Why is it that chronic deseases such as heart disease, Type 2 diabetes, and some cancers, dental crowding, and E. coli 0157:H7 infections have been increasing in industrialized countries (Dowdle 2009; Pollan 2008; Schlosser 2001; Wroth 2009)? Have technological advances in medicine and public health resulted in longer life expectancies and more age-related illnesses? Or, are these illnesses somehow linked with the industrialization of societies and industrial food production? Are these chronic illnesses correlated with an increasingly globalized food market that delivers exotic and out of season foods to ethnic groups that have not physiologically adapted to them? Or are these chronic diseases a product of over-population and insufficient food that is nutritious? Are the ever-more densely populated and urbanized industrial societies exceeding their carrying capacities for providing affordable and nutrient rich foods?
This report is from a research project I did in 2009 for a graduate level class called Social Evolution taught by an archaeologist. My goal was to discover and describe the markers (or in non-archeological terms "physical evidence") in the human body that indicate habitual industrial food consumption in populations. What I found out was that in populations that consume mostly industrial foods, the markers were mostly bad.
Chronic diseases, formerly known as “Western diseases” or “modern diseases,” are common industrialized countries such as the United States, Australia, Canada, Japan and countries in Western Europe. They are common in all populations acculturated to industrialized foods (CDC 2009; Kenner 2009; Pollan 2008; Price 2008; Roberts 2009; Schlosser 2001). In the United States where industrial food production and consumption predominate, chronic diseases are the leading causes of death and disability. They account for 7 out of 10 deaths among Americans each year according to the United States Centers for Disease Control (CDC 2009). Chronic diseases such as obesity, Type 2 diabetes, heart disease and some cancers are believed to be diet-related diseases by medical researchers (CDC 2009). Interestingly, chronic diseases are non-existent to extremely rare in non-industrialized and pre-agricultural societies (Miller 2008; Price 2008). Fossil remains from the Cro-Magnun period “show none of the diet-related chronic diseases that plague us today,” according to Neil Mann, an expert of paleonutrition at RMIT University in Melbourne, Australia (Roberts 2008:8). The only evidence of earlier peoples suffering from obesity and heart disease are the upper-class elites in early civilizations such as Ancient Egypt and Han China (Buck 1975; Rose 2009; Winslow 2009).
Human populations all over the world have physiologically adapted to a diversity of diets based on locally available foods and environments. There is no single ancestral diet that is optimal for everyone (Naban 2004:55). Some diets are entirely vegetarian and adapted to local wild and domesticated plants. Other diets are entirely carnivorous and adapted to local sources of animal protein prepared in a traditional manner. Most diets are a combination of both. But what humans have not adapted to, it appears, is the industrial food diet. The industrial diet features a high proportion of calories produced from grains. Grains are commodity foods that are easily produced, traded and stored with commercial profitability as the goal rather than nutritional value (Pollen 2008:10). “Grain is the closest thing in nature to an industrial commodity: storable, portable, fungible, ever the same today as it was yesterday and will be tomorrow,” says journalist and food activist Michael Pollen. He adds that, “Since it can be accumulated and traded, grain is a form of wealth…throughout history governments have encouraged their farmers to grow more than enough grain… (Pollen 2007:201).” In response to food surpluses, changes in diet were induced politically by elites to encourage further consumption of wealth-building commodity foods such as sugar and tea in Victorian England (Mintz 1985), corn derivatives such as high fructose corn syrup in modern day America and the consumption of maize in Inka empire (Hastorf 1990).
In fact, the key correlate between the development of early civilizations and the concentration of political power in the hands of a few was their ability to produce, store and control commodity food surpluses. According to anthropologist Bruce Trigger, it was “the upper classes’ ability to ensure that farmers produced substantial agricultural surpluses and that most of these surpluses be at the disposal of a small ruling group” that helped early civilizations develop, and, eventually, what that gave rise to the Industrial Revolution (Trigger 2003: 395).
This report is a review of illnesses linked to the consumption of industrial foods by looking at their prevalence in the populations that consume them. Or, in other words, looking that the dietary markers in populations that consume industrial foods.
The sources of data in this paper include ethnographic research of the diets of both industrial and non-industrial or self-contained societies, where access to industrial foods is limited, and medical and dental studies. Material evidence of food production and dietary markers are from ethnographic and archeological research.
Definition of Terms
Researchers and journalists have used many different terms to categorize processed foods commonly eaten in the United States and chronic non-infectious diseases. To make my explanations more clear about the correlation between chronic illnesses and food produced by the industrial food system I will define my terms.
Industrial foods
Instead of referring to refined and processed foods made from access to cheap commodity grains such as corn, wheat or soy as “fast food,” “modern” foods or “Western” foods as some researchers do, I use a generalized term “industrial foods” because it describes their key differentiating feature: their industrial method of production (Price 2008; Pollan 2008; Schlosser 2001; Weber 2009). Industrial food production is a mechanized system in which “inputs” of capital “in the form of seeds, fertilizers, pesticides, machines, fuels, and research” are expected to deliver a predictable income from “outputs” such as grain, meat or processed foods made from them (Roberts 2008:25). The main “hallmarks of the industrial food system,” according to Joel Salatin, a third-generation sustainable farmer in Virginia are these:
· Centralized food production and processing
· Mono-speciation (growing only one species on a piece of land)
· Genetically modified plant species that require artificial fertilizers and herbicides and can not adapt to fluctuations in the environment
· Confined animal feeding operations (also known as feedlots or CAFOs for “centralized agricultural feed operations;” These generate huge concentrations of animal waste and methane –a significant source of green-house gas emissions)
· Chemicals that end in “cide” (Latin for “death) such as herbicides and fungicides
· Ready-to-Eat packaged convenience foods
· Long-distance transportation based on fossil fuels
· Externalized costs that hurt the economy, society, ecology and human health (Salatin 2009:189).
Most of the food consumed in the United States is produced by the industrial food system. “For all intents and purposes, the traditional farm has vanished,” according to journalist and industrial food system expert Paul Roberts in his book The End of Food (Roberts 2008:23).
Self-contained society
A “self-contained society” in this paper means any society that is either not industrialized or is not involved with an industrialized economic system by purchasing or consuming manufactured commodity foods. I use the term “self-contained society” instead of referring to self-contained population that produces it’s own food as a “non-Western” or ”pre-industrial” society as do some researchers (Mintz 1985; Trigger 2003). Self-contained societies are societies that produce their own nutritious food in adequate quantities and in environmentally sustainable ways.
Chronic Diseases
Chronic Illnesses are obesity, Type 2 diabetes, heart disease and cancer (CDC 2009a). These are also known as “Western diseases” due to their early prevalence in Western Europe and rarity in non-European or Euro-American societies until the last hundred years (Pollan 2008). It was once believed that only Westerners suffered from chronic diseases until British doctor Denis Burkitt and other Western researchers in the early 20th Century observed that non-Westerners were also suffering from these diseases once they adopted a diet of refined and processed foods (Pollan 2008:91). The diseases seemed to occur with the introduction of sugar, refined flour, and processed “store foods” that contained high concentrations of fat or sodium (Pollan 2008:91). Chronic diseases are also known as “modern diseases” due to their significant increases world wide in the past 50 years (Miller 2008:15).
Illnesses traced to industrial foods
The industrial food system’s over-abundance and centralized production have some unintended consequences. Chronic diseases, food borne illnesses and dental crowding have been linked to the consumption of industrial foods. All three of these have increased significantly in industrial societies where people are acculturated to industrial foods.
Chronic diseases
“Chronic diseases—such as heart disease, cancer, and diabetes—are the leading causes of death and disability in the United States. Chronic diseases account for 7 out of 10 deaths among Americans each year,” according to the U.S. Centers for Disease Control (CDC 2009a). Today, heart disease is leading killer worldwide (Winslow 2009:A5). As the most lethal chronic disease some believe it is an unavoidable consequence of modern times. However, the upper classes in early civilizations such as Ancient Egypt suffered from heart disease, too. A team of archeologists and medical imaging specialists has recently found out that seven of the eight mummies, determined to be older than 45, they examined from the National Museum of Antiquities in Cairo, had obvious symptoms of heart disease. The “artherosclerosis looks just like it does in our modern-day patients,” cardiologist Randall Thompson said (Winslow 2009:A5). Today, due to industrial food production, high-calorie and high-sodium diets combined with a sedentary lifestyle, are now the provenance of commoners (Pollen 2008).
“Every year, cancer claims the lives of more than half a million Americans. Cancer is the second leading cause of death in the United States, exceeded only by heart disease,” according to the U.S. Centers for Disease Control (Centers for Disease Control 2009c).
“The United States has the highest obesity rate of any industrialized nation in the world,” according to food activist Eric Schlosser (Schlosser 2001).” Obesity is a growing problem in the United States. “More than one third of U.S. adults—more than 72 million people—and 16% of U.S. children are obese. Since 1980, obesity rates for adults have doubled and rates for children have tripled according to the U.S. Centers for Disease Control and Prevention (Centers for Disease Control and Prevention 2009b).”
At least “23.6 million people in the United States (7.8% of the total population) have diabetes. Of these, 5.7 million are undiagnosed,” according to the U.S. Centers for Disease and Prevention (Centers for Disease Control and Prevention 2009d). “If current trends continue, 1 in 3 Americans will develop diabetes sometime in their lifetime, and those with diabetes will lose, on average, 10–15 years of life,” according to the U.S. Centers for Disease Control and Prevention,”(Centers for Disease Control and Prevention 2009d).
Food borne illnesses
“Some 5,000 Americans die and 325,000 are hospitalized annually as a result of food contamination.” according to a 2009 news brief about food safety in Time Magazine (Time 2009:57).” Food borne illnesses traced to large-scale factory farms and CAFOs has increased significantly “with some of the biggest recalls in U.S. history occurring in the last few years (Schlosser 2009: 14). E. coli 0157:H7 is a particularly lethal strain of bacteria produced in the gut of a corn fed feedlot cow didn’t exist until 1980 and by 2005, 15 years later, was responsible for 73,000 illnesses and 2,000 hospitalizations (Frenzen 2005; Pollan 2006:82). Centralized meat production has brought new epidemics into the food system from pathogens that didn’t exist before the industrial food system: camphylobacter, lysteria, E. coli, salmonella, bovine spongiform encephalopathy, avian influenza or bird flu (Salatin 2009:188).
Dental crowding
Nearly two-thirds of Americans suffer from some degree of dental crowding or malocclusion caused by insufficient alveolar (tooth arch) bone growth that is related their diet diet (Rose 2009). “In contrast, most of modern society’s ancestors naturally had ideal alignment without malocclusion and their third molars were fully erupted and functioning (Rose 2009).” Recent research on relatives who consume industrial foods and those show don’t indicate that refined foods cause these pathologies and not inherited traits (Rose 2009). Dental researcher Weston Price believed that the increasing incidence of dental crowding and tooth decay that he saw in the 1920s was due to “poor health” caused by the consumption of nutritionally inferior produce grown with artificial fertilizers, factory farmed meat and processed foods made of refined grains and preserved foods (Price 2008:xxiv).
Next week, in Part II of Illnesses Linked to Industrial Foods, I will post several explanations for the increase of chronic disease, dental crowding and E. coli infections in the United States and other industrialized countries. In Part III next week I will post my research results and my references.
A multisport blog by a mom and anthropologist. I have been researching the sport sub-cultures of marathon runners and triathletes and just took up masters rowing. I've done 2 IMs, 1 ultra (50K), 17 marathons, and 50+ triathlons since 1988. Current fitness focus: Stay injury free and learn as much as possible
Friday, January 29, 2010
Thursday, January 7, 2010
Stop running (or not) & lose weight by changing your diet
I believe that our bodies are adapted to mobility (such as walking or running) and surviving periods of food scarcity. Faced with running each day (or nearly each day), our body's metabolism adapts and slows down becoming more efficient with it's caloric fuel. I have a friend who complained to me that she runs hilly trails every day and she feels chubby. I've experienced the same thing, when training for a marathon, after awhile my weight plateaus and I will actually gain weight if I eat too many junk food carbs.
Science research (and personal experience!) supports that we crave ingredients that are rare in nature: sugar, fat, salt.So after a period of time, running every day and eating carbs with higher-than-found-in-nature levels of sugar, fat and salt may often result in weight gain or at least, no weight loss.
If you cut your carbs from refined grain sources and add weight training to increase your muscle mass you can increase your metabolism and burn through those excess calories. Follow that up with a decrease in your sugar, fat and salt consumption and I think most people will see the results with a more muscular and lean physique in about a month. This is because they are approaching weight loss on two fronts: increased calorie absorption through increased muscle mass-induced metabolism gains and reduced calorie intake from less nutritionally "empty" calories. Basically they are making their bodies less efficient in fuel consumption--like a big engine SUV. Increasing muscle mass is like increasing the size of one's engine. I tried this strategy and it worked better than I had expected. I even stopped running due a running injury (plantar fasciitis and hip bursitis) so I was working out less--just weight training for three months-- and I still lost weight.
On September 28, the day after I did the Sprint of the Carpinteria Triathlon, I got a cast on my foot. My plantar fasciitis, in spite of not running and daily stretching, arch supports, night splints, ice, tennis balls and other arcane treatments, was getting worse, not better. For the month of October I could not run, bike or swim--nothing but weight train. I was feeling chubby, and pretty bummed about my situation until I applied my nutrition research on myself.
Being my own test subject I radically changed my diet to exclude processed foods and industrially produced foods. By "industrial foods" I mean non-organic produce, genetically modified produce and animal products, animal products produced from CAFOs (Concentrated Agricultural Feeding Operations) and anything already prepared. I've been eating solely organic, mostly locally produced produce from a local CSA (Community Supported Agriculture) program. "CSA Program" is fancy name for a basket of fresh produce that I pick up each week at a local farm). For protein I get lot's of nuts, beans, organic dairy products and free-range poultry products. I haven't baked my own bread yet but I am making my own corn tortillas from scratch to avoid preservatives. By eating these foods I am getting nutrition-dense food and avoiding the big three industrial food additives that are bad for my health in excess: sugar, salt and fat. The organic foods are more costly, but not eating out anymore and not buying energy bars or other processed foods is really saving me money. The cost to our family food budget of the non-industrial diet is significantly less than with our usual diet.
I've been researching various diets and native foodways and sports nutrition for a while as an anthropology graduate student (see my foodways research on triathletes and marathon runners in an earlier posting here). I noticed that native populations that consumed their traditional foods did not suffer from chronic diseases that are the number one killers in the United States: heart disease, obesity, Type 2 diabetes and some cancers. Yet, healthy and physically fit triathletes and marathon runners still seem to suffer from heart disease and some cancers. After a bit more anthropological research I've found that it's not genetics, it's the industrial diet that is the root cause of these chronic diseases. I've come to the conclusion that if you avoid processed foods and don't eat anything made of refined grains (no store bought bread, no pizza, no pastries, muffins, burger buns, flour tortillas, white rice, corn chips, crackers, pasta,etc.), you will be healthier and feel better. In addition to the refined grain foods I have been avoiding processed packaged foods such as frozen foods, canned foods, nutrition bars, or any beverage made with corn syrup such as Gatoraid and sodas. Following my "non-industrial diet" in just one month caused a weight loss of about 3-4 pounds. The refined grains have nearly no nutrition (so you're just adding fat calories) so why do we continue to eat them? It's culture and tradition. Pre-race meals of pasta dinners, nutrition bars and food supplements during racing and a group Saturday morning runs followed by coffee and muffins. I think the traditions of consuming industrial foods is killing us.
For three months (October thru December) I weight trained three times a week and stuck to my whole foods/no refined grains non-industrial diet and lost 5 pounds since September. I'm 5 foot 9 inches and I began at 139 lbs and now weigh consistently at 134 lbs. This is with no cardio workouts. Crazy, huh?
I'm easing back into running again, with short runs of 30 minutes a week focusing on my gait and stretching a lot before and after. The heel pain from my plantar fasciitis is officially gone. (Woohoo!) I'm going to try to stick to my non-industrial diet and see if I can sustain it with increased running mileage and the need for more carbohydrate energy. If the Kenyans and the Tarahumara can run fast for hours on a traditional non-industrial diet, why can't I?
I should start a diet plan...
Science research (and personal experience!) supports that we crave ingredients that are rare in nature: sugar, fat, salt.So after a period of time, running every day and eating carbs with higher-than-found-in-nature levels of sugar, fat and salt may often result in weight gain or at least, no weight loss.
If you cut your carbs from refined grain sources and add weight training to increase your muscle mass you can increase your metabolism and burn through those excess calories. Follow that up with a decrease in your sugar, fat and salt consumption and I think most people will see the results with a more muscular and lean physique in about a month. This is because they are approaching weight loss on two fronts: increased calorie absorption through increased muscle mass-induced metabolism gains and reduced calorie intake from less nutritionally "empty" calories. Basically they are making their bodies less efficient in fuel consumption--like a big engine SUV. Increasing muscle mass is like increasing the size of one's engine. I tried this strategy and it worked better than I had expected. I even stopped running due a running injury (plantar fasciitis and hip bursitis) so I was working out less--just weight training for three months-- and I still lost weight.
On September 28, the day after I did the Sprint of the Carpinteria Triathlon, I got a cast on my foot. My plantar fasciitis, in spite of not running and daily stretching, arch supports, night splints, ice, tennis balls and other arcane treatments, was getting worse, not better. For the month of October I could not run, bike or swim--nothing but weight train. I was feeling chubby, and pretty bummed about my situation until I applied my nutrition research on myself.
Being my own test subject I radically changed my diet to exclude processed foods and industrially produced foods. By "industrial foods" I mean non-organic produce, genetically modified produce and animal products, animal products produced from CAFOs (Concentrated Agricultural Feeding Operations) and anything already prepared. I've been eating solely organic, mostly locally produced produce from a local CSA (Community Supported Agriculture) program. "CSA Program" is fancy name for a basket of fresh produce that I pick up each week at a local farm). For protein I get lot's of nuts, beans, organic dairy products and free-range poultry products. I haven't baked my own bread yet but I am making my own corn tortillas from scratch to avoid preservatives. By eating these foods I am getting nutrition-dense food and avoiding the big three industrial food additives that are bad for my health in excess: sugar, salt and fat. The organic foods are more costly, but not eating out anymore and not buying energy bars or other processed foods is really saving me money. The cost to our family food budget of the non-industrial diet is significantly less than with our usual diet.
I've been researching various diets and native foodways and sports nutrition for a while as an anthropology graduate student (see my foodways research on triathletes and marathon runners in an earlier posting here). I noticed that native populations that consumed their traditional foods did not suffer from chronic diseases that are the number one killers in the United States: heart disease, obesity, Type 2 diabetes and some cancers. Yet, healthy and physically fit triathletes and marathon runners still seem to suffer from heart disease and some cancers. After a bit more anthropological research I've found that it's not genetics, it's the industrial diet that is the root cause of these chronic diseases. I've come to the conclusion that if you avoid processed foods and don't eat anything made of refined grains (no store bought bread, no pizza, no pastries, muffins, burger buns, flour tortillas, white rice, corn chips, crackers, pasta,etc.), you will be healthier and feel better. In addition to the refined grain foods I have been avoiding processed packaged foods such as frozen foods, canned foods, nutrition bars, or any beverage made with corn syrup such as Gatoraid and sodas. Following my "non-industrial diet" in just one month caused a weight loss of about 3-4 pounds. The refined grains have nearly no nutrition (so you're just adding fat calories) so why do we continue to eat them? It's culture and tradition. Pre-race meals of pasta dinners, nutrition bars and food supplements during racing and a group Saturday morning runs followed by coffee and muffins. I think the traditions of consuming industrial foods is killing us.
For three months (October thru December) I weight trained three times a week and stuck to my whole foods/no refined grains non-industrial diet and lost 5 pounds since September. I'm 5 foot 9 inches and I began at 139 lbs and now weigh consistently at 134 lbs. This is with no cardio workouts. Crazy, huh?
I'm easing back into running again, with short runs of 30 minutes a week focusing on my gait and stretching a lot before and after. The heel pain from my plantar fasciitis is officially gone. (Woohoo!) I'm going to try to stick to my non-industrial diet and see if I can sustain it with increased running mileage and the need for more carbohydrate energy. If the Kenyans and the Tarahumara can run fast for hours on a traditional non-industrial diet, why can't I?
I should start a diet plan...
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