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Fork U with Dr. Terry Simpson

Fork U with Dr. Terry Simpson

Learn more about what you put in your mouth.

Terry Simpson

130 episodesEN

Show overview

Fork U with Dr. Terry Simpson has been publishing since 2021, and across the 5 years since has built a catalogue of 130 episodes, alongside 2 trailers or bonus episodes. That works out to roughly 25 hours of audio in total. Releases follow a fortnightly cadence.

Episodes typically run ten to twenty minutes — most land between 8 min and 13 min — though episode length varies meaningfully from one episode to the next. None of the episodes are flagged explicit by the publisher. It is catalogued as a EN-language Health & Fitness show.

The show is actively publishing — the most recent episode landed earlier today, with 19 episodes already out so far this year. The busiest year was 2025, with 48 episodes published. Published by Terry Simpson.

Episodes
130
Running
2021–2026 · 5y
Median length
11 min
Cadence
Fortnightly

From the publisher

Fork U(niversity) Not everything you put in your mouth is good for you. There’s a lot of medical information thrown around out there. How are you to know what information you can trust, and what’s just plain old quackery? You can’t rely on your own “google fu”. You can’t count on quality medical advice from Facebook. You need a doctor in your corner. On each episode of Your Doctor’s Orders, Dr. Terry Simpson will cut through the clutter and noise that always seems to follow the latest medical news. He has the unique perspective of a surgeon who has spent years doing molecular virology research and as a skeptic with academic credentials. He’ll help you develop the critical thinking skills so you can recognize evidence-based medicine, busting myths along the way. The most common medical myths are often disguised as seemingly harmless “food as medicine”. By offering their own brand of medicine via foods, These hucksters are trying to practice medicine without a license. And though they’ll claim “nutrition is not taught in medical schools”, it turns out that’s a myth too. In fact, there’s an entire medical subspecialty called Culinary Medicine, and Dr. Simpson is certified as a Culinary Medicine Specialist. Where today's nutritional advice is the realm of hucksters, Dr. Simpson is taking it back to the realm of science.

Latest Episodes

View all 130 episodes

Why Food Became Engineered to Defeat You

May 14, 202612 min

What I Eat on a GLP-1 And Why It Changes

May 7, 202611 min

GLP-1 The First Month: Tips for the new user

Apr 30, 202613 min

Being a Foodie on a GLP-1

Apr 24, 20269 min

The Peptide Bazaar: Real Medicine vs. Vials from the Internet

Apr 16, 202610 min

Ep 122Fat Shaming and GLP-1 - It's Biology

The Chorus of “Just Eat Less”Spend a few minutes on social media, and you will hear it. On Bill Maher's podcast the other day, I heard it. Two people who know less about GLP-1 drugs than almost anyone, opining about how GLP-1s are horrific.Bill Maher says, “Just eat less.”Jillian Michaels warns that GLP-1 medications are dangerous. Did she even graduate from college?Meanwhile, a rotating cast of gym bros, coaches, and influencers insists that anyone using these medications is taking the easy way out.At first glance, these seem like different voices. A comedian, a fitness personality, a group of online trainers.However, they are all saying the same thing.If you are overweight, this is your fault.If you need help, you are weak.If you use medication, you are cheating.That message travels well. It is simple. It fits into a tweet. It sounds like common sense. Science shows us that fat shaming doesn't work (reference).It is also wrong.Who Is Doing the Shaming—and WhyThe fitness industry has something to lose here, and that part is easy to understand. Entire businesses are built on the idea that weight loss is a matter of discipline. Follow the plan, buy the program, track the macros, and success will follow. If it doesn’t, the explanation is built in.You didn’t try hard enough.However, the criticism does not stop there.When someone like Bill Maher reduces obesity to “just eat less,” it is not about selling a diet plan. Instead, it reflects something else entirely. A kind of cultural impatience with complexity. A belief that if a problem can be described simply, it must also be solved simply.And when that belief meets a condition like obesity, the result is dismissal.If I don’t struggle with this, then it must not be real.If you do struggle, then you must be doing something wrong.That is not analysis.That is a failure of imagination.The Problem with Simple AnswersMedicine has a long history of being wrong in simple ways.We once believed ulcers were caused by stress alone. Then came Helicobacter pylori and antibiotic treatment. We once thought hypertension was simply a matter of salt intake and personality. Then we developed therapies that addressed the underlying physiology.Obesity has followed a similar path, except we have been slower to let go of the old explanation.“Eat less, move more” is not incorrect.It is incomplete.Because it ignores the system that determines how much you want to eat, how often you think about food, and how your body responds when you try to lose weight.The Part I Didn’t AdmitFor years, I saw the damage this thinking caused.I ran support groups for patients struggling with weight. I watched them come in carrying not just pounds, but shame. They believed they were weak, that they lacked discipline, that something about them was broken.We worked to change that.We talked about biology. About appetite regulation. About how the body defends weight. We tried to replace blame with understanding.And yet, I quietly held myself to a different standard.I didn’t blame my patients.I blamed myself.The Surgeon Who Thought He Could Outwork BiologyIf anyone should be able to power through something, it is a surgeon. That is the job. Endure long hours. Stay focused. Push through fatigue. Delay gratification.So I assumed I could do the same with weight.I tried diets. I cleaned things up. I ate vegetables, cut back on certain foods, and experimented with structure. And like many people, I saw results.At first.Weight loss is not the mystery.Weight maintenance is.Because over time, the same thing happened again and again. The body adapted. Hunger increased. Energy dipped. The system pushed back.And eventually, the weight returned.What the Data Shows (and Why It Matters)When you look beyond personal stories and examine long-term studies, the pattern becomes clear.In the Diabetes Prevention Program, participants lost weight early, then gradually regained some of it. In the Look AHEAD trial, an intensive lifestyle intervention produced initial success, but the gap narrowed over time.Observational data suggest that only a small percentage of people—often cited around 3 to 5 percent—maintain significant weight loss at five years.That number should change the conversation.Because it tells us this is not a widespread failure of discipline.It is a predictable outcome of a biological system.The Loop We Keep IgnoringWeight gain does not happen in isolation. It is part of a loop.Sleep worsens, which increases appetite. Movement becomes uncomfortable, so activity declines. Food becomes more rewarding, not less, because it offers relief.Then intake increases.Then the cycle repeats.And yet, into that loop, we continue to insert the same advice.Try harder.What Finally ChangedFor years, I thought I just needed to try harder myself.I was wrong.Today, I am down fifty pounds.Not because I discovered a better diet, but because something changed in the system itself.I started a GLP-1–based medication.The effect was immediate in w

Apr 9, 20267 min

Ep 121Menopause: Estrogen Effects Satiety

Menopause, Hunger, and the Brain: Why It Feels DifferentMenopause changes more than temperature control. It reshapes how the brain handles hunger, fullness, and the quiet signals that guide eating. As a result, many women notice something unsettling. The same meals no longer satisfy. Hunger arrives sooner. Food feels louder.For years, we blamed metabolism. We told women their bodies were simply slowing down. While that explanation sounds scientific, it misses the most important part of the story.The brain has changed.A Pattern You Can’t IgnoreDuring my years performing weight loss surgery, about 80 percent of my patients were women. Over time, one pattern became impossible to overlook. When menopause or even perimenopause began, weight gain often followed.Some women had struggled with weight for years. Others had never given it much thought. Yet both groups described the same shift. They weren’t necessarily eating more. Instead, they felt hungrier, less satisfied, and more aware of food throughout the day.Meanwhile, the advice they received rarely evolved. Eat less. Move more. Try harder.However, that advice assumes the system regulating hunger still works the same way. In menopause, it doesn’t.Estrogen and the Appetite Control CenterTo understand what’s happening, we need to look at the hypothalamus. This small but powerful region of the brain regulates appetite, energy balance, and hormonal signaling. Under normal conditions, estrogen helps keep this system stable.Specifically, estrogen supports satiety signals and keeps hunger signals in check. In simple terms, it helps your brain recognize when you’ve had enough.As estrogen declines, that balance shifts. Hunger signals grow stronger. Fullness signals become less reliable. Consequently, the internal experience of eating begins to change.This shift explains why women often say, “I feel different around food,” even before their diet changes.Why Hunger Changes FirstInterestingly, appetite changes often appear before measurable increases in calorie intake. Women report thinking about food more often, feeling less satisfied after meals, and noticing hunger earlier in the day.At first glance, nothing looks different from the outside. Yet internally, the system has already shifted.Because of that, traditional advice falls short. Telling someone to eat less without addressing the change in signaling is like adjusting the thermostat while ignoring the wiring.More Than MetabolismAlthough metabolism does change with age, it does not fully explain the experience of menopause-related hunger. A slower metabolic rate might affect how calories are used, but it doesn’t explain why appetite feels louder or less controlled.Instead, the better explanation lies in the brain. The hypothalamus responds differently when estrogen levels fall. As a result, the signals that guide eating become less precise.In other words, this isn’t just about calories in and calories out. It’s about how the body decides when to eat—and when to stop.The Part We Should Have Addressed SoonerFor decades, menopause care focused on symptoms like hot flashes and bone health. Meanwhile, changes in appetite and weight were often attributed to lifestyle or willpower.Unfortunately, that approach overlooked a key fact. Estrogen plays a direct role in appetite regulation.Because of that, many women were told to push harder when their biology had already shifted. That message wasn’t just incomplete—it was unfair.Estrogen Replacement: A Broader RoleWhen clinicians discuss estrogen replacement, they often focus on symptom relief. However, estrogen also affects brain signaling related to hunger and satiety.In the right patient, hormone therapy may help restore some of that balance. It can improve how the brain responds to fullness and reduce the intensity of hunger signals.Importantly, hormone therapy does not inherently cause weight gain. That belief has persisted longer than the evidence supports.Still, therapy isn’t for everyone. Each patient requires an individualized discussion that considers risks, benefits, and goals.A New Layer: GLP-1 and Appetite ControlMore recently, GLP-1 receptor agonists have added another dimension to this conversation. These medications act on the same appetite centers in the brain, strengthening satiety and quieting hunger.Interestingly, estrogen appears to enhance the effectiveness of GLP-1 signaling. Therefore, menopause may not only reduce estrogen levels—it may also decrease the brain’s responsiveness to satiety cues.This interaction helps explain why some women experience such a dramatic shift in appetite during midlife.What Actually HelpsOnce you understand the biology, the approach changes.Rather than focusing solely on restriction, the goal becomes supporting satiety. Meals should include enough protein, fiber, and volume to sustain fullness. Additionally, sleep deserves attention, as poor sleep amplifies hunger signals. Medication reviews also matter, since some drugs can

Apr 2, 20266 min

Ep 120Henry VIII, the Brain, and the Obesity

The Madness of King Henry VIII—and What We Got Wrong About ObesityThe King We ForgotThere is a moment in history that most of us think we understand. King Henry VIII—large, immobile, temperamental—has become almost a caricature of excess. We picture a man who simply ate too much, moved too little, and paid the price. It is a tidy story. Unfortunately, it is also likely the wrong one.Before the 1530s, Henry was something very different. He was athletic, charismatic, and energetic. He hunted, he jousted, he played sports, and he carried himself like the Renaissance ideal—educated, capable, and physically impressive. His armor, still preserved today, tells that story clearly. Narrow waist. Broad chest. Built for motion.The Fall That Changed EverythingThen everything changes.In January of 1536, Henry was thrown from his horse during a jousting match. The horse fell on him. He was reportedly unconscious for hours. Not minutes—hours. Even by modern standards, that is a significant traumatic brain injury.Soon after, in May of that same year, Anne Boleyn was arrested and executed. She was accused not only of adultery but also of witchcraft. That detail matters. Prior to this period, Henry was not known for superstition. He was a rational thinker. Yet suddenly, accusations of witchcraft become part of the story. It is tempting to say this was political theater. It may have been. Still, the timing is difficult to ignore.Meanwhile, his body begins to change.The Story We Told OurselvesAt first, historians explained this in simple terms. He ate more. He exercised less. Calories in, calories out. That explanation sounds neat. It fits what we like to believe. Even so, the math does not hold up.To gain over 200 pounds, you need a massive and sustained excess of calories. A reduction in physical activity alone does not explain that. We measure activity in METS—metabolic equivalents—and even a dramatic drop in activity would not account for that level of weight gain. In other words, you cannot outrun the math.Yet every January, gyms fill with people who are told exactly that. Move more. Try harder. Burn it off. By February, most of those gyms are empty again. If exercise alone solved obesity, we would not still have the problem.The Organ in ChargeSo what did we miss?The answer sits deep in the brain, in a small but powerful structure called the hypothalamus. It regulates hunger, satiety, hormones, and stress. When it works, eating feels normal. You get hungry, you eat, you stop. No drama. No constant thinking.However, when the hypothalamus is disrupted—by injury, disease, or chronic metabolic stress—that quiet system becomes loud. Hunger no longer behaves like a signal. It becomes a drive.This is not theory. Modern medicine has a name for it: acquired hypothalamic obesity. After traumatic brain injury, some patients develop rapid weight gain, persistent hunger, and changes in impulse control. Studies show that nearly half of patients with significant brain injury gain weight over time. The strongest predictor is not inactivity. It is hyperphagia—an abnormal increase in appetite.In simpler terms, the problem is not how much people move. It is what their brain is telling them to do.What Patients Taught MeThat pattern feels familiar if you have ever sat with patients. I have. Years ago, working with former NFL players, we noticed something striking. The players who struggled most with weight often had long histories of concussions. Not all of them gained weight. Yet those who did described the same experience—something they had never felt before.Food noise.Not hunger. Noise. A constant suggestion that does not go away.At first, I understood that as a physician. Later, I understood it as a person.When the World Went QuietAbout twelve hours after my first injection of Zepbound, something changed. The world became quiet. For the first time, I realized how much of my thinking had been shaped by that background noise. It did not disappear dramatically. It simply stopped.Since then, I have lost fifty pounds. More interesting than the weight loss is what happens between doses. As the medication wears off, the noise returns—subtly at first. A thought here. A reminder there. Even my stress levels rise slightly, something I can see on my WHOOP device. Then, a few hours after the next injection, it quiets again.That experience changes how you see patients. It changes how you see history.Looking Back at HenryBecause now, when we look back at Henry, we are not just looking at excess. We are looking at a possible disruption of the system that regulates behavior itself.There are hints of this even in his own time. A French ambassador noted that Henry’s chronic leg pain troubled him often and that he compensated by eating and drinking more. Later reconstructions suggest large meals, heavy in meat, along with substantial alcohol intake. Those numbers are estimates, not precise measurements. Even so, the pattern is clear.Something was driving th

Mar 26, 202611 min

Ep 119The Carnivore Priesthood

When Beef Becomes Belief: The Carnivore PriesthoodNutrition debates rarely begin with money. Yet money almost always explains how they spread.That fact explains much of the modern carnivore movement.At first glance, the carnivore diet appears to be a radical nutritional idea: eat beef, organs, and animal fat while avoiding vegetables, grains, legumes, and most fruits. Advocates often present the idea as a return to ancestral eating. According to the story, prehistoric humans thrived on meat, and modern illness appeared only after plants and processed foods entered the menu.However, once you look past the rhetoric, another pattern appears. The carnivore movement did not grow out of decades of clinical research. Instead, it grew out of a very modern ecosystem: social media, podcasts, influencer culture, and supplement companies.And once that ecosystem forms, the incentives become clear.First, someone declares that conventional nutrition science has misled the public. Next, they present a dramatically simple solution. Afterward, they build a community around that solution. Eventually, products appear—supplements, coaching programs, special meat boxes, laboratory panels, and branded lifestyle advice.In other words, the diet becomes the marketing engine.And beef becomes the sacrament.Why Simplicity SellsExtreme diets succeed for a reason. Complexity frustrates people, while simplicity reassures them.“Eat a balanced diet rich in vegetables, whole grains, legumes, fish, and moderate meat” may represent excellent advice supported by decades of research. Unfortunately, that advice does not travel well on social media.By contrast, statements such as “plants are poison” or “fiber is unnecessary” spread rapidly. Bold claims generate engagement. Engagement produces followers. Followers create revenue streams.Consequently, the carnivore diet does not function only as a nutritional recommendation. It functions as a brand.Once someone builds that brand, they must defend it.The Prophets: The Case of the Liver KingEvery belief system eventually develops its prophets, and the carnivore world found one in a man who called himself Liver King.He appeared online with an enormous beard, an even larger physique, and a simple message: modern men had grown weak because they had abandoned the practices of their prehistoric ancestors. According to his message, people should eat raw organs, train like cavemen, reject modern foods, and adopt “ancestral living.”Conveniently, the ancestral lifestyle also included supplements he sold through his company.The marketing proved effective. The image of a muscular barbarian rejecting modern science attracted millions of followers and produced a supplement business worth tens of millions of dollars.Unfortunately, the story collapsed in 2022 when leaked emails revealed the Liver King spent more than $10,000 per month on anabolic steroids and other performance-enhancing drugs. Shortly afterward, he admitted publicly what physicians suspected from the beginning.Raw liver did not build that physique.Pharmacology did.Nevertheless, the episode illustrates the economic logic of the carnivore movement. First comes the doctrine. Then comes the identity. Finally, come the products.The Theologians: Paul SaladinoMovements rarely survive on prophets alone. They also require theologians—people who explain the doctrine with intellectual confidence.Within the carnivore community, one of the most prominent interpreters has been Paul Saladino, a physician originally trained in psychiatry who later rebranded himself as Carnivore MD.For several years, his message remained uncompromising. Plants contained toxins. Vegetables acted as chemical weapons. Humans thrived best on meat, organs, and animal fat. His book The Carnivore Code argued that modern civilization misunderstood nutrition and that health required a return to meat-centered eating.However, the human body eventually entered the conversation.After spending years on a strict carnivore diet, Saladino described several physiological problems: poor sleep, heart palpitations, muscle cramps, and hormonal changes. Consequently, the diet evolved.Fruit appeared. Honey appeared. Raw dairy appeared.Today, the diet carries a new label—an “animal-based diet.” In practice, that means meat accompanied by carbohydrates from fruit and honey.In other words, the diet rediscovered sugar.This pattern appears frequently in nutrition movements. Early stages emphasize purity and certainty. Later stages quietly reintroduce flexibility when biology refuses to cooperate.Also, Paul is partners with Liver King.The Economic EngineThe economic component remains impossible to ignore.Carnivore influencers rarely restrict themselves to books and podcasts. Instead, they build supplement companies that sell freeze-dried organs, nutrient capsules, and other “ancestral” products. The marketing narrative follows a familiar path.Modern food supposedly lacks essential nutrients.Ancient diets suppose

Mar 19, 202611 min

Ep 118Minnesota Starvation Experiment: Food Noise, Science

The Minnesota Starvation Experiment: What Hunger Does to the Human MindEvery few years, someone announces the solution to weight loss.Eat less.Fast longer.Cut carbs.Cut fat.Cut something.Naturally, the advice usually comes with a tone of moral certainty. If you are hungry, the implication goes, you simply lack discipline.However, long before social media, diet influencers, and the phrase food noise entered the modern vocabulary, scientists ran an extraordinary experiment that revealed something profound about hunger.Rather than speculate about appetite, they studied it directly.In the middle of World War II, researchers deliberately starved healthy young men.The results changed how we understand hunger forever.Why the Experiment HappenedDuring World War II, much of Europe faced severe food shortages. Cities were bombed, farms disrupted, and supply chains shattered. Consequently, millions of civilians were suffering from malnutrition and starvation.Yet another problem quickly emerged. Refeeding starving populations turned out to be complicated. If nourishment returned too quickly, dangerous metabolic complications could occur. Doctors needed to understand not only starvation but also recovery from starvation.Therefore, the U.S. government supported research designed to answer a simple but critical question:What happens to the human body and mind when calories are severely restricted for long periods?The scientist leading that effort was Dr. Ancel Keys at the University of Minnesota.Today, Keys is often remembered for his later work on diet and heart disease. Nevertheless, his wartime research produced one of the most remarkable studies ever conducted in nutrition science.The results were eventually published in a monumental two-volume work titled:“The Biology of Human Starvation.”This massive text, published in 1950, remains one of the most detailed examinations of hunger ever written.KEYS, ANCEL, JOSEF BROŽEK, AUSTIN HENSCHEL, OLAF MICKELSEN, HENRY LONGSTREET TAYLOR, Ernst Simonson, Angie Sturgeon Skinner, et al. The Biology of Human Starvation: Volume I. University of Minnesota Press, 1950. https://doi.org/10.5749/j.ctv9b2tqv.The VolunteersTo conduct the study, Keys recruited 36 conscientious objectors.These men had refused military service during World War II for moral or religious reasons. Nonetheless, they still wanted to contribute to the war effort. Participating in this experiment became their way of helping.Importantly, the volunteers were healthy young men. They had normal body weight, good physical fitness, and no significant psychological problems. In other words, they were ideal research subjects.Furthermore, they understood the risks.They would experience months of severe caloric restriction.Even more remarkable, the experiment took place beneath the University of Minnesota football stadium, turning an athletic facility into one of the most important laboratories in nutrition history.The Structure of the ExperimentThe study unfolded in three distinct phases.First came the baseline period. For several months, the men ate normally, consuming approximately 3,200 calories per day. Researchers measured body weight, metabolism, and psychological health to establish a stable starting point.Next came the central part of the experiment: six months of semi-starvation.During this period, calorie intake dropped to roughly 1,500 calories per day. That number may sound familiar because many modern diet programs recommend similar intake levels.The food itself resembled wartime rations. Participants ate simple meals consisting primarily of potatoes, bread, macaroni, turnips, and small amounts of dairy.Although the men remained physically active, their energy intake was cut in half.Finally, the experiment concluded with a refeeding phase designed to observe how the body recovers after prolonged starvation.The Unexpected Psychological EffectsResearchers expected weight loss.What surprised them was the dramatic change in the men’s relationship with food.Gradually, the volunteers became completely preoccupied with eating.First, they began collecting recipes. Soon afterward, they spent hours reading cookbooks.Remember that this was long before television cooking shows or the Food Network. Nevertheless, these men read cookbooks the way other people read novels.Additionally, food became the center of conversation. Participants talked about meals constantly. They debated cooking techniques and discussed ingredients in remarkable detail.Meanwhile, eating itself changed dramatically.Many men developed elaborate food rituals. Some cut meals into tiny pieces to make them last longer. Others chewed gum continuously to quiet hunger. Still others drank large amounts of water or coffee simply to fill their stomachs.Eventually, several participants reported dreaming about food every night.At that point, hunger had completely dominated their mental landscape.When Hunger Changes PersonalityAlongside this intense food focus came

Mar 5, 202611 min

Ep 117From Gila Monster to GLP-1 Revolution

Meanwhile, in a LaboratoryIn 1990, researchers isolated a peptide from Gila monster venom. Two years later, work from the Bronx VA Medical Center described exendin-4, a molecule that resembled human GLP-1 but lasted far longer in circulation.Human GLP-1 survives only minutes before the body breaks it down. Exendin-4 resisted that breakdown. That difference changed everything.Soon afterward, the first GLP-1 receptor agonist reached patients under the brand name Byetta. At the time, physicians used it to treat diabetes. No one called it a weight-loss drug. No one predicted it would reshape obesity medicine.And yet, the foundation was already in place.While I Was OperatingAt the Phoenix Indian Medical Center, I performed weight loss surgery in a population with some of the highest rates of type 2 diabetes in the world. Researchers there studied metabolism intensely. The “thrifty gene” hypothesis gained traction in that environment. Scientists asked whether efficient energy storage, once protective in scarcity, became harmful in abundance.At the same time, I watched something remarkable in the operating room. After gastric bypass, patients’ blood sugars often improved within days, before meaningful weight loss occurred. Hormones were shifting. Physiology was driving outcomes.Meanwhile, GLP-1 drugs evolved.Researchers lengthened their half-lives. Chemists modified their structures so they bound albumin and stayed active for days rather than minutes. Clinical trials expanded. Safety data accumulated.Eventually, semaglutide showed average weight loss approaching fifteen percent of body weight in obesity trials. Then tirzepatide, now marketed as Zepbound for obesity, exceeded 20 percent weight reduction in higher-dose studies. In addition, cardiovascular outcome trials demonstrated reductions in major adverse cardiac events in high-risk patients.These were not cosmetic results. These were metabolic and cardiovascular outcomes.Food NoisePatients rarely talk about receptors. They talk about noise.Food noise.The constant internal dialogue about eating. The mental pull toward the pantry. The background chatter that never quite stops.GLP-1 receptors exist in appetite-regulating areas of the brain, including the hypothalamus and brainstem. These medications act through vagal signaling and through regions where the blood-brain barrier is more permissive. As a result, they modulate satiety and reward pathways.Consequently, many patients report something simple but profound: the noise quiets.Not disappears. Quiet.That distinction matters.Diet Culture PushbackPredictably, not everyone celebrates this shift.Diet culture thrives on the belief that weight reflects character. Some coaches insist the solution is fewer calories. Others argue for more beef, more butter, more fiber, or stricter discipline. Entire industries depend on the idea that trying harder solves everything.However, biology does not negotiate with virtue.Obesity is a chronic, relapsing, neurohormonal disease. No one worked harder at weight loss than many of my surgical patients. Likewise, I do not lack willpower. And I practice culinary medicine. Preaching and eating a Mediterranean diet.Nevertheless, effort alone does not silence dysregulated signaling.Calling GLP-1 therapy “cheating” misunderstands the science. These medications restore signaling. They amplify satiety. They reduce excess reward drive. They support physiology.That is treatment, not moral compromise.My Parallel UniverseWhen I began my career, I weighed about 185 pounds. Years later, hospital cafeterias, exhaustion, and irregular meals pushed me to 225. I understood obesity clinically. Then I understood it personally.In one version of my career, revision surgery remains the answer for weight regain. In this version, I reached for GLP-1 therapy instead.Today, I weigh what I weighed when Nixon was president.I am both surgeon and patient.And your reporter.A Necessary CautionGLP-1 medications carry risks as well as benefits. Nausea can occur. Gastric emptying slows. Gallbladder disease risk may increase, although obesity itself already raises that risk substantially. Physicians must monitor dosing carefully.Therefore, if you consider GLP-1 therapy, work with a trained physician who understands obesity medicine. Avoid quick online scripts. Seek supervision. Demand follow-up.Metabolic medicine deserves serious care.The Desert Was the BeginningI once thought Phoenix was punishment. The heat felt relentless. Even Satan might choose a cooler vacation. Only Canadians brave July—and who can blame them?However, what felt like exile turned out to be preparation.In that same desert, I learned surgery. Researchers debated the thrifty gene. A venomous lizard carried a peptide that would become the basis of modern metabolic therapy.I thought I had been sent to hell. But I found beauty in the desert, and by the time I left Arizona, I missed it terribly.Little did I know I was sent to the future in Arizona.

Feb 26, 202613 min

Ep 116Protein Panic: How Much Do You Really Need?

Protein Panic: How Much Do You Really Need?Everywhere you look, protein has become a competition.Scroll long enough and you will believe muscle disappears if you eat less than 150 grams a day. Meanwhile, influencers debate leucine thresholds like they’re trading baseball cards. As a result, ordinary meals now feel like math problems.However, biology does not require panic.Protein matters. Yet adequacy differs from excess. And importantly, most people eating real food already meet their needs.So let’s slow down.First, What Protein Actually DoesProtein builds and repairs tissue. In addition, amino acids support immune function and hormone signaling. Furthermore, specific amino acids such as leucine trigger muscle protein synthesis.Nevertheless, once you reach the effective leucine threshold in a meal, adding more protein does not multiply muscle growth. Instead, your body oxidizes the excess.Therefore, more does not always mean better.How Much Is Enough?For most healthy adults, about 0.8 grams per kilogram of body weight covers basic needs. Meanwhile, adults over 60 often benefit from 1.0 to 1.2 grams per kilogram to protect lean mass.Notably, that recommendation does not require heroic intake. In fact, a 75–80 kilogram adult typically lands between 60 and 90 grams per day.Consequently, many people hit those numbers without even trying.Here’s What I Actually DoI do not count protein. I never log grams. Moreover, I do not calculate leucine before breakfast.Instead, I eat normal meals.Most mornings, I have a shake. The recipe lives on terrysimpson.com. That shake provides roughly 25 grams of protein. Sometimes I add PB Fit. Occasionally, I include Greek yogurt. As a result, I increase protein slightly without thinking about it.Later, I eat three to five ounces of chicken breast with Louisiana hot sauce. That adds another 25 grams.Then at dinner, I often choose salmon and chickpeas. Together, they bring me to roughly 70–80 grams for the day.Importantly, I have lost 50 pounds and preserved muscle mass. I track muscle periodically. I see no decline.So what about leucine?High-quality animal protein contains about 8–10% leucine. Therefore, a 25-gram protein meal delivers about 2 grams of leucine. That amount typically triggers muscle protein synthesis.Thus, I hit the effective threshold at each meal without obsessing.Now Let’s Bring In GLP-1GLP-1 medications reduce appetite. Consequently, total intake drops. Because of that, protein intake can fall too.So yes, people using GLP-1 should pay attention. However, they do not need 180 grams per day. Instead, they need adequacy and resistance training.Lift something heavy. Spread protein across meals. Preserve lean mass.Simple.Here’s the Real DeficiencyProtein deficiency remains rare in the United States. By contrast, fiber deficiency remains common.According to the National Institutes of Health, most adults fail to meet recommended fiber intake levels. In fact, average intake falls far below the 25–38 grams per day recommended for adults.(Reference: NIH Office of Dietary Supplements – Fiber Fact Sheet)Meanwhile, high-protein diets often crowd out legumes, whole grains, and vegetables.So while people panic about protein, they quietly neglect fiber.And fiber feeds the microbiome. Fiber improves glycemic control. Fiber lowers LDL cholesterol.Protein builds muscle. Fiber protects metabolism.Both matter.Mediterranean Patterns Keep It BalancedMediterranean-style eating provides protein from fish, legumes, yogurt, and moderate poultry. At the same time, it supplies fiber from beans, vegetables, and whole grains.Therefore, protein arrives packaged with micronutrients and fermentable substrate.Unlike protein powders and bars, real food supports multiple systems at once.Consequently, longevity patterns emphasize diversity, not maximal single-nutrient intake.The TakeawayAdequate protein preserves muscle. Resistance training drives adaptation. Fiber protects metabolic health.So before you triple-scoop whey, pause.Ask yourself whether you lack protein — or whether you lack plants.Because protein matters.Panic does not.And once again, data beats dogma.

Feb 19, 20268 min

Ep 115Mexican Food Is Healthy. The Taco Took the Blame.

Why Traditional Mexican Food Is Healthy — and How America Got It WrongEvery time someone says Mexican food is unhealthy, I know exactly what they’re picturing.They aren’t picturing Mexico.They’re picturing an American taco: a hard shell or a fluffy white flour tortilla, fatty hamburger, sour cream, a thin smear of salsa that contributes almost nothing except salt, and a yellow substance legally allowed to be called cheese.After eating that, they naturally conclude Mexican food is the problem.That conclusion doesn’t come from biology. It comes from branding.Traditional Mexican food looks nothing like that. More importantly, it behaves nothing like that once it hits your body.So let’s slow down, take a breath, and do what we always do here—follow the evidence, not the vibes.First, Let’s Talk About the Taco America Put on TrialThe American taco stacks the deck against itself.It leads with saturated fat, piles on refined carbohydrates, and adds dairy on top of dairy. Meanwhile, it offers almost no fermentable fiber. The gut gets nothing to work with. Blood sugar spikes. Inflammation follows.That taco doesn’t help anyone.But here’s the key point: it isn’t Mexican food.It’s ultra-processed American convenience food wearing cultural drag.Now Let’s Look at a Real TacoBy contrast, a traditional taco starts very differently.It starts with a corn tortilla, not refined flour. Then it adds beans. After that, it layers vegetables, real salsa, and often cabbage. Finally, it finishes with avocado. Sometimes it includes fish. Sometimes it doesn’t. Either way, the structure holds.And structure matters.Because when you look at how that meal behaves biologically, it stops looking indulgent and starts looking smart.Corn Tortillas Aren’t the Villain — They’re the FoundationFirst of all, traditional corn tortillas come from nixtamalized corn. That process treats corn with lime, and no, that isn’t trivia.Instead, nixtamalization improves mineral absorption, improves protein quality, and preserves resistant starch.As a result, resistant starch passes through the small intestine untouched. Then it reaches the colon, where gut bacteria ferment it. Consequently, those bacteria produce short-chain fatty acids, especially butyrate.And here’s the important part: butyrate fuels the cells lining your colon. In addition it strengthens the gut barrier. It reduces inflammation. Finally, it improves metabolic signaling.So no, this isn’t a carb disaster. On the contrary, it’s colon nutrition.Beans Do the Heavy Lifting — And They Always HaveNext, add beans.At that point, the conversation usually derails, so let’s keep it grounded.A serving of beans delivers roughly ten grams of fiber. Not one kind — several kinds. Soluble fiber. Insoluble fiber. Resistant starch. Plus protein.Because of that, beans slow digestion. They flatten glucose curves. They improve satiety. Most importantly, they feed gut bacteria that matter.Specifically, bean fiber supports Akkermansia, a gut bacterium associated with better insulin sensitivity and a stronger gut barrier.In other words, beans don’t fill space. Instead, they build infrastructure.And yes, when you pair beans with rice, you get a complete amino acid profile. Humans figured that out centuries ago, long before protein powders and “ancestral” snack companies tried to monetize it.Now Let’s Deal With Refried Beans — Because This Is Where People PanicAt this point, someone inevitably says, “But what about refried beans?”So let’s clear that up.First, frijoles refritos does not mean “fried twice.” It means well-fried or thoroughly cooked. Traditionally, people cooked beans, then lightly cooked them again, often mashing them for texture.So yes — refried beans are traditional. Very traditional.Moreover, mashing beans does not remove fiber. Cooking beans does not turn them into sugar. Beans remain beans.So where did refried beans go wrong?Fat choice.Historically, many refried beans used lard. That made sense when calories were scarce and undernutrition threatened survival. However, in a modern context, large amounts of lard mean large amounts of saturated fat.Therefore, when refried beans swim in lard, then get buried under cheese, then land inside a refined flour tortilla, the problem isn’t the beans. The problem is the fat context.Fortunately, this problem has an easy fix.Use olive oil or another unsaturated fat. Add onions and garlic. Mash lightly, not into paste. Suddenly, refried beans snap right back into a Mediterranean-style pattern.And yes — some commercially available refried beans already do this. Look for short ingredient lists. Look for beans, oil, onion, garlic, salt. Skip the lard. Skip the mystery fats. Your gut will notice.Avocado Doesn’t Add Calories — It Unlocks NutritionThen comes avocado, which people love to blame for reasons that make no biological sense.Avocado provides about five grams of fiber and a meaningful amount of monounsaturated fat — the same fat family as olive oil.More importantly,

Feb 12, 20269 min

Ep 114Keep Your Poop in a Group

Why Fiber Fails to Impress—and Why That’s the PointFiber has a public relations problem. Unlike supplements or extreme diets, fiber does not promise instant transformation. Instead, it works slowly, predictably, and quietly. Because of that, people rarely notice it when it’s doing its job well. However, that very boredom is precisely why fiber matters.When fiber intake is adequate, digestion functions normally, blood sugar behaves more consistently, and bowel habits stay predictable. As a result, there is no drama to post on social media. Consequently, influencers move on. Meanwhile, the science stays exactly where it has been for decades: fiber lowers disease risk over time.That kind of quiet effectiveness may not sell products, but it saves lives.“Fiber Isn’t Essential”—Why That Argument Misses the MarkTechnically speaking, fiber is not an essential nutrient in the classic sense. In other words, there is no disease caused solely by a lack of fiber the way scurvy results from vitamin C deficiency. Because of this, critics often stop the conversation there.However, medicine does not ask only whether you survive. Instead, it asks whether your risk of chronic disease rises or falls over time. On that front, fiber consistently lowers the risk of colon cancer, improves glucose regulation, reduces constipation, and supports cardiovascular health. Therefore, while you can live without fiber, you do not age particularly well without it.Protein Gets the Spotlight While Fiber Does the WorkAt the same time, nutrition conversations fixate on protein. Protein goals dominate podcasts, social media, and supplement aisles. Yet, in practice, true protein deficiency in the United States is rare, even among bariatric surgery patients.In contrast, fiber deficiency is the norm. Roughly 92% of Americans fail to meet recommended fiber intake. As a result, constipation becomes common, long bathroom visits feel normal, and scrolling on a phone in the bathroom gets rebranded as “self-care.” Unfortunately, that normalization hides a real problem.A Personal Lesson From Oats, Gas, and a Scorched DeskYears ago, I learned a fiber lesson the hard way. After deciding to increase my fiber intake quickly, I started eating steel-cut oats every morning during a busy meeting week. At first, everything seemed fine. Soon, however, my digestive system made it clear that it had not been consulted in this decision.By the second day, bloating appeared. By the third day, office etiquette became questionable. Consequently, I lit a candle at my desk. Unfortunately, I turned my back, and papers caught fire. Although the flames were extinguished quickly, the scorch mark stayed for years.That stain served as a reminder: fiber works best when introduced gradually. Your gut adapts over time. Confidence without patience, on the other hand, leads to unnecessary consequences.Not All Fiber Works the Same WayUnderstanding fiber helps people stop fearing it. Soluble fiber, found in oats, barley, beans, lentils, psyllium, apples, and citrus, forms a gel in the gut. Because of this, it slows absorption, reduces glucose spikes, and lowers LDL cholesterol. Consequently, psyllium appears in clinical guidelines rather than influencer protocols.Meanwhile, insoluble fiber focuses on mechanics. It adds bulk, speeds transit, and improves regularity. Importantly, this matters even more for people using GLP-1 medications, where slowed digestion often leads to constipation. In that setting, fiber is not optional—it is foundational.Finally, fermentable fiber feeds gut bacteria. Beans, onions, garlic, asparagus, chicory root, and resistant starch nourish beneficial microbes. As these bacteria grow, they produce short-chain fatty acids, especially butyrate, which supports gut barrier function and immune regulation.No, Butter Is Not a Shortcut to ButyrateDespite what circulates online, butter does not meaningfully deliver butyrate to your colon. Although butter contains trace amounts of butyric acid, that fat is absorbed in the small intestine long before it reaches the colon. In contrast, the butyrate that protects colon health is produced by bacteria fermenting fiber directly in the colon.Therefore, if butter were an effective therapy, gastroenterologists would prescribe croissants. They do not.Supplements Help—but Food Still WinsFiber supplements can be useful. Psyllium and methylcellulose typically provide four to five grams of fiber, which helps people start. However, that amount represents only about ten percent of a reasonable daily target.Personally, I use Loam, which provides around twelve grams of mixed fiber in a smoothie. Nevertheless, supplements act as bridges, not destinations. Ultimately, food does the heavy lifting.IBS, FODMAPs, and Why We Avoid Diet CosplaySome people with IBS feel worse when fermentable fiber increases too quickly. Because fermentation produces gas, symptoms can flare initially. For that reason, clinicians use FODMAPs as a temporary elimination

Feb 5, 202612 min

Ep 113How GLP-1 Quiets Food Noise

Food Noise Isn’t Hunger — and Why Broccoli Never Fixed the BrainFood noise does not announce itself politely. Instead, it hums in the background, persistent and exhausting. For years, patients tried to describe it. Meanwhile, medicine largely ignored it. Recently, however, GLP-1 receptor agonists forced the conversation into the open.I did not understand food noise myself until it stopped.About twelve hours after my first GLP-1 injection, I stood in my kitchen waiting for baked salmon to finish cooking. Nothing dramatic happened. No emotional moment followed. Still, something felt different. The internal commentary was gone. The negotiations disappeared. For the first time, my brain felt quiet.At that moment, I finally understood what patients had been telling me for years. First, Define the Problem ClearlyFood noise is not hunger. Hunger serves a biological purpose. In contrast, food noise describes persistent, intrusive thoughts about food that occur regardless of energy needs. People experience rumination, preoccupation, cravings, and mental fatigue—even when they are physiologically full.Importantly, this phenomenon is now measurable. The Food Noise Questionnaire validates what patients already knew. Specifically, it assesses the frequency of food thoughts, difficulty controlling them, interference with daily activities, emotional distress, and craving intensity. In other words, food noise exists independently of willpower.Consequently, advice that targets hunger alone inevitably fails. Next, Address the Broccoli MythI eat vegetables. Nevertheless, I have never liked broccoli.Frankly, if broccoli is air-fried to the edge of carbonization, I will tolerate it. That concession, however, does not transform broccoli into a neurological intervention. Fiber increases fullness. Protein improves satiety. Vegetables slow digestion. None of those actions quiet the reward centers of the brain.Put simply, broccoli fills the stomach. Food noise lives elsewhere.Because of that distinction, the “just eat for satiety” argument collapses under scrutiny. Then, Follow the Science Where It LeadsFood noise arises from heightened food-cue reactivity. Visual cues, smells, availability, and anticipation activate reward pathways long before food reaches the stomach. Ultra-processed foods amplify this response. Their engineered combinations of refined carbohydrates, fats, salt, and flavor compounds reliably stimulate the mesolimbic dopamine system.As a result, ultra-processed foods increase wanting rather than liking.However—and this matters deeply—removing ultra-processed foods does not automatically restore normal appetite signaling. Once reward circuitry becomes dysregulated, dietary virtue alone cannot reset it. At that stage, telling someone to “just eat whole foods” resembles telling someone with tinnitus to “enjoy the silence.”Therefore, ultra-processed foods contribute to the problem, but they do not explain it entirely. Now, Enter GLP-1 Receptor AgonistsGLP-1 receptor agonists act centrally and peripherally. While many people fixate on gastric emptying, the central mechanisms explain the lived experience.In the hypothalamus, GLP-1 receptor agonists activate satiety-promoting POMC/CART neurons while inhibiting hunger-promoting NPY/AgRP neurons. This dual action reduces homeostatic hunger. Meanwhile, in the brainstem—particularly the nucleus tractus solitarius—GLP-1 signaling integrates gut-brain communication and sustains appetite suppression.More importantly, GLP-1 receptor agonists modulate reward circuitry. In regions such as the ventral tegmental area and nucleus accumbens, these agents dampen dopamine signaling. Consequently, food becomes less compelling rather than forbidden.Functional imaging studies confirm this effect. After GLP-1 treatment, brain responses to food cues decrease in the insula, amygdala, orbitofrontal cortex, and related regions. The brain still recognizes food. It simply stops obsessing.As a Result, Behavior Changes Without ForceOnce food noise quiets, people do not suddenly become disciplined saints. Instead, they become selective.In my own case, wine lost its appeal. I did not swear it off. I simply stopped wanting it. Eventually, I quit five wine clubs. When a glass tastes mediocre, I put it down and choose iced tea. That behavior reflects altered reward signaling, not moral growth.Similarly, food choices shift without struggle. People stop eating things merely because they are available. They stop drinking because something is poured. The absence of compulsion creates space for intentional eating.That distinction explains why GLP-1 therapy feels different from appetite suppression.Finally, Place Diet Back Where It BelongsThe Mediterranean diet improves health. I recommend it. I eat it. Still, it does not cure food noise.Diet supports metabolic health once interference disappears. GLP-1 therapy removes that interference. Together, they work better than either alone. Pretending otherwise leads

Jan 29, 20269 min

Ep 112Whole Milk Isn’t the Fix—Feeding Kids Is

Whole Milk Is Back in SchoolsBut Hungry Kids Are Still the Real ProblemWhole milk is back in school cafeterias.As a result, a lot of people are celebrating. Some are calling it a victory for nutrition. Others are calling it common sense. Meanwhile, a few are even calling it a breakthrough.However, that excitement misses the point.Because the biggest problem facing kids in school today is not milk fat.Instead, the real problem is hunger.First, Let’s Start With the ObviousBefore we talk about milk, fat, or nutrients, we need to start with something very basic.Hungry kids do not learn well.In fact, hunger affects attention, memory, and behavior. As a result, students who do not eat enough struggle to focus. Over time, that struggle shows up as lower academic performance.Because of that, no change to milk will ever fix an empty stomach.Therefore, if we want better outcomes, we have to start with food access.Next, What Actually Changed With MilkDespite what many people believe, whole milk was not removed from schools in the past.Instead, schools continued to offer low-fat and fat-free milk.Importantly, those options provided the same essential nutrients:proteincalciumpotassiumiodinevitamin B12In addition, vitamin D was added through fortification, regardless of milk fat level.So, children did not lose vital nutrients.What they lost was milk fat.Now, Why Milk Fat Is Not EssentialMilk fat is made mostly of saturated fat.That matters because saturated fat is not an essential dietary nutrient.If the human body needs saturated fat, it can make it on its own. In other words, there is no requirement to eat it for normal growth or brain development.As a result, adding more saturated fat to a child’s diet is not necessary.Then, Let’s Talk About the BrainHere is where biology matters.The brain is built largely from polyunsaturated fats, not saturated fats.These polyunsaturated fats keep cell membranes flexible. Because of that flexibility, brain cells can signal, adapt, and learn.In contrast, saturated fat is rigid. It plays only a small structural role in membranes. If membranes contained too much saturated fat, they would become stiff. When that happens, signaling does not work well.For that reason, biology uses saturated fat sparingly.Therefore, less saturated fat in the diet of growing children is actually better for long-term brain and cardiovascular health.Meanwhile, What Kids Are Really MissingIf there is one nutrient that most children lack, it is fiber.Fiber supports gut health. In addition, it improves insulin sensitivity. Over time, it also reduces cardiovascular risk.Milk fat does none of those things.So, if nutrition is the concern, fiber deserves more attention than nostalgia for saturated fat.At the Same Time, Food Access Is ShrinkingWhile milk is being discussed, something else is happening quietly.Food assistance programs are being reduced.That matters because programs like SNAP do more than help families buy groceries. They also help children qualify for free school meals.When eligibility is reduced, fewer children qualify. As a result, schools receive less funding for lunch programs. Consequently, some schools serve fewer meals. In certain communities, programs disappear entirely.Therefore, the outcome is simple: fewer kids eat at school.In Contrast, Feeding Kids Actually WorksSome states have shown a different approach.When children receive meals consistently, attendance improves. At the same time, concentration improves. Over the long term, educational outcomes improve as well.This result has been seen repeatedly.Because of that, feeding kids is not charity. Instead, it is an investment in education, health, and future productivity.So, Let’s Put This TogetherWhole milk is fine.If families enjoy it, they can drink it. If schools offer it, that is acceptable.However, whole milk is not an innovation.Feeding children is.Ultimately, school meals should not be treated as a budget line to debate each year. Instead, they should be treated as part of what a functioning society does for its kids.One Reference on Brain Fat and Cell MembranesFor readers who want the science behind membrane fats and brain function, this review explains it clearly:Stillwell W, Wassall SR.Docosahexaenoic acid: membrane properties of a unique fatty acid.Chemistry and Physics of Lipids. 2003;126(1):1–27.This paper explains why polyunsaturated fats keep membranes flexible and why saturated fats play only limited roles.

Jan 22, 202610 min

Ep 111Food Pyramid Blues: Influencers are not Scientists

When Influencers Replace Scientists, Everyone LosesEvery few years, nutrition gets a makeover.First comes a new graphic.Then comes a new slogan.Soon after, we hear claims that this time, someone finally figured it all out.Recently, that makeover arrived in the form of a “reverse food pyramid” and the cheerful phrase “Eat Real Food.” On the surface, that message sounds reasonable. In fact, many doctors have said the same thing for decades.However, the real problem isn’t the slogan.Instead, the problem lies in who is now shaping nutrition advice—and who is not.Yes, Some of the Advice Is RightTo be clear, let’s start with agreement.Eating real food helps health.Limiting added sugar makes sense.Reducing ultra-processed foods improves outcomes.Importantly, none of this is new.Doctors, dietitians, and public-health researchers have said these things for years. Because of that, when influencers now say, “See, we were right,” a serious issue appears.They didn’t discover this information.They copied it.The Real Risk Isn’t AgreementAt first glance, agreement sounds harmless.Nevertheless, agreement becomes dangerous when it turns into ownership.Once someone believes they have discovered basic nutrition truths, they often assume they can rewrite everything else. As a result, bad ideas slip in quietly, wrapped in confidence instead of evidence.That shift matters.Scientists and Influencers Are Not InterchangeableAt this point, we need to say something clearly.We cannot afford to replace scientists with influencers.Nutrition science didn’t come from podcasts or social media. Instead, it came from metabolic ward studies, long-term population research, and randomized trials. Moreover, real scientists accept uncertainty. They change their minds when the data changes.By contrast, influencer culture rewards certainty.Even worse, confidence often replaces humility.There is no “Mediterranean diet influencer community.”Likewise, there is no “DASH diet movement.”Those dietary patterns exist because scientists studied them, tested them, and measured outcomes over time.On the other hand, a loud low-carb and carnivore influencer ecosystem does exist. That ecosystem includes brands, supplements, coaching programs, and a strong contrarian identity. Because of that structure, influence—not evidence—often drives the message.Fiber Versus Saturated Fat: A Telltale SignIf you want to know whether someone understands nutrition science, ask a simple question:Which matters more—fiber or saturated fat?Influencers often say, “Fiber isn’t an essential nutrient.”Technically, that statement is true in the narrowest sense.However, context matters.Fiber supports a healthy gut microbiome.Additionally, fiber improves insulin sensitivity.Furthermore, fiber lowers cardiovascular risk.Finally, fiber supports colon health.Because fiber feeds beneficial gut bacteria, entire fields of microbiome research depend on it.Now compare that with saturated fat.Saturated fat is truly non-essential.Your body can make all it needs.No deficiency disease exists from avoiding it.Even more importantly, excess saturated fat raises LDL cholesterol and worsens artery health. Over time, that increases cardiovascular risk.So ask yourself this:Why dismiss fiber as optional while quietly promoting saturated fat?That choice reflects ideology, not biology.The Brain Doesn’t Care About TrendsHere’s another reality check.Your brain—the most important organ you own—relies heavily on polyunsaturated fats. These fats support cell membranes, nerve signaling, and blood flow.Ironically, these same fats often get labeled “seed oils” and dismissed.Meanwhile, saturated fat does not belong in high amounts in brain tissue. Worse still, saturated fat can clog the arteries that supply the brain.Biology does not respond to marketing.Physiology does not care about popularity.The “You’re On Your Own” ProblemAnother issue deserves attention.After influencers step into the spotlight and claim credit for old science, they often step away from responsibility. Then they tell the public to “figure it out.”That approach ignores reality.Many Americans live in food deserts.Even more rely on school meals.Lots of Americans work multiple jobs.Many lack time, money, or kitchens.Public health exists because willpower alone does not scale. Without system-level support, advice turns into abandonment.Agreement Does Not Equal ExpertiseRecently, debates around nutrition have highlighted this pattern clearly.Some influencers argue that because they agree with basic nutrition advice, they deserve authority over the rest of the science. Unfortunately, agreement does not grant expertise.Copying conclusions does not mean you earned them.Science rewards method, not confidence.The Bottom LineYes, eat real food.And clearly, limit added sugar.Most definitely, reduce ultra-processed foods.Doctors have said this for years.However, flipping a pyramid does not change biology.Likewise, sidelining scientists does not improve health.F

Jan 15, 20267 min

Ep 110Ultra-Processed Food The Enemy

Ultra-Processed Food: Making Sense of the MadnessUltra-processed food has become the villain of modern nutrition.Scroll through social media, and you’ll hear that it’s poisoning us, wrecking our gut, and driving the obesity epidemic all by itself.At the same time, other voices dismiss the entire idea as fear-mongering.According to them, processing doesn’t matter at all.Neither extreme tells the full story.So instead of slogans, let’s talk about what ultra-processed food actually means, why people want to blame it, where the science is strong, and where it starts to drift into storytelling.Why We’re Looking for Something to BlameThe obesity epidemic is real.Rates have climbed for decades, and people understandably want answers.Human biology didn’t suddenly change in the 1980s.Willpower didn’t vanish overnight.Something in our environment shifted.Food is an obvious suspect.Because food changed, many people assume there must be a single culprit hiding in the ingredient list.That belief leads to bold claims.Some say Europe bans certain additives and therefore avoids obesity.In reality, obesity rates continue to rise across Europe as well.Others argue that specific ingredients damage the gut, letting in more calories or triggering metabolic chaos.Those ideas sound scientific, especially when they involve complex biology.However, when a problem is large and complicated, humans naturally want a cause that feels simple and controllable.Blaming one ingredient feels easier than confronting patterns of eating, stress, time pressure, and convenience.Biology, unfortunately, rarely offers cinematic villains.What “Ultra-Processed” Actually MeansTo understand the debate, definitions matter.Researchers use the NOVA classification system to describe food processing.NOVA does not rate healthfulness.Instead, it categorizes food by how manufacturers produce it.The system includes four groups.First come whole or minimally processed foods, such as vegetables, beans, eggs, and fish.Next are culinary ingredients like oil, sugar, salt, and flour.Then come processed foods, including bread, cheese, yogurt, and canned vegetables.Finally, NOVA defines ultra-processed foods as industrial formulations.These products often combine refined ingredients with additives, stabilizers, emulsifiers, and flavor systems that home cooks rarely use.Here’s the crucial point.Ultra-processed food is defined by how it is made, not by what it does in the body.That distinction often gets lost.As a result, soda and whole-grain bread can fall into the same category, even though they behave very differently nutritionally.Why Ingredient Blame Falls ShortAt this point, many discussions take a wrong turn.Instead of asking how people eat, the conversation focuses on what to ban.Ingredients become the enemy.Yet most claims about additives rely on animal studies using doses far higher than what humans consume.Human data remains limited and inconsistent.Meanwhile, the bigger picture often gets ignored.Ultra-processed food correlates with stress, long work hours, poor sleep, and limited time for cooking.Those factors influence eating behavior regardless of ingredients.When people feel rushed and overwhelmed, they don’t just eat differently.They eat faster, snack more often, and rely on foods that require little effort.That context matters.The Simple Question That Changed the ConversationInstead of chasing villains, one researcher asked a much simpler question.Do people eat more when food is ultra-processed, even when nutrition looks the same on paper?That question led to the most important experiment in this entire debate.What Kevin Hall Actually FoundAt the National Institutes of Health, Kevin Hall conducted a tightly controlled feeding study.Participants lived in a metabolic ward.Researchers controlled the environment, the meals, and the measurements.Each participant ate two diets.One diet consisted mostly of ultra-processed foods.The other relied on minimally processed foods.Importantly, researchers matched calories, protein, fat, carbohydrates, sugar, and salt.People could eat as much as they wanted.The result surprised almost everyone.On the ultra-processed diet, participants consumed about 500 extra calories per day.Yet, they didn’t report more hunger.They didn’t feel less full.However, they simply ate more.This finding matters because it avoids speculation.No ingredient theories appear here.No gut damage claims drive the conclusion.Ultra-processed food made it easier to eat more calories without noticing.Sometimes the most powerful answers are also the least dramatic.Why a Book Made This Go ViralThat study helped fuel widespread interest, including the success of Ultra-Processed People: The Science Behind Food That Isn't Food by Chris van Tulleken.Van Tulleken, a British physician, took a personal approach.He ate a diet dominated by ultra-processed foods and documented the effects.Weight gain followed.Hunger became harder to regulate.Energy and mood shifted.The

Jan 8, 20269 min

Ep 109Willpower Is B.S.: A Surgeon on Zepbound

Willpower Is B.S.: Food Noise, Healthspan, and What Actually Changed My LifeFor decades, I started every New Year the same way.In January, I promised myself this would be the year.By February, I tried harder.Every spring, I adjusted the plan.And by summer or fall, the weight crept back.That cycle repeated not because I lacked knowledge, discipline, or effort. Instead, it repeated because I misunderstood biology — at least when it came to myself.This year is different.For the first time since Ronald Reagan was first elected, weight loss is not at the top of my New Year’s resolution list. Not because I stopped caring, but because I lost 45 pounds with the help of Zepbound over the last year. More importantly, however, I learned something that reshaped how I think about obesity, healthspan, and shame.Before anything else, let me be clear: this is not medical advice. This is a story. Anecdotes are not evidence, even when the anecdote is from a physician. Nevertheless, stories help us understand science when data alone fails to move us.And this story matters.I Had Willpower. That Wasn’t the Problem.For years, people told me — and millions of others — the same thing: move more and eat less. At first glance, that advice sounds logical. After all, calories matter. Energy balance matters.However, reality is more complicated.To begin with, I am a surgeon. Surgical training requires extraordinary willpower. Moreover, I’ve logged food meticulously, cooked Mediterranean-style meals, exercised consistently, and followed every evidence-based recommendation I’ve ever given patients.Meanwhile, Oprah has willpower. Olympic athletes have willpower. Yet obesity persists.Sure, willpower works briefly. In fact, go on a liquid protein diet, and the weight will fall off quickly. Unfortunately, the food noise remains. Eventually, biology wins. Always.In the same way you cannot positive-think your way out of hypertension, cholesterol, diabetes, cancer, or heart disease, you cannot willpower your way out of obesity. Obesity is a disease. It is not a moral failure.Ironically, I knew this intellectually. Nevertheless, I failed to apply it to myself. We have a name for that: cognitive dissonance.Food Noise Was the Missing ConceptThe real turning point did not come from reading another study. Instead, it came from listening to people I trusted.One colleague quietly lost weight on a GLP-1. Another friend told me something more striking: the food noise stopped. Alcohol lost its appeal. Smoking no longer called.That phrase — food noise — suddenly explained decades of struggle.To illustrate, think of sleeping near Lake Shore Drive in Chicago. At first, traffic noise dominates your awareness. Eventually, it fades into the background. Only when you leave the city do you realize how loud it was.Food noise works the same way.When GLP-1 therapy quieted that background signal, eating slowed naturally. Meals ended without effort. Desire changed without rules. Biology shifted.Notably, calories did not lower my stress. Calories did not improve my sleep. Calories did not stop snoring. Biology did.The Unexpected Early BenefitsInterestingly, weight loss was not the first change I noticed.Sleep improved almost immediately. Stress dropped dramatically. Commutes that once registered hours of physiologic stress now barely registered minutes. Appetite normalized. Eating slowed.These changes matter because sleep and stress directly affect inflammation, metabolic health, appetite signaling, and long-term disease risk. In other words, healthspan improved before the scale reflected anything meaningful.That observation alone reframed the entire experience.Why Support Groups Matter More Than Diet RulesAlong the way, something else happened.Friends noticed.Predictably, they asked the same question everyone asks: What diet is working? After I answered honestly, several started their own journeys.Soon enough, we formed an informal support group. People texted. Others called. Questions surfaced: Is this normal? Should I eat this? Does this feeling pass?Support did not mean coaching. Rather, support meant context. Shared experience reduced anxiety. Honest conversations prevented unnecessary panic.Not surprisingly, patterns emerged. People still loved great food. Wine interest decreased naturally. Travel did not end. Joy remained intact.Support mattered because isolation amplifies shame.Vitamins, Bowels, and the Things No One MentionsEqually important, practical realities surfaced.Eating less means needing micronutrients, not fewer of them. Unfortunately, some vitamins fail when appetite drops. In fact, the only time I vomited was after taking a vitamin on an empty stomach. That lesson mirrored decades of bariatric follow-up experience.For me, AG1 worked. No sponsorship exists here. Nevertheless, cost raises questions. With a background in culinary medicine, developing a better formulation makes sense. Thiamine deficiency, for example, causes devastating neurologic cons

Jan 1, 202617 min

Ep 108Is Whoop Predicting My Death?

Is Your Watch Predicting Your Death?What Biologic Age Really Means — and What It Doesn’tMy Whoop tells me I’m eight years older than I actually am.Naturally, that raises a question.Does that mean I’m going to die eight years sooner?Is my watch quietly chiseling a new date onto my tombstone?Fortunately, the answer is no.Still, confusion around biologic age has exploded.Wearables promise insight.Apps offer scores.Some even whisper about your future health, as if destiny lives on your wrist.So let’s slow this down and talk about what biologic age really is — and why it matters far less than you think.The Two Numbers and the DashEvery tombstone has two numbers.One marks when you were born.The other marks when you died.However, the most important part isn’t either number.It’s the dash in between.That dash represents your life.It reflects your health, mobility, independence, and curiosity.When we talk about longevity, we shouldn’t obsess over the second number.Instead, we should focus on making those two numbers far apart — and keeping the dash strong for as long as possible.That’s healthspan.Why Biologic Age Sounds Scarier Than It IsBiologic age is not a prophecy.It isn’t a death clock.It doesn’t predict how long you’ll live.Instead, biologic age is a model.It estimates how your body is functioning right now based on things like:resting heart rateheart-rate variabilitysleep duration and consistencyactivity and recovery patternssometimes weight or blood pressureDifferent devices use different inputs.As a result, they often give different answers.In other words, biologic age reflects recent stress and behavior, not your destiny.Think of it as feedback — not fate.Why Your Watch Isn’t Measuring “Real” AgingEarlier in the Fork U longevity series, we talked about telomeres.Those shorten slowly over decades, one cell division at a time.Your wearable isn’t tracking that.Instead, devices like Whoop measure physiology, not DNA.They detect how hard you’ve been living lately, not how much time you have left.A bad week of sleep, travel, stress, or alcohol can push your biologic age higher.A calm, consistent routine can bring it back down.That’s not aging.That’s load management.A Simple Experiment That Tells the Whole StoryHere’s a trick I tried.I told Whoop I was younger than I actually am.Guess what happened?Suddenly, my biological age dropped below my real age.That alone tells you everything.Whoop isn’t predicting where you’re going.It’s comparing how you’re doing relative to the age you told it you are.Once again, that’s feedback — not destiny.Why I Prefer WithingsI use multiple devices because, frankly, I’m a nerd.However, I tend to prefer Withings for one simple reason.They don’t try to scare you.Instead of telling you how old you “really” are, Withings focuses on things that actually improve your life today:blood pressure trendsbody weight and compositionheart rhythmsleep durationlong-term consistencyMore importantly, they ask better questions.Are you sleeping better?Is your blood pressure improving?Are your habits trending in the right direction?That’s medicine.Not numerology.And no — Withings didn’t pay me to say that.The Biggest Mistake People MakeMany people treat biologic age like a grade.Others see it as a moral judgment.When the number drops, they feel virtuous.When it rises, they panic.That framing misses the point.The only question that matters is this:Is it moving in the right direction over time?One bad week doesn’t define you.One good week doesn’t either.Trends matter.Moments don’t.What No Device Can Tell YouNo wearable can tell you:when you’ll diewhether you’ll get cancerif you’ll have a strokehow many years you have leftAnyone claiming otherwise is selling fear — or subscriptions.Technology can guide behavior.It cannot predict destiny.New Year’s Resolutions That Actually Improve HealthspanIf you want to improve your biologic age — and more importantly, your healthspan — start here:Sleep better and more consistently.Build and maintain muscle.Move your body every day.Eat a Mediterranean-style diet.Lower stress where you can.Spend time with people you enjoy.Do those things, and most metrics improve on their own.The Bottom LineYour watch is not your destiny.Chronological age is fixed.Healthspan is not.Biologic age is adjustable, responsive, and reversible.Use it as feedback.Ignore it as prophecy.And remember — the goal isn’t to beat time.The goal is to live well while time keeps moving.ReferencesLevine ME. Modeling the rate of senescence: Can estimated biological age predict mortality more accurately than chronological age? J Gerontol A Biol Sci Med Sci. 2013.Belsky DW, et al. Quantification of biological aging in young adults. Proc Natl Acad Sci USA. 2015.Blackburn EH, Epel ES, Lin J. Human telomere biology: A contributory and interactive factor in aging, disease risks, and protection. Science. 2015.WHOOP Team. Understanding Recovery, HRV, and Physiological Load.Withings Health Institute. Longitudinal tracki

Dec 25, 20259 min
Copyright 2026 Terry Simpson