Archive for March, 2010

Myths of The Vegetarian Myth

March 19, 2010

I feel the need to respond to The Vegetarian Myth by Lierre Keith, a horrendous piece of pseudoscience advocating the abandonment of modern agriculture and apparently modern ethics.

It should also be noted that despite her claimed to have been a vegan, Lierre Keith stated in an interview “I never cheated on beef, but I certainly binged on eggs and dairy every chance I got.”

Having lived on a small farm in Amish country and seeing modern and less modern ways of farming and raising animals I simply don’t think that small scale farming is sustainable for our population or is significantly more humane to animals than industrial scale farming. Setting aside my objection to animals being used as tools & resources leading to their unnecessary and untimely deaths, the living conditions and way animals are slaughtered on small family farms rarely differs significantly from slaughter methods on other larger farms. While I cant say that there is statistically no difference at all between small farms and large corporate farms, I do assert that the degree of difference especially in regards to animal use and treatment is practically meaningless especially to animal rightists and abolitionists.

So this book offends me on two fronts, it offends my ethical sensibilities by justifying exploiting and killing animals unnecessarily and by having a flippant attitude toward human starvation.
Secondly it offends my rationality and love for science by cherry picking data and twisting the science to justify an abandonment of modern agriculture without any viable alternative to feed our population or reduce it. The psychology claims she makes are laughable and are made extra offensive by using bad science to question the mental health of all vegans.

Until I can write my own rebuttal* I’m going to re-post a flier from Vegans for Sustainable Agriculture. I read it over and it seems to be pretty rational. They now have website here.

The Vegetarian Myth by Lierre Keith
Corrections to Some of the Many Errors and Misconceptions

The Claim: Lierre claims that grazed animal farming/polyculture can feed nine people per ten acres. (P. 101)
In Reality: Lierre lists the food produced on a ten acre perennial polyculture. Her numbers are based on Michael Pollan’s exposition of Joel Salatin’s Polyface Farm in The Omnivore’s Dilemma, and are arrived at by dividing the numbers for Salatin’s 100 acres of grass by ten. But Pollan explains at great length (P. 222-225) that the 100 acres of grass is actually 550 acres because the adjacent 450 acres of forest are essential to the health and productivity of the farm. Accordingly, ten acres of land actually feeds about two people rather than her estimate of nine. Lierre says that if you live in New England you should eat what grows there. However, with this level of productivity, you couldn’t feed all of New England on all the land in New England.

The Claim: “I built my whole identity on the idea that my life did not require death…Did the lives of nematodes and fungi matter? Why not? Because they were too small for me to see?” (P. 18)
In Reality: This straw man argument permeates throughout the book. These views are not held by most vegans nor any animal advocacy groups. The goal of veganism is to eliminate direct, unnecessary suffering at the hands of humans—not to magically end all death. Why shouldn’t the cow with its undeniable ability to feel pain, experience emotions and form relationships take precedence over plants and organisms with limited or non-existent nervous systems such as the nematodes Keith frets about in this book?

The Claim: Lierre claims that sustainable farming is not possible without domesticated livestock. “I would need domesticated animals—their labor and the products of their bodies—to farm sustainably. I needed their manure and their unspeakable bones, their inconceivable blood.” (P. 58)
In Reality: How then does she explain the success of vegan organic agriculture in the UK and US, where no animal inputs are used? How does she explain that the most successful organic CSA in the country actually uses no animal products on their fields (Honey Brook Farm in New Jersey)?

The Claim: “Understand: agriculture was the beginning of global warming. Ten thousand years of destroying the carbon sinks of perennial polycultures has added almost as much carbon to the atmosphere as industrialization, an indictment that you, vegetarians, need to answer. No one has told you this before, but that is what your food—those oh so eco-peaceful grains and beans—has done.” (P. 250)
The Reality: Much of Lierre’s book is borrowed from Richard Manning, a well-respected environmentalist and author. Manning understands that human dependence on grain monoculture is not the fault of the small percentage of concerned people who decided to be vegetarian, but is rather a historical mistake of which we all share the burden of repairing. Despite Lierre’s insistence, vegans do not need to eat grains nor any sort of annual monocrop. Why did she target vegans when compared to average corn-fed Americans, vegans consume much less grain?
On the topic of climate change, Lierre fails to address that regardless of type of feed or forage, ruminant animals emit an abundance of methane, a greenhouse gas up to 72-times more potent than carbon-dioxide. She, along with other grass-fed proponents, point out that growing pasture sequesters carbon in the subsoil and claim that farms like Polyface are carbon-neutral. However, she ignores the fact that soil can only retain a limited quantity of carbon—once pasture is healthy, the soil is carbon stable. Meat from pasture-based livestock contributes at least as much to climate change as meat from CAFOs—an indictment that you, Lierre, need to answer.

The Claim: “We’ve been doing what we’ve been endlessly badgered to do since the 1960s. We’ve eaten, according to the USDA, less fat, less meat, fewer eggs. Our dietary fat has fallen 10 percent, hypertension has dropped 40 percent and the number of us with chronically high cholesterol has declined 28 percent.” (P. 203)

In Reality: Americans eat more meat now than in the 1960s according to the USDA ( While the average percentage of calories from dietary fat consumption has decreased, dietary fat intake increased from 135 g to 178 g from 1960 to 2006 (

The Claim: “We owe our bodies what we owe the world; we must inhabit both and, in the act of inhabiting, nourish both. This food must also be an apology for what my kind has done, and part of the repair. It must protect this land, and extract from me the promise of more. My food is those things, all of them. It’s based on the forests and grasses that nestle this planet in soil and air.” (P. 271)
In Reality: Lierre’s own blog posts demonstrate that she can’t stick to her own ideals. She has posted entries where she raves about the perfection of grain-fed pork and happily offers a bucket of mass-produced, processed chocolate laden with factory-farmed dairy to trick-or-treaters last Halloween. If this is what she’ll post on her own blog, what other unsustainable foods is she eating? (,

The Claim: “…there are no good plant sources of tryptophan. On top of that, all the tryptophan in the world won’t do you any good without saturated fat.” And later Keith blames the lack of tryptophan in vegetarian diets for depression, insomnia, panic, anger, bulimia and chemical dependency. (P. 10)
In Reality: A cup of roasted soybeans contains nearly three times the adult RDA of tryptophan and a cup of pretty much any other bean will get you between 50-60% of the RDA. Two tablespoons of coconut oil more than meet the adult saturated fat RDA. Nuts, dark chocolate and avocado are all rich in saturated fat.

The Claim: “Sixty grams of soy protein—that’s one cup of soy milk—contains 45 mg of isoflavones.” (P. 215)

In Reality: The soy milks available in supermarkets have about 6 to 11 grams of soy protein per cup. According to Lierre’s often-cited Weston A. Price Foundation, a cup of soy milk contains only 20 mg of isoflavones.

The Claim: “I am of this world, carbon and breath like my parents, my siblings, the creatures great and small, single-celled or green, that create the miracle the rest of us consume. They gave me this body and the air it needs, the food it eats. All they ask is that I take my place, a predator, dependent and beholden, until I am prey.” (p. 271)
In Reality: The animals humans consume are quite literally prey, but unless Keith intends to be eaten by a wild animal, her claim of being “prey” is a specious one based on her decomposition. She considers this a repayment to the biosphere for its kindness in feeding her, but that same repayment is unacceptable from edible animals.

The Claim: Lierre claims that “Researchers from Cornell showed that E. Coli 0157:H7 could be stopped by a very simple action: feeding cows hay for the last five days of their lives.” (P. 99)
In Reality: In the study Lierre refers to, the researchers showed that overall E. Coli levels (i.e. including strains other than 0157:H7) in three cows were decreased by feeding the cows hay for five days. They conjectured that 0157:H7 levels would be similar. However, subsequent research suggests that grass-fed beef does not have lower levels of 0157:H7 (

The Claim: “The pursuit of a just, sustainable, and local economy will eventually lead us to the grim conclusion that there are simply too many of us. The world population is supposed to reach 8.9 billion by 2050. Meanwhile the oceans will be fished empty by 2050, the aquifers and water tables will be well out of reach, and the last trace of topsoil rendered dust. We are already living on fossil fuel and this—right now—is the historical moment when oil will peak. It will never be this cheap or accessible again. What then?” (P. 120)
Counterpoint: Keith has no answer to “What then?” The only answer one can deduce from the book is that she advocates nothing short of the elimination of agriculture and civilization and a drastic reduction of population to some level that she considers sustainable. Simultaneously, she believes that civilization’s doom (and consequently, an enormous loss of human life) will soon be upon us, so maybe it makes sense that her ideas are not solutions.

The only thing worth taking from The Vegetarian Myth is Lierre’s condemnation of the idea that the simple act of going vegan automatically solves all problems with our food production. True, some vegans and organizations do exaggerate the ecological benefits of eating highly processed, conventionally-grown vegan food. That said, it is still the easiest and most substantial immediate action a person can take on the path to a sustainable lifestyle. Into the future, a balanced plant-based diet of mixed perennial and annual fruits, vegetables, nuts and legumes grown in veganic** permaculture settings is our only hope for feeding an increasing population.

*for a little followup please see the post on cholesterol skeptics

**Im personally skeptical of the ability of organic foods to feed our whole population in a  resource efficient manner, though I certainly think too many potentially harmful substances are used in both conventional and organic agriculture. I would like to support organic farming, given the popular perception that it is pesticide-free but that’s not really true, nor is it necessarily “greener”, the list of permissible “organic” farming inputs is quite large and some of the included items might shock certain people. While I oppose the needless killing of insects and other “pests” and have an interest in the growing veganic movement, I feel that realistically a vegan diet using the most efficient farming methods (often non-organic and using hybrid or genetically modified crops when superior) is currently our best bet to reduce the impact of agriculture on the non-human world.

Further Reading:
PaleoVeganology – Paleofantasies and The Vegetarian Myth

Vegan Logic- The Vegetarian Myth – More to Take Away Than I Expected


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