Cole Murphy
University of Alaska, Anchorage
Nixon, ENG 214
The Lacto-Ovo-Vegetarian
Abstract
In this paper, the argument that a vegetarian diet is not nutritionally sound is explored through research as well as through the personal narrative of a discussion from which the arguments made reflect the arguments are supported and challenged, namely, the omnivorous diet as an evolutionary adaptation (claiming that eating meat is natural), the necessity of nutrients including Iron and B12 that are often overlooked in a vegetarian diet (claiming that neglecting essential vitamins is dangerous), and the high cost of maintaining a healthy diet that conforms to vegetarian/vegan ethics (claiming that a vegetarian diet is not realistic). Research done regarding the evolution and adaptation of an omnivorous diet looks primarily at studies done by Lund University and by archaeologist Manuel Dominguez-Rodrigo, each focusing on the early consequence of Iron and B12 related deficiency in developing infants’ bone samples as well as the benefits for humanity in adopting an early omnivorous diet. Research done regarding nutrient deficiencies examines studies done in India by the University of Western Australia and the University of New South Wales, which reveals the positive correlation between vegetarian diets and anemia. These two main points defend the argument that the vegetarian diet is linked to damage to human health, however the final point and brief commentary throughout the paper introduce the counterargument that being mindful towards diet, whether one eats meat or is vegetarian, is better facilitated with a vegetarian-geared, nutritionally aware dietary practice.
Last year I decided to cut beef, pork, lamb, and other large meats out of my diet altogether. Then, my reasons were completely ethical, having just seen films including Meet Your Meat(2002), Food Inc(2008)., and GMO OMG(2013). These films showcase facts regarding the actual resources necessary for and environmental consequences of having tasty stake at the dinner table, the terrible reality behind much of the mass-farming industry and associated corporations’ animal-handling practices, and the general level of my own ignorance regarding my own awareness of what I’ve been eating all my life respectively. After watching these admittedly biased films, I felt that it was morally wrong to partake by any means in the unacceptable treatment of farm animals, especially cows, pigs, and chicken. Today I still wrestle with the moral legitimacy behind consuming eggs from hens whom will never see the sun or set foot on the ground (cage-free egg brand for the win!) Ethics, however, did not originally keep me from eating red meat at family meals and gorging on bacon during the Epic Meal Time craze. Although I struggled at first with really committing to the diet, I was finally able to validate my pursuit after an experience I had last Thanksgiving. In September of 2013, I decided to go a month without any meat aside from eggs and fish. Towards the end of the month, I felt a new sort of clarity throughout my body; I felt as if my stomach was lighter, my head more focused, and I really started to vibe with the veggies. Then the Thanksgiving turkey, ham, bacon, and beef-gravy hit, and I experienced a stomach flip of shmorgishborg proportion. From that point, I became a Lacto-Ovo-Vegetarian, or a vegetarian who includes eggs and dairy products into their diet, the most common form of vegetarianism, though I live with an aspiring chef, my roommate Taseen, and I won’t deny him the occasional outside perspective on a sizzling teriyaki steak-bite.
The Vegetarian Diet: Mindful Pursuit or Nutritional Crisis
Earlier this year, my roommate Sam, having just reorganized our kitchen and food-stuff purchases, made an investment in over $150 of quality frozen meats. Together in the kitchen, my Sam, our friend Steve (whom is a professional chef from Detroit), and I were talking about the recipes we could finally start really working with into our freshly stocked kitchen. The conversation screeched to a halt, however, when I took a step out of the culinary closet and told Sam and Steve that I am gearing my diet towards being a vegetarian. Sam promptly questioned the diet, arguing that humans are designed by nature to be omnivorous, and that our historic diet is what made us intelligent. In agreement, Steve began thoroughly listing the essential proteins and nutrients (i.e. B12, Vitamin D, Iron and Calcium) that the vegetarian diet neglects and why they are important. Additionally, both concerned friends agreed that being a vegetarian in college is not cost-effective, and in the end is ‘not even worth it’.
In an age pre-dating the Paleolithic Era in the ancient human history, the bio-behavioral shift from a tree-dwelling, vegetarian diet, to the plains-running omnivorous diet is among the largest changes ever in early human anatomy and behavior. One major factor of this change is the addition of nutritiously rich meat into the diets of young children. Research done by Lund University makes clear the fact that infants around the age of 2 could be weaned off of their mothers, whereas the regular weaning age extended to as far as 5-6 years of age (Rivero, 2012). The main body of evidence regarding a meat-eating diet speeding the process of breast-feeding/weaning (and thus increasing birthing rates) is a series of comparisons made with other omnivorous mammalian species in infant neurological developmental periods as compared by Elia Psouni, a developmental psychologist at Lund, with assistance from an evolutionary geneticist (Axel Janke) and a neurophysiologist (Martin Garwicz). Their model looked at more than 60 omnivorous (with diet of at least 20% meat) mammalian species in early development (including humans), with the null hypothesis that there is no correlation between the time of early brain development and the weaning phase of infant mammals introduced to meat. In the case of humans, the time (in years of age) it took infants to reach critical brain developmental points decreased in proportion to the time at which infants are weaned, thus leading to the conclusion that eating meat has increased human intelligence on an evolutionary standpoint (Rivero, 2012). Thus, the research shows that, in fact, with statistical significance, there is a positive correlation between critical stages in brain development and the time of weaning in all animals tested. These results clearly show that eating meat was a key development towards both increasing brain functioning in early humans and decreasing the breast-feeding commitment (in years spent breastfeeding a single child) necessary of mothers toward their young, which in turn increased social complexity and increased population growth, a huge step in the late proliferation and advancement of the human race.
Further research regarding the omnivorous past of all human ancestors done by archaeologist Manuel Dominguez-Rodrigo explains that a 1.5 million-year-old skull sample of a young child revealed that human brain development depended on the high-energy high-nutritional value of meat (Choi, 2012). In this instance, Dominguez-Rodrigo examined the oldest known sample of tissue (the child’s skull) affected by anemia. In short, anemia is a consequence of numerous nutritional deficiencies that the National Heart, Lung, and Blood Institute (NHLBI) defines generally as a “condition in which your blood has a lower than normal number of red blood cells… [or when] red blood cells don’t contain enough hemoglobin [an iron-rich protein that carries oxygen through bloodstream].” Anemia is relevant here because it is among the most prevalent nutritional conditions afflicting vegetarians worldwide and throughout time. This prehistoric case of anemia, specifically linked to a lack of B12, relaying that 1.5 million years ago, humans had come to depend on a regular consumption of meat, and that the child (or its mother) was B12 deficient. Concluding his research, Dominguez-Rodrigo stated reflectively that it might “sound awful to vegetarians, but meat made us human” (Dominguez-Rodrigo as cited by Choi, 2012). Today humans depend on most of the same nutrients we adapted to in our historically omnivorous diet, thus a vegetarian diet does not make sense evolutionarily or nutritionally, and is in fact a dietary risk in its own right.
Considering this evidence, the only means by which I could retort Sam’s argument was by relaying the ethical matter at hand; although modern humans arose from an original culture that regularly consumed animal flesh, people today have the free-will and information-tools to lead perfectly healthy lives without the regular consumption of meat (i.e. supplements, access to any food item worldwide, or easily accessible nutritional alternatives). On the matter of ethics, however, vegetarianism points to one of humanity’s longest enduring challenges: Malnutrition.
Ultimately, malnutrition is among the most prevalent issues in today and throughout history, and vegetarians are very much at risk for key deficiencies in associated with malnutrition. India, for instance, is the most prevalently vegetarian country in the world, where 31%-42% (considering standard deviation of samples) of the population is vegetarian (The Hindu, Aug. 2006). Research done in 2012 published in the International Scholarly Research Network (ISRN) Public Health suggests that there is a correlation between vegetarianism in Indian women and the increased likelihood to suffer from bone-density loss (calcium-deficiency), pre-natal developmental disorders and abnormalities (protein and Vitamin D deficiency), and anemia (Iron and B12 Deficiency). The research looked primarily at iron-deficiency anemia (via hemoglobin levels) as reported by the Indian National Family and Health Survey 2005/06 of 81,301 Indian women of all states and social classes ages 15-49. In analyzing the varied data, researchers Anu Rammohan and Niyi Awofeso (University of Western Australia) and Marie-Claire Robitaille (University of New South Wales) looked at sample categories including personal education, husband’s education, number of children, BMI, Caste, wealth levels, and water supply. This data was then cross-referenced with data of the same samples categorized instead by diet-related variables (e.g., never eating meat vs. eating meat daily). The data analysis revealed that, in addition to higher education status, social status, and socioeconomic status, the “daily consumption of meat, fish, and eggs was associated with lower odds of being moderately or severely aneamicsic” (Awofeso et al., 2012). This conclusion, having taken specific social differences India into consideration, heralds a serious caution to vegetarians in any country to carefully monitor their nutrition.
The focus of this research on anemia in India is critical in analyzing the prevalent nutritional short-comings of the vegetarian diet because Iron-deficiency anemia is the largest nutritional condition in the vegan and vegetarian community. In the 5th edition of Simply Vegan, Reed Mangels, PhD, and Debra Wasserman, PhD, extrapolate on Iron as it relates to human digestion. Mangels and Wasserman write that the nutrient Iron is observed and absorbed under two classifications: Heme Iron, which is 40% of the iron found in most types of animal flesh and is easy to absorb during digestion, and Non-heme Iron, which makes up the other 60% of Iron in meat and 100% of the Iron in vegetables and is not easily absorbed during digestion (rvg.org, Iron in the Vegan Diet). Furthermore, Calcium, Protein, and Vitamin D are more easily acquired in a vegetarian diet than are Iron and B12. In our lengthy kitchen conversation, Sam contemplated the realistic approach of implementing regular supplements into his diet to replace his own missed-out essentials, but his counterpart was not entirely convinced. Steve, a professional chef by industry standards, primarily emphasized the vegetarian diet’s distinct lack of the vitamin B12, stating that B12 is something I should take seriously, as it is often disregarded in the vegetarian diet. Indeed, without supplements, animal products are the only natural source of the vitamin B12.
In a 2004 Annual Review of Nutrition journal article titled “Vitamin B12 Deficiency as a Worldwide Problem” researchers A. Robert and S. Stabler present the numerous dangers associated deficiency of the vitamin B12. Robert and Stabler begin by defining biological B12, or Cobalamin, as a nutrient that is “bound to enzymes in food and must be released by the action of gastric enzymes and acid prior to being bound by a protein synthesized by gastric parietal cells (Robert, Stabler, par.4). From digestion and initial absorption into the bloodstream, B12 is carried to bone marrow, where it, along with Iron, aids in the synthesis of hemoglobin, the main bio-chemical device in getting air into and carbon dioxide out of every each cell throughout the body. Regarding vegetarians specifically, Robert and Stabler observed the worldwide rise in a condition called hyperhomocysteinemia to positively correlate with Pernicious anemia, the main form of anemia in most instances of B12 deficiency due to lack of consuming animal products.
Without a doubt, Steve’s assertions were backed by recent scientific research, and thus warrant a serious topic that vegetarians and vegans cannot ignore safely. The follow-up argument that Sam made, unfortunately, did not deliver the same proof. Financially aware, Sam explained his belief that keeping up with nutrition in my situation specifically could prove especially difficult. As a full-time college student, watching my spending is a critical matter of staying afloat, especially living off campus and away from my parents. To satisfy my nutritional requirements as prescribed by the Brown University Sports Nutrition webpage, I would have to eat 9-15 servings of breads/grains, 3+ servings from vegetables, 3-5 servings from fruit, 3+ servings from dairy (while ensuring that I reach a daily intake of at least 1000mg of calcium), 6oz+ of protein/meat, and mind that 20-35% of all calories consumed come from fats and lipids. This is indeed a costly optimal diet, adding up to a rough minimum of $30 daily including the alternatives that must be made for vegetarians without considering quality, organic ingredients. However, these nutritional requirements are also intended for those who eat meat, and hold very similar consumer prices in comparison to a vegetarian’s optimal grocery purchases. Nonetheless, Sam’s argument does hold true for many vegans, who often purchase products made specifically for vegan consumers. Prices are generally higher for vegan products to meet these same nutritional demands. Vegans, unlike Lacto-ovo-vegetarians, must also take supplements to have any B12 in their diet. Ultimately, an individual who is more focused on satisfying the requirements of a completely balanced diet will end up paying more for his/her food, pointing to the fact that the more attention one places on healthy nutrition, the more healthy one will be.
In the end, nutritionally aware people, whether meat-eating or otherwise, make very similar choices regarding how to best balance their diets. Ingredient awareness and the ability to supplement key nutrients provide individuals with the opportunity to fine-tune their diets, though in the modern day, this is an often unpracticed and unavailable option for many people. In relation to vegetarians, people whom eat meat are proportionately more nutrient-deficient in Vitamin C and in fiber. Without the resources or time to develop and practice a healthy diet, countless men, women, and children face malnutrition every day, even in 1st-world countries.
Although the majority of people find all of their health and wellness requirements satisfied in a meat-eating diet, research suggests that a vegetarian-geared diet is an excellent means to benefit individual health and mindfulness because it involves the nutritional awareness of the food we eat and of the food we need to eat. Thus, I argue that having a diet geared towards mindfulness, diet tracking, and the practice of lacto-ovo-vegetarianism is among the healthiest and overall most beneficial choices in diet a human can make.
I would like to invite meat-eaters to take a 1-2 weeks off of one of the following: pork, beef, or chicken, and see how it impacts their lives. Many of us have no restriction on our diets, and don’t really give food a second thought, but when we set certain rules or standards for ourselves, we begin to grow a larger body of mindfulness regarding the food we eat. Through my experience, I’ve decided that food ought to really taste better when one considers where it came from and how it ended up on the dinner table, and that eating with your mind in the food is half of the joy of eating.
Works Cited
N.A. “What Is Iron-Deficiency Anemia?.” – NHLBI, NIH. NIH, 26 Mar. 2014. Web. 28 Oct. 2014. < http://www.nhlbi.nih.gov/health/health-topics/topics/ida/>.
Rammohan, A., Awafeso, N. M-C, Robitaille. “Addressing Femaile Iron-Deficiency Anaemia in India: Is Vegetarianism the Major Obstacle?” ISRN Public Health. Hindawi Publishing Corporation, 1 Sept. 2014. Web. 1 Nov. 2014 <http://www.hindawi.com/journals/isrn/2012/765476/>.
Stabler, S.P., and R.H. Allen. “Vitamin B12 Deficiency As A Worldwide Problem.” Annual Review of Nutrition 24.1 (2004): 299-326. Proquest.com Web. 28 Oct. 2014. <http://search.proquest.com.proxy.consortiumlibrary.org/docview/204129670/3BD4F37 D6D84C8BPQ/1?accountid=14473>.
Yadav, Yogendra, and Kumar, Sanjay. “The Food Habits of a Nation.” The Food Habits of a Nation. The Hindu, 14 Aug. 2006. Web. 31 Oct. 2014. <http://www.thehindu.com/todays-paper/article3089973.ece>.
Choi, Charles. “Eating Meat Made Us Human, Suggests New Skull Fossil.” LiveScience. TechMedia Network, 3 Oct. 2012. Web. 1 Nov. 2014. <http://www.livescience.com/23671-eating-meat-made-us-human.html>.
Rivero, Eduardo. “Meat Eating behind Evolutionary Success of Humankind, Global Population Spread, Study Suggests.” ScienceDaily. ScienceDaily, 20 Apr. 2012. Web. 1 Nov. 2014. <http://www.sciencedaily.com/releases/2012/04/120420105539.htm>.