Saving Your Child from an Over-Sanitized World

Let Them Eat Dirt: Saving Your Child from an Over-Sanitized World

By B. Brett Finlayy and Marie-Claire Arrieta

Algonquin Books of Chapel Hill (2016)

Book Review

Let Them Eat Dirt is a down-to-earth parental guide to the latest research about the role of intestinal bacteria in preventing obesity, diabetes, autism, schozophrenia, depression, anxiety, asthma, eczema, allergies, autoimmune illness, inflammatory bowel disease and irritable bowel syndrome. The book also provides a lot of practical suggestions for parents seeking to promote healthy gut bacteria in their kids.

Most research points to the avoidance of antibiotics during pregnancy and the first few months of life as being most important in preventing the gut-relaed illnesses described above. In addition to recommending that expectant mothers take probiotics and give them to their infants, the authors also emphasize the importance of vaginal birth and breast feeding in transferring maternal gut bacteria to the infant. Where C-section can’t be avoided, they recommend inoculating a newborn with a swab from the mother’s vagina.

Let Them East Dirt also provides numerous tips on increasing the diversity of gut bacteria to maximize immunity. In infants and children, this is done by exposing them to a wide variety of foods and indulging their natural urge to get dirty and put things in their mouths. Finlay and Arrieta believe children are biologically programmed to engage in these behaviors to increase gut bacteria diversity.

In discussing the science behind their recommendations, they point out that only 100 species of bacteria cause human illness, out of a total of 5,000,000,000,000,000,000,000,000,000,000 bacterial species on the planet. They also discuss the essential role “friendly” bacteria play in training the human immune system, as well as the devastating health consequences of disrupting this process through antibiotic overuse.

The part of the book I found most helpful gives useful suggestions for ways parents can work with pediatricians to safely minimize antibiotic use in their kids.

The Care and Feeding of Gut Bacteria

The Diet Myth: The Real Science Behind What We Eat

by Tim Spector

Weidenfeld and Nicholson (2015)

Book Review

The Diet Myth is all about looking after our intestinal bacteria – which are ultimately responsible for the proper functioning of our digestive, immune, endocrine and nervous system. As Professor Tim Spector explains, all mammals co-evolved over millions of years with the bacteria that inhabit their intestines. Because these bacteria produce a number of vital biochemicals that our bodies are genetically incapable of producing, without them the species homo sapiens would not exist. This relatively recent discovery has led many scientists to classify the microbiome (the collective name given to gut bacteria) as a vital organ like the brain, liver or kidneys.

Civilization hasn’t been kind to our intestinal bacteria. For various reasons (overuse of antibiotics, processed foods and pesticides like Roundup), urban life has caused us to lose half of the septillions of gut bacteria we started out with. Nearly all the chronic illnesses that plague modern society (obesity, heart disease, stroke, diabetes, cancer, autoimmune disease, depression, autism, schizophrenia and possibly drug addiction and alcoholism) can be traced to loss or malfunction of intestinal bacteria.

For this book, Spector has chosen to focus on dietary research into foods that improve the health and diversity of our remaining gut bacteria. He blames the myriad of contradictory diet fads on the reality that each human being has their own distinct collection of bacteria. This means the foods that keep them healthy depend on the preferences of their particular bacteria.

Fortunately he’s able to make a few general recommendations that seem to apply to most people.

According to Spector, people with the most diverse profile of gut bacteria are the healthiest. The best way to promote this diversity is through a diverse fiber-rich diet that includes:

• At least 20 different food types per week
• A daily serving of 5 vegetables and 2 fruits
• Daily servings of probiotic foods (fermented foods, such as yogurt, sauerkraut and miso, raw milk and unpasteurized cheeses) that contain beneficial bacteria.*
• Daily servings of prebiotic foods rich in polyphenols that gut bacteria love**
• A strict limitation on red meat,*** sugar, refined carbohydrates, transfats (hydrogenated fats found in vegetable oils, margarine and Crisco) and processed foods

Research also indicates that lifestyle factors such as exercise (athletes have the most diverse microbiomes) also promote bacterial diversity (and good health). As does episodic fasting.****

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*These mainly provide different strains of lactobacillus and bifidobacteria that crowd out harmful inflammatory gut bacteria.

**Foods rich in polyphenols include dark chocolate, coffee, green tea, turmeric, red wine, onions, garlic, (uncooked) extra-virgin olive oil, roasted nuts, Jerusalem artichokes, chicory root, leeks, asparagus, broccoli, bananas, wheat bran and fermented fruits and vegetables.

***Citing numerous studies, Spector totally debunks the claim that red meat is harmful due to its fat content. He maintains the risk associated with red meat is the conversion (by gut microbes) of L-carnitine to trimethylamine oxide, which causes plaque build-up in arteries (in Europeans – this effect appears to be absent in other ethnic groups). He recommends that Europeans limit their intake of red meat to ½ serving or less per day. Those who eat more than this have a 10% increase in mortality. Those who eat one daily serving or more of processed meat (sausages, ham, salami, etc) have a 40% increase in mortality.

****When people fast, a gut organism caused Akkermansia cleans up gut inflammation by feeding off the intestinal lining. Research reveals specific benefit from the 5/2 diet in which people fast two days a week and eat normally the other five.

The Care and Feeding of Intestinal Bacteria

My personal knowledge and understanding of intestinal bacteria stems from being diagnosed with a Clostridium difficile in 2012. C. difficile is an opportunistic intestinal infection that typically develops when excessive antibiotic exposure kills off normal gut bacteria. According to Dr Thomas Borody, the Sydney gastroenterologist I consulted, I most likely became infected with C difficile in 1993 owing to excessive use of broad spectrum antibiotics for a chronic sinus infection. For 19 years other doctors dismissed my extremely debilitating symptoms (constant watery diarrhea, pain and insomnia) as “irritable bowel syndrome” and told me I had to live with them.

Borody, founder and director of Sydney’s Center for Digestive Diseases, is world renowned for pioneering the use of fecal transplantation to treat C. difficile, ulcerative colitis and other bowel disorders triggered by an imbalance of intestinal bacteria. A growing number of doctors and holistic practitioners have come to regard intestinal bacteria, collectively known as the “microbiota” as a vital organ like the brain, liver and kidneys.

Regretfully fecal transplants didn’t work for me. My symptoms persisted until December 2013, when a chance encounter with a local chemist turned me onto the GAPS diet.

Gut and Psychology Syndrome

Dr Natasha McBride, a British neurologist with a postgraduate degree in nutrition, first developed the Gut and Psychology Syndrome (GAPS) diet for her autistic son. Like most autistic children, her son had major bowel problems in addition to the autism. Researchers have since uncovered links between endotoxin-producing intestinal bacteria, “leaky gut” syndrome and other neuropsychological conditions, such as schizophrenia, depression and ADHD.

The basic premise of the diet, which draws from the Weston A Price diet (see The Taboo Against Animal Fats) and the Specific Carbohydrate Diet (SCD), is to suppress the growth of pathogenic bacteria by eliminating the sugar and starches they feeds on, while simultaneously promoting the growth of healthy bacteria by taking probiotics and eating fermented foods.

McBride recommends that all patients begin with a strict elimination diet aimed at controlling the diarrhea. For the first six weeks, all I was allowed to eat was bone broth made from boiling stewing meat or fish heads, along with probiotics, juice from fermented vegetables, water kefir and kombucha. Once the diarrhea stopped, I was allowed to add new foods at six week intervals, starting with egg yolks (raw), then whole eggs (scrambled), then avocado, then nuts soaked in salt water overnight, cooked apple, and finally lentils, navy and lima beans soaked overnight in lemon juice or vinegar solution. Like most patients with C difficile, I have great difficulty digesting fibrous vegetables and fruits. Thus I have also been very gradually adding small amounts of cooked vegetables.

At the end of 18-20 months, I am allowed to cautiously allow starchy foods, starting with new potatoes and eventually sprouted buckwheat. After 24 months, I can cautiously add very small amounts of other grains, such as rice, oatmeal (soaked) and quinoa.

Even after the C difficile resolves, I can never return to a typical Western diet, with its heavy emphasis on carbohydrates, sugar and processed food, owing to demonstrated links with many chronic illnesses, such as cancer, diabetes, arthritis and heart disease (I discuss this in The Taboo Against Animal Fats).

My Total Life Makeover

Given the high stress fast paced lifestyle most of us lead, westerners find it extremely difficult to totally eliminate processed foods, sugar and starch from their diet. For the past six months, I have spent most of my waking hours shopping, cooking and learning to make fermented vegetables, water kefir and almond milk yoghurt (both dairy and soy products are forbidden). The first six weeks were the hardest, due to the copious amounts of fat I had to consume in my bone broth to compensate for the calories I previously derived from sugar, rice and potatoes. McBride is very explicit: patients must eat all the fat off the stewing bones they use to prepare the bone broth.*

After six months on the diet, I feel the sacrifice is definitely worth it. After 20 years of nearly constant diarrhea, pain and insomnia, it’s like a miracle to feel normal again.

Now the only major issue in my life is a social disease called monopoly capitalism.

*I admit to cheating a bit on this requirement by substituting coconut oil (which is allowed on the GAPS diet) for half of the animal fat. I am extremely concerned about the high concentration of industrial toxins found in animal fats and dairy products. Classified as endocrine disruptors, many of these toxins mimic estrogen, which is promotes the development and growth of breast cancer.

photo credit: jamesjoel via photopin cc

The Taboo Against Animal Fat

(The first of two posts about the damaging effect of the western diet on intestinal bacteria and human health.)

As a traditionally trained physician, I watch with horror and dismay as for-profit corporations intrude ever deeper into so-called evidence based medicine. I have written at length about the role of Big Pharma in corrupting good medical practice to promote the sale of prescription pharmaceuticals – and their bottom line (see Menopause: Made in the USA and Drug Companies: Killing Kids for Profit). The role of Food Inc in the dietary recommendations doctors (and government) make to patients and the public at large are even more insidious and damaging.

The current taboo against saturated animal fats is a case in point. For the past thirty years, doctors and government agencies have been lecturing us that diets high in saturated animal fats (found in red meat, whole milk, eggs, butter and lard) cause high cholesterol levels, heart disease and stroke. They have persisted in this three decade campaign against animal fat – despite the total absence of scientific research supporting a link between fat intake and high cholesterol levels – or heart disease and and stroke. In fact, growing evidence suggests just the opposite: diets low in saturated fats and high in sugar and refined carbohydrate promote obesity, type 2 diabetes, high cholesterol levels, high blood pressure, heart disease and stroke.

In other words, government and the medical fraternity have it backwards. Worse still, it appears that their purely theoretical (based on no evidence) phobia against animal fat may be the single most important factor in the current epidemic of obesity and type 2 diabetes.

An Unproven Hypothesis

The current taboo against animal fats is based on a hypothesis first promoted forty years ago when I was in medical school. The theory works like this:  consumption of foods high in cholesterol and saturated fats promotes high levels of blood cholesterol, which lead to calcified plaque formation in arteries, which restrict blood flow to the heart and brain, as well as increasing blood pressure by making blood vessels less elastic.

There’s a credible body of research linking high cholesterol levels to plaque formation and the latter to high blood pressure, heart attack and stroke. However there’s no research whatsoever linking diets high in animal fats and cholesterol to high blood cholesterol levels.

In March, Annals of Internal Medicine published a metanalysis of 72 scientific studies on the effect of different fats on heart disease. The authors conclude there is insufficient research evidence to support guidelines discouraging consumption of saturated animal fats.

The Work of Weston A Price

A growing body of evidence suggests that diets low in saturated fats are, in fact, harmful to human health. Many of these studies were inspired by the work of dentist Weston A. Price in the 1930s. Puzzled that Maori, Australian aboriginals and other indigenous groups experienced no tooth decay prior to adopting a western diet, Price studied their dietary habits. To his surprise, he discovered it wasn’t the direct effect of sugar on tooth enamel that caused cavities. His patients developed tooth decay because diets high in sugar and refined carbohydrates were deficient in basic nutrients essential for human health. When he helped them alter their diets, his patients not only avoided further tooth decay but healed existing cavities.

One of Price’s discoveries was that animal fats* provide essential fat-soluble vitamins (A, D, E and K) that play a vital role in the absorption of other nutrients essential for hormonal and neurological function and protection against chronic diseases, such as cancer and heart disease.

The Role of Intestinal Bacteria

More recent studies have elucidated the mechanism by which diets high in sugar and refined carbohydrate predispose to both high cholesterol levels and obesity. Some of this research is summarized in an April 2013 article in Mother Jones Are Happy But Bacteria Key to Weight Loss?

The article explains how high sugar and refined carbohydrate diets, coupled with massive antibiotic overuse in medicine and factory farming**, promote the growth of gram negative, endotoxin-producing intestinal bacteria. When endotoxin is absorbed into the bloodstream, it sets up a wide ranging inflammatory response that can manifest a variety of effects, including arthritis, eczema, psoriasis and neuropsychological syndromes such as autism, Asperger’s disorder, schizophrenia and ADHD. A number of studies suggest that high cholesterol levels are also an inflammatory response to this endotoxin. Others link endotoxin to inflammatory damage in the brain’s appetite center. An impaired appetite center will cause people and animals to eat indefinitely without ever feeling full.

The Mother Jones article also describes several studies in which obese patients lost weight by simply suppressing endotoxin-producing bacteria – by taking probiotics and eating fermented foods containing beneficial bacteria.

*The contamination of animal fats and dairy products, even when produced organically, with fat-soluble pesticides and other industrial toxins makes choosing “safe” saturated fats somewhat problematic. Classified as endocrine disruptors, many of these toxins mimic estrogen, which promotes the development and growth of breast cancer. For this reason, I prefer coconut oil as my saturated fat of choice.

**Factory farmed animals are routinely fed antibiotics to hasten and maximize growth.

To be continued.

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The Multibillion Dollar Depression Industry

(Thanks to the corporatization of health care, Americans pay double what other countries pay for health care but have much worse health. The recent Obamacare roll-out has heightened public awareness about the role of private insurance companies in sucking billions of health dollars out of the health care system. There is far less scrutiny of the role of Big Pharma in driving up health care costs.

This is the first of several posts on “disease mongering” by pharmaceutic companies  – i.e. the invention of fictitious diseases to market drugs that supposedly treat them.) 

Marketing Serotonin Deficiency

With the release of Prozac back in 1987, the pharmaceutical industry began systematically indoctrinating doctors with the theory that depression is caused by a genetic deficiency in a brain neurotransmitter called serotonin. Big Pharma then spent the next 25 years reaping billions of dollars from marketing high-priced SSRIs to treat this so-called deficiency.

There are several obvious flaws in the theory that depression is a genetic brain disorder. The first is the skyrocketing increase in depression and suicide triggered by the 2008 meltdown. The prevalence of a genetic illness should follow the same predictable growth curve as population. The second is the total absence of so-called “serotonin deficiency” in lower mammals. The third and most obvious is the extremely low response rate to SSRIs and other antidepressants. Only 50% of patients who take them ever achieve full recovery.

The Learned Helplessness Model of Depression

The absence of “serotonin deficiency” in lower animals means that depression has to be artificially created to research prospective antidepressants. Most of this animal research is based on the “learned helplessness” model. In a common experiment, mice are dropped into a large vat of water and the researcher times how long they keep swimming before they give up. After taking a dose of Prozac, they swim longer before giving up.

There is something incredibly sad about the drug companies’ persistence in torturing small animals. If the medical profession is serious about addressing the immense suffering caused by the costly and disabling condition, surely they need to start addressing some of the other known causes – for example, nutritional deficiency, derangements in intestinal bacteria and the total degradation of family and community life.

Depression Caused by Poverty and Malnutrition

Doctors have known for half a century that specific nutritional deficiencies can cause depression. Western countries are particularly known for depression-linked deficiencies in omega 3 and Vitamin D. Cross-cultural research shows that Asian and Scandinavian countries consuming quantities of fish (which contains both omega 3 and Vitamin D) have extremely low rates of depression. The phytonutrients found in fresh fruits and vegetables also seem important in preventing depression, though the evidence is less strong.

Owing to recent skyrocketing food costs, I feel a little silly advising low income patients to eat more oily fish and fresh vegetables. I also feel angry and disgusted about a corporate-driven health policy whereby Medicaid, Medicare and Obamacare happily pay for a Prozac prescription (to help their friends at Big Pharma) but not to subsidize fresh, organically grown food for low income patients with obvious nutritional deficiencies.

Depression Caused by Unhealthy Gut Bacteria

Pioneering gastroenterology research suggests that the microbiome (the resident bacteria in our intestines) also plays a major role in brain function. The overuse of antibiotics, in medicine and factory farming, has killed off normal bowel flora in a large segment of the industrialized world. This, in turn, has led to a near epidemic levels of irritable bowel syndrome and inflammatory bowel disease. Surprisingly both conditions have links to arthritis, obesity, autoimmune diseases, and so-called “brain” diseases, such as depression, anxiety, migraines, and even autism.

Recent studies suggest that treating this type of depression can be as simple as taking probiotics or eating fermented foods, such as yoghurt and sauerkraut. Yet because these treatments aren’t medication-based, they aren’t covered by health insurance, Medicare or Medicaid.

Human Misery, Stress and Social Isolation

Obviously the worsening depression, along with epidemic levels of foreclosures, bankruptcies and evictions, is a far bigger culprit than nutritional deficiencies or gut bacteria in the recent exponential increase in depression and suicide. The best way to trigger depression in higher mammals is through massive, unrelenting environmental stress. Surely the pharmaceutical companies know this, or they wouldn’t be using learned helplessness in their animal research, would they?

It’s also striking that the current economic depression has hit people a lot people harder than the Great Depression of the 1930s. This seems to relate to the overall breakdown of family and community life. Prior to World War II, the family and social networks people belonged to exerted a protective effect during stressful times. Human beings, like other primates, such as apes, monkeys and gorillas, are fundamentally social beings. We are all hard wired to have strong social needs and function very poorly when they go unmet.

Recent neurophysiologic research shows that the human brain produces specific “feel good” neurochemicals (e.g. oxytocin, endorphins, and dopamine) to reward people for social activity. Social isolation appears to produce a deficit in these chemicals.

The Absence of Social Needs Research

Research into non-pharmaceutical treatments for depression is unlikely to occur in the US, where Big Pharma oversees the vast majority of medical research. For obvious reasons, drug companies have no incentive to investigate treatments that don’t involve a product they can sell for profit. It hasn’t helped that Obama has slashed research budgets for National Institutes of Health and National Institutes of Mental Health.

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Intestinal Bacteria and Chronic Illness

(This is the second of 2 posts about a possible link between intestinal bacteria, obesity, and other chronic illnesses.)

The most enlightening article I’ve seen about micrbiota (gut bacteria) research is an April 2013 article from Mother Jones. It explores the possibility that insulin resistance (see previous post) is actually an “inflammatory” process caused by the production of “endotoxin” by unhealthy gut bacteria.

The Major Health Implications of Dysbiosis

Owing to a doubling of obesity rates since 1980, this strikes me as a reasonable hypothesis. The mass marketing of antibiotics by Big Pharma, Food Inc (in livestock feed), and Monsanto (in genetically modified organisms) has led to epidemic levels of dysbiosis (a derangement in gut bacteria) in the industrialized world. In addition to skyrocketing obesity rates, the developed world has also experienced a significant increase in other dysbiosis-related conditions, including cancer, diabetes, and degenerative and autoimmune disease. It would also explain why children born to obese mothers (we acquire gut bacteria from our mothers) are more likely to suffer from asthma, attention deficit disorder, and autism.

The article cites research from the University of Washington showing that foods high in saturated fats and sugar promote the growth of endotoxin-producing inflammatory bacteria. Endotoxin, in turn, causes inflammatory damage to the the hypothalamus, the brain’s appetite center. When this occurs, people lose the ability to feel full and eat to excess.

The Mother Jones article also references studies in which volunteers improved their insulin sensitivity, as well as losing weight, by reducing their level of “inflammatory” bacteria. They accomplished this by consuming diets rich in fermented foods containing healthy, anti-inflammatory bacteria.

Most interesting of all are studies showing that bariatric (weight loss) surgery helps some patients and not others depending on their ability to grow a healthier microbiota (gut bacteria colony) following their procedure.

The Care and Feeding of Intestinal Bacteria

After suffering a sudden onset of so-called “irritable bowel” syndrome 20 years ago, I have a strong personal interest in dysbiosis. The Sydney GI specialist I consulted says the only effective treatment for most IBS sufferers is to re-establish a healthy microbiota.

The end of the article offers a number of suggestions how to accomplish this. The bottom line is to consume a diet rich in 1) fermented foods with live bacterial cultures and 2) complex carbohydrate and fiber-rich foods these organisms thrive on. Studies show that treatment with whole foods is always preferable to taking probiotics. Fermented foods contain literally thousands of strains of bacteria that work collaboratively with one another. Probiotic capsules, in contrast, contain a dozen strains at most and are likely to be destroyed by stomach acid

Examples of helpful fermented foods include sauerkraut (only if it’s made via fermentation), miso (fermented soybean paste), kefir (a fermented drink), and some yoghurts. To ensure the bacterial cultures are live, it’s best to ferment these foods yourself or get them from a reliable health food store. It’s also essential to check the label to make sure they aren’t pasteurized (pasteurization kills bacteria).

The foods these bacteria like to munch on include onions, garlic, potatoes, bananas, yams, apples, oranges, whole grains, Jerusalem artichokes, legumes and cruciferous vegetables (cabbage, broccoli, and cauliflower).

Looking after the new bacteria in my intestine is almost like having a new pet to care for. I can already tell from my symptoms which foods they really like: yam, cooked apples, and avocado. Luckily I’m pretty keen on them myself.

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