Nov 30, 2017 · 1h 42m · knowledge-project
#25 Gary Taubes: Is Sugar Slowly Killing Us
0:00 / 0:00
gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
In this episode of The Knowledge Project, investigative science journalist Gary Taubes joins Shane Parrish to challenge conventional nutrition dogma, presenting historical and biochemical evidence that sugar and refined carbohydrates—rather than caloric excess—drive the global obesity and diabetes epidemics. Taubes advocates for a paradigm shift toward rigorous experimental science and low-carbohydrate dietary practices to effectively reverse metabolic disease.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Shane holds 4.5% of the talking time here. How this is scored →
Shane as informed peer 2.8 Guest teaching 6.6 Guest disagreement 4.1 Shane pushing back 1.4
speaking balance: gold is Shane, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 34:05 Tearing apart the calories in, calories out paradigm
Gary aggressively dismisses the energy balance model as incomprehensibly naive and mocks a New Yorker review by Jerome Groopman comparing caloric explanations to saying wealth is caused by accumulating dollars.
Hardest push from Shane ▶ 1:24:28 Stopping the guest to challenge alcohol guidelinesShane halts Gary's dietary recommendations to demand immediate clarification after Gary lists red wine alongside water as an acceptable daily beverage.
Biggest teaching moment ▶ 39:00 Educating on historical endocrinology versus modern eating disorder modelsGary gives a detailed historical overview showing how post-WWII American researchers abandoned sophisticated German endocrine research to mistakenly reframe obesity as behavioral gluttony and sloth.
Shane holds their own ▶ 1:30:08 Identifying the confounding factor of gluten-free dietsShane interjects with domain expertise, observing that eliminating gluten naturally eliminates the vast majority of ultra-processed packaged foods.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Shane as informed peer | Guest teaching | Guest disagreement | Shane pushing back | Why |
|---|---|---|---|---|---|---|
| Gary Taubes's Personal Daily Diet and Food Philosophy | 2 | 7 | 4 | 1 | Shane asks why nutrition science is in such a poor state, prompting Gary to deliver an extensive historical lecture contrasting the rigor of pre-WWII physics with the compromised standards of public health nutrition. | |
| Genetics Versus Western Lifestyle in the Global Disease Epidemic | 2 | 6 | 3 | 1 | Shane asks about the role of genetics in obesity and diabetes, which Gary acknowledges before demonstrating how global population transitions to Western diets produce identical epidemics irrespective of genetic ancestry. | |
| Critiquing Regional Diets and Refocusing on Epidemic Root Causes | 2 | 6 | 5 | 1 | When Shane asks about regional diets like Mediterranean and French diets, Gary dismisses the question as a distraction from understanding the 700% surge in diabetes prevalence since the 1950s. | |
| The Historical Timeline of Sugar Consumption and Disease Rise | 2 | 7 | 4 | 1 | Shane invites Gary to explain the primary vector of disease, leading to a comprehensive historical narrative tracking 19th-century sugar consumption, commercialization, and the mid-century cereal industry transformation. | |
| The Biochemical Impact of Fructose on the Liver and Insulin Resistance | 4 | 7 | 4 | 2 | Shane clarifies concepts like the glycemic index and type 1 versus type 2 diabetes. Gary walks through how fructose metabolism uniquely burdens the liver to trigger insulin resistance and metabolic syndrome. | |
| The Addictive Nature of Sugar and Brain Reward Chemistry | 2 | 6 | 3 | 1 | Shane asks why humans are so drawn to sugar, and Gary explains the neurobiology of the nucleus accumbens, dopamine stimulation, and rodent addiction trials comparing sugar to hard drugs. | |
| Deconstructing the Flaws of the Calories In, Calories Out Model | 3 | 8 | 7 | 2 | Shane raises the common calories in, calories out argument. Gary vehemently attacks this paradigm as incomprehensibly naive, mocking prominent critics like Jerome Groopman and recounting how WWII disrupted German endocrine science. | |
| Endocrine Regulation of Fat Storage and Metabolic Flexibility | 2 | 7 | 4 | 1 | Gary outlines the mechanism of insulin as the primary regulator of adiposity, detailing metabolic flexibility and criticizing contemporary medical textbooks for ignoring hormonal fat regulation. | |
| The Origins of the Fiber Craze and Dietary Dogmas | 3 | 8 | 5 | 1 | Shane asks about fiber's role, prompting Gary to trace the historical origins of the fiber hypothesis from Dennis Burkitt and Peter Cleave to modern gut microbiome trends. | |
| Challenges in Nutrition Trials and Lessons from NuSI | 3 | 6 | 4 | 1 | Shane asks what has surprised Gary or changed his mind, leading to an honest debrief of the Nutrition Science Initiative (NuSI) and the systemic difficulty of conducting reliable human clinical trials. | |
| The Limits of Nutritional Epidemiology and the Case for Big Science | 4 | 7 | 5 | 2 | Shane asks how nutritional epidemiology's reliance on correlation can be fixed. Gary recounts drafting a BMJ piece against Harvard epidemiologists and argues for Big Science funding comparable to CERN or fusion research. | |
| Navigating Public Criticism and Maintaining Intellectual Honesty | 3 | 6 | 5 | 2 | Shane asks how Gary maintains intellectual honesty amid hostile criticism. Gary details public attacks, internet detractors, and an email confrontation with the head of nutrition at Tufts. | |
| Clinical Efficacy of Low-Carb Diets and Diabetes Reversal | 3 | 6 | 3 | 1 | Gary discusses clinical real-world evidence for reversing type 2 diabetes through ketogenic diets, citing practitioners and clinical results from startups like Virta Health. | |
| Analyzing the Sugar Industry Strategy Versus Big Tobacco | 3 | 6 | 4 | 1 | Shane asks if the sugar industry will face tobacco-style vilification. Gary compares their strategies, explaining how sugar purveyors leveraged mainstream calories-in-calories-out dogmas rather than outright inventing new science. | |
| Actionable Health Advice: Cutting Sugars, Carbs, and Intermittent Fasting | 4 | 7 | 3 | 3 | Shane asks for actionable advice and steps in to clarify Gary's comments on wine, then notes how gluten elimination inherently cuts out processed foods. Gary reviews carbohydrate restriction and intermittent fasting. | |
| Upcoming Book Projects and the Core Philosophy of Science | 3 | 6 | 2 | 1 | Shane asks about future projects, and Gary shares his vision for a book on experimental scientific methodology grounded in Feynman's principle of avoiding self-deception. |
Statements from this episode (24)
Taubes: Butter and Animal Fats Function as Health Foods Over Carbohydrates
“Easiest way to think about it is, I don't eat grains and starches and sugars anymore, because I think they make me fat and unhealthy, and I replace them for the most part with You know, fat animal products, so not good for the animals, but I think it's good fo…”
Nutrition Research Lowered Its Standards Due to the Difficulty of Human Trials
“Very difficult, if not impossible, to do right, and so what the nutrition and public health research communities did is they just lowered their standards for what they would consider reliable knowledge, and this just became sort of, ah, inculcated throughout t…”
The Medical Community Has No Idea How to Solve the Obesity Epidemic
“And, you know, we end up in a situation today where we have, you know, these massive, unprecedented epidemics of obesity and diabetes and related diseases, and the medical public health community has no idea, almost literally no idea what to do about it, and e…”
Diverse Global Populations Develop Obesity When Adopting Western Diets
“Inuits near the Arctic Circle or Native Americans or First Nations people or you know, African populations or South Pacific Islanders and Middle Eastern populations or Southeast Asians, they all
Experience obesity and diabetes epidemics when their environment …”
US Diabetes Prevalence Has Surged 700% Since the Late 1950s
“In the U.S., and according to the Centers for Disease Control in the U.S., since the late 19 fifties, diabetes prevalence has increased 700%.”
Former WHO Chief Admitted Odds of Stopping Chronic Disease Are Near Zero
“The Director General of the UN, a woman named Margaret Chan, a year ago referred to them as slow motion disasters, and she predicted, this was fascinating, this was at a keynote address of the National Academies of Medicine in Washington, and she gave a number…”
Hospital Records Show US Diabetes Rates Were Almost Nonexistent Before 1850
“And you find out, for instance, in the U.S. That diabetes rates, ah, in, were virtually nonexistent, even though it was a very, a relatively easy disease to diagnose You saw very little sign of it pre-eighteen 50, and even, for the most part, pre-eighteen seve…”
US Per Capita Sugar Consumption Grew Twenty-Fold During the 19th Century
“Sugar over the course of the 19th century went from being a sort of expensive luxury in the beginning of the 19th century when Americans, for instance, probably consumed less than in the neighborhood of five pounds per person per year. So that's the equivalent…”
Insulin Resistance Drives Major Chronic Diseases and Originates in Liver Fat
“Whatever causes insulin resistance causes obesity, diabetes, high blood pressure, heart disease, stroke, cancer, Alzheimer's, virtually every chronic disease has a link to insulin resistance, and the best research on what causes insulin resistance suggests tha…”
High Fructose Intake Converts Directly to Liver Fat, Driving Insulin Resistance
“By the 19 sixties, the biochemistry had pretty clearly worked out that when you dump fructose on the liver, it converts it to fat. And on the other side, you'd have these insulin resistance researchers saying, hey, insulin resistance seems to be caused by the …”
Addicted Lab Rats Will Voluntarily Switch From Cocaine to Sugar
“And in animals at least, so rats and mice, we could do these experiments, you could demonstrate that they are, they will be more addicted to sugar than to cocaine or heroin, so these experiments Experiments, some of them were done in France, are sort of perver…”
Sugar Historically Entered Europe as a Medicinal Painkiller, Not a Food
“Sugar's always been considered a painkiller, and actually entered Europe in the 1314 century, or 12th post-Crusades, more as a medicinal, and perceived as having medicinal uses, than as a food or a spice.”
Explaining Obesity With Calories Is Like Explaining Wealth With Dollars
“This idea that excess calories is what makes us fat, Is the, and I, I'm embarrassed that I ever, never thought of this before. It's logically equivalent to saying, you know, excess money makes us rich. Or I don't know, scoring excess points in a football game …”
Science Framed Obesity Around Calories Because Calorimeters Were the Only Available Tool
“Nutrition science from the 18 sixties to the 19 twenties was completely dominated by, as all sciences are, by what they could measure, the technologies available to make observations, and all they had were they had devices called calorimeters, Where they can m…”
Pre-WWII German and Austrian Scientists Concluded Obesity Is a Hormonal Disorder
“The German and Austrian clinicians, and Germany and Austria was, you know, these people were doing far and away the best medical science in the world at the time, and they pioneered all the fields of science relevant to Obesity, so metabolism, genetics endocri…”
Science Proved Insulin Regulates Fat Storage by the Early 1960s
“By the early 19 sixties, it was clear that insulin, the hormone insulin, was the primary regulator of fat accumulation in the human body.”
Leading Medical Textbook Harrison's Ignores Hormonal Mechanisms of Obesity
“The medical textbook, the most seminal textbook, and the Harrison's Principles of Medicine, I think it's called, and the chapter on obesity is written by the, you know, a very, very smart researcher named Jeff Flyer, who just, until recently, was dean of Harva…”
Chronic Metabolic Disease Stems From Refined Foods, Not a Lack of Fiber
“You add fiber, you can slow down the digestion of the carbohydrates. You can even slow down the digestion of the sugars. So that would probably help, but you've paid attention to the wrong thing. It's not the absence of the fiber. It's the presence of those ot…”
Taubes Admits His Own Nutrition Science Initiative Did More Harm Than Good
“And if anything, at this point in time, we have done more harm than good.”
Nutrition Science Is Not a Functioning Scientific Discipline
“I don't believe nutrition science is a functioning science. That it lacks many of the characteristics that a functioning science has to have, particularly the sort of critical, rigorous back and forth between scientists where they're attacking each other's ide…”
Obesity and Diabetes Cost the US Healthcare System $1 Billion Daily
“Obesity and diabetes cost, the healthcare system in the U.S., the estimate is a billion dollars in direct medical costs a day.”
One Day of US Metabolic Healthcare Costs Could Fund Definitive Nutrition Studies
“If we spend one day's worth of medical costs, I think we could probably answer every one of these studies.”
Type 2 Diabetes Is Reversible Without Drugs via Low-Carb Diets
“Even type two diabetes was irreversible. Once on insulin, always on insulin, basically, until you get taken down by the side effects. And now people are showing that on these diets, and maybe others as well, but they're showing that this is a reversible diseas…”
The Sugar Industry Amplified Existing Dogma Rather Than Inventing Doubt
“Unlike the tobacco industry, so the tobacco industry's job was to somehow try to convince the world that the research community was wrong, and to sow confusion about what the research community was saying. What the sugar industry had to do was remind the resea…”