Plant-Based Diets: Pluses and Minuses

Eating You Alive: One Bite at a Time

Directed by Paul David Kennamer Jr (2018)

Film Review

In essence, this documentary is a series of glowing testimonials from patients who reversed life threatening illnesses by switching to an organic whole food plant-based (ie vegan) diet. Although the film is disappointingly short on research evidence, the list of illnesses overcome with this diet is extremely impressive: end stage pancreatic cancer, lupus, stage 4 metastatic ovarian cancer, stage 4 renal cancer, severe heart disease, dementia, rheumatoid arthritis, breast cancer, cervical cancer, uterine cancer, malignant hypertension, type II diabetes, and morbid obesity.

Although I have no reason to doubt the sincerity of any of the patients (who include Penn the magician and the actor Samuel L Jackson), I had reservations about some of the film’s basic premises. Given its heavy emphasis on obesity and type II diabetes, I was surprised it made no mention of insulin resistance or dysfunctional gut bacteria as triggers for obesity. In my experience, patients with insulin resistance are far more likely to lose weight on a high fat ketogenic diet. The latter is also extremely helpful for treatment-resistant seizures.

Unfortunately some of the doctors advocating for plant-based diets also make statements that aren’t strictly accurate. For example, decades of research has totally debunked the myth that consuming large amounts of cholesterol causes high blood cholesterol levels. It is now established that cholesterol is part of the body’s normal defense against inflammation, that the main cause of high cholesterol in otherwise “healthy” people is inflammation caused by excess dietary sugar. See How Sugar Really Affects Your Cholesterol

I was also concerned about the way featured doctors trashed olive and coconut oil as major culprits in cardiovascular disease and cancer. Numerous studies suggest otherwise.

The statement one of the doctors makes about no prior human culture relying on meat-based diets (as most of the industrialized world does at present) is simply untrue. Both the Massai people of Africa and the Inuit people of the Arctic traditionally ate 100% meat-based diets. Likewise all hunter gatherer societies relied on occasional meat in addition to a routine diet of fruits and vegetables.

I was also concerned that the doctors featured saw no need to caution viewers about limitations of a 100% plant-based diet in terms of specific key nutrients: Vitamin B12, zinc, iron (in menstruating and pregnant women), Vitamin D and omega 3. Most of the doctors I know recommend their vegan patients take supplements providing these nutrients. Pregnant women following a vegan diet also need to be monitored closely to ensure their protein intake is adequate.

The full film can be viewed free at https://tubitv.com/movies/475193/eating-you-alive

 

 

The Role of Western Medicine in the Epidemic of Obesity, Diabetes and Heart Disease

Carb Loaded: A Culture Dying to Eat

Directed by Lathe Poland (2014)

Film Review

Carb Loaded follows the personal journey of a 40 something male (one of the filmmakers) who suddenly develops type II diabetes, despite being physically fit and follow a “heart healthy” diet. What he discovers is that the low fat, high carbohydrate promoted for fifty years by Food Inc, the USDA, and the American Dietetic Association is responsible for a global epidemic of diabetes, obesity, heart disease and most likely Alzheimer’s Disease.

The Food Pyramid was an Experiment and Americans the Guinea Pigs

The documentary begins by tracing the history of the “food pyramid,” which the FDA and corporate cronies foisted on the unsuspecting American public in 1977 – without a single clinical trial supporting its safety and effectiveness. With the adoption of the “food pyramid,” doctors and dietitians induced hundreds of millions of patients to drastically reduce their intake of protein and fat and to increase foods previously associated with weight gain (bread, pasta, potatoes, high carb snacks, etc). in other words it was a vast experiment and Americans – and citizens of other industrialized nations – were the guinea pigs.

Statistically the prevalence of diabetes, obesity heart disease and Alzheimer’s began to take off in the late seventies, the widespread adoption of the low fat, high carbohydrate diet. Over the last decade the researchers have identified the mechanisms by which a high carbohydrate diet causes these conditions.

A high carb diet causes diabetes by triggering excessive insulin production, which over time leads to insulin resistance, a physiological condition in which cells fail to respond to insulin, leading to higher blood sugar levels.

It causes obesity by reducing brain sensitivity to leptin, a hormone produced by fat cells that notifies the brain when we’re full.

It causes heart disease mainly by triggering an inflammatory response in our blood vessels that increases cholesterol production. Contrary to popular belief (driven by relentless corporate marketing), most cholesterol is produced by the body in response to inflammation and is totally unrelated to diet.

Alzheimer’s: Type III Diabetes

Most ominous of all, high carbohydrate diets can cause the accumulation of “glycated”* proteins in the brain. These are linked to the development of Alzheimer’s Disease, which doctors and researchers have begun referring to as Type III diabetes.

The film goes on to explore numerous lifestyle changes which have led many residents of the industrialized world to cook less and rely more on cheap, carbohydrate-rich fast foods. It also explodes the myth that fast food is cheap, with a recent study that the average American spends $3,000 a year on fast food and $8,000 on doctors visits for medical problems caused by fast foods.

Potential Solutions

The filmmakers finish by reviewing a range of possible solutions at the government, community and individual level. High on the list of policy changes are an end to the US corn subsidy (responsible for the ubiquitous presence of damaging high fructose corn syrup in most processed foods) and a tax on sugary beverages similar to those enacted by Mexico, Denmark, Hungary and France.

On a community level, they talk about what activists can do to eradicate food deserts and increase the availability of fresh, unprocessed food.

On a personal level, they explore the importance of understanding the addictive effect of sugar and specific behavioral changes people can make to gradually wean themselves and, most importantly, their children off sugar and other refined carbohydrates.

 

The Sugar Conspiracy

The Secrets of Sugar

By Fifth Estate (2014)

Film Review

The Secrets of Sugar is a Canadian documentary about the conspiracy by the sugar industry and processed food companies to conceal the damaging effects of sugar on human health. For decades, the medical establishment has led us to believe that our intake of animal fat is responsible for soaring rates of obesity, diabetes and heart disease. It turns out the real culprit all along is sugar (see The Big Fat Surprise).

Investigators have uncovered industry documents going back to the 1950s linking excess sugar intake with health problems. In 1972, researcher John Yudkin published the book Pure, White and Deadly about research linking sugar to heart disease. The response by the food industry was a vicious campaign to portray Yudkin as an incompetent quack. This, in turn, led to a thirty-year shutdown of institutional funding for research into sugar’s health effects.

For me, the film’s most shocking revelation was the immense amount of sugar hidden in so- called “healthy” processed foods, such as yoghurt, oatmeal, soup and Healthy Choice frozen dinners. In one segment, a former industry scientist nicknamed “Dr Bliss” explains the importance of the “bliss point,” the quantity of added sugar that makes you crave a particular product.

A close look at product labels suggests they are designed to confuse consumers about the actual sugar content of foods. Meanwhile like the tobacco industry, Food Inc spends billions of dollars lobbying against government (and UN) recommendations for a maximum daily sugar intake and clearer food labeling laws.

For years, doctors and dieticians have been telling us that sugar is bad because of all the “empty” calories. New research indicates sugar acts as a poison, inflicting direct damage on the liver and brain via its impact on insulin production. In addition to studies implicating high sugar intake in obesity, diabetes, heart disease and cancer, others point to its role in the development of Alzheimer’s Disease and polycystic ovarian disease.

Industry scientists interviewed in the film manifest the same “blame the victim” mentality as the tobacco industry. They maintain the responsibility lies with the consumer to choose whether to eat sugar – or to smoke. The filmmakers counter that healthy choices are impossible without good information.

The film follows an obese couple over three weeks, who achieve significant weight loss, as well as reductions in cholesterol and triglycerides, simply by eliminating all processed foods from their diet.

Also posted in Veterans Today

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.

photo credit: {Guerrilla Futures | Jason Tester} via photopin cc