevalence of smoking in these [vegetarian] cohorts". Out of the major causes of death studied, only one difference in mortality rate was attributed to the difference in diet, as the conclusion states: "...vegetarians had a 24% lower mortality from ischaemic heart disease than non-vegetarians, but no associations of a vegetarian diet with other major causes of death were established." a similar conclusion is drawn: "British vegetarians have low mortality compared with the general population. Their death rates are similar to those of comparable non-vegetarians, suggesting that much of this benefit may be attributed to non-dietary lifestyle factors such as a low prevalence of smoking and a generally high socio-economic status, or to aspects of the diet other than the avoidance of meat and fish."

The Adventist Health Study is an ongoing study of life expectancy in Seventh-day Adventists. This is the only study among others with similar methodology which had favourable indication for vegetarianism. The researchers found that a combination of different lifestyle choices could influence life expectancy by as much as 10 years. Among the lifestyle choices investigated, a vegetarian diet was estimated to confer an extra 1–1/2 to 2 years of life. The researchers concluded that "the life expectancies of California Adventist men and women are higher than those of any other well-described natural population" at 78.5 years for men and 82.3 years for women. The life expectancy of California Adventists surviving to age 30 was 83.3 years for men and 85.7 years for women.

The Adventist health study is again incorporated into a metastudy titled "Does low meat consumption increase life expectancy in humans?" published in American Journal of Clinical Nutrition, which concluded that low meat eating (less than once per week) and other lifestyle choices significantly increase life expectancy, relative to a group with high meat intake. The study concluded that "The findings from one cohort of healthy adults raises the possibility that long-term (≥ 2 decades) adherence to a vegetarian diet can further produce a significant 3.6-y increase in life expectancy." However, the study also concluded that "Some of the variation in the survival advantage in vegetarians may have been due to marked differences between studies in adjustment for confounders, the definition of vegetarian, measurement error, age distribution, the healthy volunteer effect, and intake of specific plant foods by the vegetarians." It further states that "This raises the possibility that a low-meat, high plant-food dietary pattern may be the true causal protective factor rather than simply elimination of meat from the diet." In a recent review of studies relating low-meat diet patterns to all-cause mortality, Singh noted that "5 out of 5 studies indicated that adults who followed a low meat, high plant-food diet pattern experienced significant or marginally significant decreases in mortality risk relative to other patterns of intake."

Statistical studies, such as comparing life expectancy with regional areas and local diets in Europe also have found life expectancy considerably greater in southern France, where a low meat, high plant Mediterranean diet is common, than northern France, where a diet with high meat content is more common.

A study by the Institute of Preventive and Clinical Medicine, and Institute of Physiological Chemistry looked at a group of 19 vegetarians (lacto-ovo) and used as a comparison a group of 19 omnivorous subjects recruited from the same region. The study found that this group of vegetarians (lacto-ovo) have a significantly higher amount of plasma carboxymethyllysine and advanced glycation endproducts (AGEs) compared to this group of non-vegetarians. Carboxymethyllysine is a glycation product which represents "a general marker of oxidative stress and long-term damage of proteins in aging, atherosclerosis and diabetes." "Advanced glycation end products (AGEs) may play an important adverse role in process of atherosclerosis, diabetes, aging and chronic renal failure."

The largest study ever of diet vs longevity and a host of western diseases was the China Project, a survey of death rates for 12 kinds of cancer for more than 2,400 counties and 880 million (96%) of their citizens. The project studied the relationship between various mortality rates and several dietary, lifestyle, and environmental characteristics in 65 mostly rural counties in China. A strong dose-response relationship was found between the amount of animal foods in the diet and the top causes of mortality in the West: heart disease, diabetes, and cancer. The project was conducted jointly by Cornell University, Oxford University, and the Chinese Academy of Preventive Medicine over the course of 20 years.

Food safety

E. coli contamination in food has been linked to industrial-scale meat and dairy farms. E. coli infections in the US during 2006 that were traced to spinach and onions were later determined to have been caused by a neighbouring cattle and wild pig farm whose feces had contaminated the water supply.

Transmission of pathogenic E. coli often occurs via fecal-oral transmission. Common routes of transmission include unhygienic food preparation Dairy and beef cattle are primary reservoirs of the E. coli strain O157:H7, Food products associated with E. coli outbreaks include raw ground beef, raw seed sprouts or spinach, In 2007, packaged lettuce salads were recalled after they were found to be contaminated with E. coli. E. coli outbreaks have been traced to unpasteurised apples, orange juice, milk, alfalfa sprouts, and water.

Outbreaks of salmonella have been traced to peanut butter, frozen pot pies & puffed vegetable snacks. Bovine spongiform encephalopathy (BSE), also known as mad cow disease, is linked by the World Health Organization to Creutzfeldt–Jakob disease in humans.

There have been reports of fears of foot-and-mouth disease in sheep, PCBs in farmed salmon, mercury in fish, dioxin concentrations in animal products, artificial growth hormones, antibiotics, lead and mercury, pesticide contamination of vegetables and fruits, banned chemicals being used to ripen fruits.

Medical use

In Western medicine, patients are sometimes advised to adhere to a vegetarian diet. Vegetarian diets have been used as a treatment for rheumatoid arthritis, but the evidence is inconclusive whether this is effective. Certain alternative medicines, such as Ayurveda and Siddha, prescribe a vegetarian diet as a normal procedure. Maya Tiwara notes that Ayurveda recommends small portions of meat for some people, though "the rules of hunting and killing the animal, practiced by the native peoples, were very specific and detailed. Now that such methods of hunting and killing are not observed, she does not recommend the use of "any animal meat as food, not even for the Vata types."

Physiology

Humans are omnivores, based on the human ability to digest meat as well as plant foods. Nutritional experts believe that early hominids evolved into eating meat as a result of huge climatic changes that took place three to four million years ago, when forests and jungles dried up and became open grasslands and opened hunting and scavenging opportunities.

Animal-to-human disease transmissions

The consumption of meat can cause a transmission of a number of diseases from animals to humans. The connection between infected animal and human illness is well established in the case of salmonella; an estimated one-third to one-half of all chicken meat marketed in the United States is contaminated with salmonella. The rate of disease among chickens is so high that the Department of Labor has ranked the poultry industry as one of the most hazardous occupations.

Transmission of animal influenza viruses to humans has been documented, but illness from such cases is rare compared to that caused by the now common human-adapted older influenza viruses, transferred from animals to humans in the more distant past. The first documented case was in 1959, and in 1998, 18 new human cases of H5N1 influenza were diagnosed, in which six people died. In 1997 more cases of H5N1 avian influenza were found in chickens in Hong Kong. The strongest evidence for a domestic-animal origin exists for measles and pertussis, although the data do not exclude a non-domestic origin.

According to the 'Hunter Theory', the "simplest and most plausible explanation for the cross-species transmission" the AIDS virus was transmitted from a chimpanzee to a human when a bushmeat hunter was bitten or cut while hunting or butchering an animal.

Historian Norman Cantor suggests the Black Death might have been a combination of pandemics including a form of anthrax, a cattle murrain. He cites many forms of evidence including the fact that meat from infected cattle was known to have been sold in many rural English areas prior to the onset of the plague.

Eating disorders

The American Dietetic Association indicates that vegetarian diets may be more common among adolescents with eating disorders but that the evidence suggests that the adoption of a vegetarian diet does not lead to eating disorders, rather that "vegetarian diets may be selected to camouflage an existing eating disorder." Other studies and statements by dietitians and counselors support this conclusion.{{#tag:ref|Vesanto Melina, a British Columbian registered dietitian and author of Becoming Vegetarian, stresses there is no cause and effect relationship between vegetarianism and eating disorders, although people who have eating disorders may label themselves as vegetarians "so that they won't have to eat." Indeed, research indicates that the large majority of vegetarian or vegan anorexics and bulimics chose their diets after the onset of their disease. The "restricted" eating patterns of vegetarianism and veganism can legitimize the removal of numerous high-fat, energy-dense foods such as meat, eggs, cheese. However, the eating pattern chosen by those with anorexia or bulimia nervosa is far more restrictive than a healthful vegetarian diet, eliminating nuts, seeds, avocados, and limiting overall caloric intake.|group="nb"}}

Ethics and diet

Various ethical reasons have been suggested for choosing vegetarianism, usually predicated on the interests of non-human animals.

Religion and diet

offers a wide range of vegetarian delicacies because Hinduism, practiced by majority of India's populace, encourages vegetarian diet. Shown here is a vegetarian thali.]] Jainism teaches vegetarianism as moral conduct as do some major sects of Hinduism. Buddhism in general does not prohibit meat eating, while Mahayana Buddhism encourages vegetarianism as beneficial for developing compassion. Other denominations that advocate a fully vegetarian diet include the Seventh-day Adventists, the Rastafari movement, the Ananda Marga movement and the Hare Krishnas. Sikhism does not equate spirituality with diet and does not specify a vegetarian or meat diet.

Hinduism

Most major paths of Hinduism hold vegetarianism as an ideal. There are three main reasons for this: the principle of nonviolence (ahimsa) applied to animals; the intention to offer only "pure" (vegetarian) food to a deity and then to receive it back as prasad; and the conviction that non-vegetarian food is detrimental for the mind and for spiritual development. Hindu vegetarians usually eschew eggs but consume milk and dairy products, so they are lacto-vegetarians.

However, the food habits of Hindus vary according to their community and according to regional traditions. Historically and currently, those Hindus who eat meat prescribe Jhatka meat.

Thirukkural – Classical tamil couplets

Thiruvalluvar in his Thirukkural has written 10 couplets on Avoidance Of Meat-Eating (251 to 260) (pulal unnaamai). He said that meat-eating and compassion or tenderness towards all life are incompatible. That is why he asks in anguish, "How can a meat-eater have compassion?" The chapter on the virtue of not killing animals and not eating their flesh has been held up as the crowning aspect of the ever-widening ripple of love (Anbu) expanding into compassion (Arul). Meat-eating is "at once the cause and consequence of butchery."

Thannoon perukkarkuth thaanpiridhu uoonunbaan Enganam aalum arul? – Kural 251

"It is inconsistent with the way of living compassion to fatten oneself on the flesh of a fellow-creature." Some particularly dedicated individuals are fruitarians. Honey is forbidden, because its collection is seen as violence against the bees. Some Jains do not consume plant parts that grow underground such as roots and bulbs, because tiny animals may be killed when the plants are pulled up.

Buddhism

Theravadins in general eat meat. If Buddhist monks "see, hear or know" a living animal was killed specifically for them to eat, they must refuse it or else incur an offense. However, this does not include eating meat which was given as alms or commercially purchased. In the Theravada canon, Buddha did not make any comment discouraging them to eat meat (except specific types, such as human, elephant, horse, dog, snake, lion, tiger, leopard, bear, and hyena flesh) but he specifically refused to institute vegetarianism in his monastic code when a suggestion had been made.

In several Sanskrit texts of Mahayana Buddhism, Buddha instructs his followers to avoid meat. However, each branch of Mahayana Buddhism selects which sutra to follow, and some branches, including the majority of Tibetan and Japanese Buddhists, do eat meat, while most Chinese Buddhists do not.

Sikhism

The tenets of Sikhism do not advocate a particular stance on either vegetarianism or the consumption of meat, but leave the decision of diet to the individual. The tenth guru, Guru Gobind Singh, however, prohibited "Amritdhari" Sikhs, or those that follow the Sikh Rehat Maryada (the Official Sikh Code of Conduct) from eating Kutha meat, or meat which has been obtained from animals which have been killed in a ritualistic way. This is understood to have been for the political reason of maintaining independence from the then-new Muslim hegemony, as Muslims largely adhere to the ritualistic halal diet. and Rarionwalay, etc.) are vehemently against the consumption of meat and eggs (though they do consume and encourage the consumption of milk, butter and cheese). This vegetarian stance has been traced back to the times of the British Raj, with the advent of many new Vaishnava converts. Passages from the Guru Granth Sahib (the holy book of Sikhs, also known as the Adi Granth) say that it is "foolish" to argue for the superiority of animal life, because though all life is related, only human life carries more importance: "Only fools argue whether to eat meat or not. Who can define what is meat and what is not meat? Who knows where the sin lies, being a vegetarian or a non-vegetarian?"

One modern-day scholar who is often cited as in favour of vegetarianism is the late Rabbi Abraham Isaac Kook, the Chief Rabbi of Mandate Palestine. In his writings, Rabbi Kook speaks of vegetarianism as an ideal, and points to the fact that Adam did not partake of the flesh of animals. In context, Rabbi Kook makes those comments in his portrayal of the eschatological (messianic) era. However, he personally refrained from eating meat except on the Sabbath and Festivals, and one of his leading disciples, Rabbi David Cohen, known as the "Nazirite" of Jerusalem, was a devout vegetarian. Several other members of Rabbi Kook's circle were also vegetarians.

According to some Kabbalists, only a mystic, who is able to sense and elevate the reincarnated human souls and "divine sparks", is permitted to consume meat, though eating the flesh of an animal might still cause spiritual damage to the soul. A number of Orthodox Jewish vegetarian groups and activists promote such ideas and believe that the halakhic permission to eat meat is a temporary leniency for those who are not ready yet to accept the vegetarian diet.

Translation of the Torah's Ten Commandments states, "Thou shalt not murder." Some people argue that this can also be taken as meaning not to kill at all, animals nor humans, or at least "that one shall not kill unnecessarily," in the same manner that onerous restrictions on slavery in the Bible have been interpreted by modern theologians as to suggest banning the practice. The Torah also commands people to ritually slaughter animals when killing them, and goes into precise detail on the rituals of both animal sacrifice and ordinary slaughter (shechita). According to medieval sage Rabbi Shlomo Ephraim Luntschitz, author of the Torah commentary Kli Yakar, the complexity of these laws was intended to discourage the consumption of meat.

Classical Greek and Roman

Ancient Greek philosophy has a long tradition of vegetarianism. Pythagoras was reportedly vegetarian (and studied at Mt. Carmel, where some historians say there was a vegetarian community), as his followers were expected to be. Socrates was reportedly vegetarian, and in his dialogue of what people, or at least Philosopher-rulers, in an ideal republic should eat, he described only vegetarian food. He specified that if meat-eating was allowed, then society would require more doctors.

Roman writer Ovid concluded his magnum opus Metamorphoses, in part, with the impassioned argument (uttered by the character of Pythagoras) that in order for humanity to change, or metamorphose, into a better, more harmonious species, it must strive towards more humane tendencies. He cited vegetarianism as the crucial decision in this metamorphosis, explaining his belief that human life and animal life are so entwined that to kill an animal is virtually the same as killing a fellow human.

Christianity

Vegetarianism is not a common practice in current Christian culture. However, Seventh Day Adventists and traditional monastics stress vegetarianism. As well, members of the Orthodox Church may follow a vegetarian diet during 'fast' times. The concept and practice of vegetarianism have scriptural and historical support.

There is also a strong association between the Quaker tradition within Christianity and vegetarianism dating back at least to the 18th century. The association grew in prominence during the 19th century, coupled with growing Quaker concerns in connection with alcohol consumption, vivisection and social purity. The association between the Quaker tradition and vegetarianism, however, becomes most significant with the founding of the Friends' Vegetarian Society in 1902 "to spread a kindlier way of living amongst the Society of Friends."

Islam

Followers of Islam, or Muslims, have the freedom of choice to be vegetarian for medical reasons or if they do not personally like the taste of meat. However, the choice to become vegetarian for non-medical reasons can sometimes be controversial. Though some more traditional Muslims may keep quiet about their vegetarian diet, the number of vegetarian Muslims is increasing.

Vegetarianism has been practiced by some influential Muslims including the Iraqi theologian, female mystic and poet Râbi‘ah al-‘Adawîyah of Basrah, who died in the year 801, and the Sri Lankan sufi master Bawa Muhaiyaddeen who established The Bawa Muhaiyaddeen Fellowship of North America in Philadelphia. The former Indian president Dr. A. P. J. Abdul Kalam is also famously a vegetarian.

In January 1996, The International Vegetarian Union announced the formation of the Muslim Vegetarian/Vegan Society.

Many non-vegetarian Muslims will select vegetarian (or seafood) options when dining in non-halal restaurants. However, this is a matter of not having the right kind of meat rather than preferring not to eat meat on the whole. He stated that there are no requirements that Bahá'ís become vegetarian, but that a future society would gradually become vegetarian. `Abdu'l-Bahá also stated that killing animals was contrary to compassion. both he and the Universal House of Justice, the governing body of the Bahá'ís have stated that these teachings do not constitute a Bahá'í practice and that Bahá'ís can choose to eat whatever they wish but should be respectful of others' beliefs. Most Rastafari are vegetarian.

Utensils made from natural material such as stone or earthenware are preferred.

Environment and diet

Environmental vegetarianism is based on the concern that the production of meat and animal products for mass consumption, especially through factory farming, is environmentally unsustainable. According to a 2006 United Nations initiative, the livestock industry is one of the largest contributors to environmental degradation worldwide, and modern practices of raising animals for food contributes on a "massive scale" to air and water pollution, land degradation, climate change, and loss of biodiversity. The initiative concluded that "the livestock sector emerges as one of the top two or three most significant contributors to the most serious environmental problems, at every scale from local to global."

In July 2009 Nike and Timberland stopped buying leather from deforested Amazon Rainforest a few weeks after a Greenpeace report demonstrated the destruction caused by Amazon cattle ranchers.

In addition, animal agriculture is a large source of greenhouse gases and is responsible for 18% of the world's greenhouse gas emissions as measured in CO₂ equivalents. By comparison, all of the world's transportation (including all cars, trucks, buses, trains, ships, and planes) emits 13.5% of the CO₂. Animal farming produces 65% of human-related nitrous oxide and 37% of all human-induced methane. Methane has about 21 times more Global Warming Potential (GWP) than carbon dioxide and nitrous oxide has 296 times the GWP of CO₂.

Animals fed on grain, and those that rely on grazing, need far more water than grain crops. According to the USDA, growing the crops necessary to feed farmed animals requires nearly half of the United States' water supply and 80% of its agricultural land. Additionally, animals raised for food in the U.S. consume 90% of the soy crop, 80% of the corn crop, and a total of 70% of its grain.

When tracking food animal production from the feed through to consumption, the inefficiencies of meat, milk and egg production range from 4:1 up to 54:1 energy input to protein output ratio. This firstly because the feed first needs to be grown before it is eaten by the cattle, and secondly because warm-blooded vertebrates need to use a lot of calories just to stay warm (unlike plants or insects). Ecology professor David Pimentel has claimed, "If all the grain currently fed to livestock in the United States were consumed directly by people, the number of people who could be fed would be nearly 800 million." To produce animal-based food seems to be, according to these studies, typically much less efficient than the harvesting of grains, vegetables, legumes, seeds and fruits. However, this would not apply to animals that are grazed rather than fed, especially those grazed on land that could not be used for other purposes. Nor would it apply to cultivation of insects for food, which may be more environmentally sustainable than eating food coming from cattle farming.

According to the theory of trophic dynamics, it requires 10 times as many crops to feed animals being bred for meat production as it would to feed the same number of people on a vegetarian diet. Currently, 70% of all the wheat, corn and other grain produced is fed to farmed animals. This has led many proponents of vegetarianism to believe that it is ecologically irresponsible to consume meat. Rearing a relatively small number of grazing animals can be beneficial, though, as the Food Climate Research Network at Surrey University reports: "A little bit of livestock production is probably a good thing for the environment.

In May 2009, Ghent, Belgium, was reported to be "the first [city] in the world to go vegetarian at least once a week" for environmental reasons, when local authorities decided to implement a "weekly meatless day". Civil servants would eat vegetarian meals one day per week, in recognition of the United Nations' report. Posters were put up by local authorities to encourage the population to take part on vegetarian days, and "veggie street maps" were printed to highlight vegetarian restaurants. In September 2009, schools in Ghent are due to have a weekly veggiedag ("vegetarian day") too.

Labor conditions and diet

Some groups, such as PETA, promote vegetarianism as a way to offset poor treatment and working conditions of workers in the contemporary meat industry. These groups cite studies showing the psychological damage caused by working in the meat industry, especially in factory and industrialised settings, and argue that the meat industry violates its labourers' human rights by assigning difficult and distressing tasks without adequate counselling, training and debriefing. However, the working conditions of agricultural workers as a whole, particularly non-permanent workers, remain poor and well below conditions prevailing in other economic sectors. Accidents, including pesticide poisoning, among farmers and plantation workers contribute to increased health risks, including increased mortality. According to the International Labour Organization, agriculture is one of the three most dangerous jobs in the world.

Economics and diet

Similar to environmental vegetarianism is the concept of economic vegetarianism. An economic vegetarian is someone who practices vegetarianism from either the philosophical viewpoint concerning issues such as public health and curbing world starvation, the belief that the consumption of meat is economically unsound, part of a conscious simple living strategy or just out of necessity. According to the Worldwatch Institute, "Massive reductions in meat consumption in industrial nations will ease their health care burden while improving public health; declining livestock herds will take pressure off rangelands and grainlands, allowing the agricultural resource base to rejuvenate. As populations grow, lowering meat consumption worldwide will allow more efficient use of declining per capita land and water resources, while at the same time making grain more affordable to the world's chronically hungry."

Demographics

A research study conducted on more than 8,000 people, and published in the British Medical Journal, suggested that children with an above average IQ may have a higher chance of becoming vegetarians in their adulthood.

Gender

A 1992 market research study conducted by the Yankelovich research organisation claimed that "of the 12.4 million people [in the US] who call themselves vegetarian, 68% are female, while only 32% are male."

At least one study indicates that vegetarian women are more likely to have female babies. A study of 6,000 pregnant women in 1998 "found that while the national average in Britain is 106 boys born to every 100 girls, for vegetarian mothers the ratio was just 85 boys to 100 girls." Catherine Collins of the British Dietetic Association has dismissed this as a "statistical fluke".

Country-specific information

See also

Ecotarian

Health food restaurant

List of diets

List of vegetarians

Meat-free day

Satya

Vegetarian cuisine

Vegetarian Diet Pyramid

Vegetarian or vegan cat food

Vegetarianism and Romanticism

Notes

References

External links

Vegetarian and Vegan Information

Resources/Support for Vegetarians

Shattering The Meat Myth: Humans Are Natural Vegetarians by Kathy Freston, The Huffington Post, June 11, 2009

Famous Vegetarians – slideshow by Life magazine

Can Sikhs Eat Meat?

Sikh History on Diet

Simple and healthy vegetarian cooking by Cecilia Carvalho by Cecilia Carvalho, My Veggie Recipes, February 1, 2011

Category:Animal rights Category:Diets Category:Ethical theories Category:Intentional living