GLP-1 Deep Dive SeriesEp 3 of 4
The Velvet Rope Of Weight Loss Drugs

Hosted by Sarah Gellar & Marcus Webb

0:000:00
Flashcards
Transcription
Sarah Gellar

So right now, um, a medication that fundamentally rewires human metabolism costs like $1,300 a month here in the US.

Marcus Webb

This is astronomical, yeah.

Sarah Gellar

Right. But, and this is the crazy part, in lower income countries, the exact same molecule is being licensed to be manufactured for about $2 a month.

Marcus Webb

Yeah, $2. It's a massive, massive gap.

Sarah Gellar

It really is. So, welcome to this deep dive, everyone. Today we are looking at a huge stack of medical policy reviews, uh, clinical discussions, health equity reports, and it's all covering GLP-1 drugs.

Marcus Webb

Specifically semaglutide, which, you know, you probably know is Ozempic or Wegovy, and also tirzepatide.

Sarah Gellar

Exactly. And, you know, you already know these drugs melt away weight. They that's everywhere in the news.

Marcus Webb

Right, everyone's heard about that.

Sarah Gellar

Yeah. But the real story, buried in our sources today, isn't just about how they work in the body, it's about who actually gets them.

Marcus Webb

And who gets left behind.

Sarah Gellar

Exactly. Who is systemically blocked from accessing them? We're looking at the massive hurdles standing in the way of what is essentially a biological revolution.

Marcus Webb

Because, um, understanding the clinical data, that's really only half the picture here.

Sarah Gellar

Right.

Marcus Webb

We have this biological breakthrough that is essentially trapped behind a velvet rope.

Sarah Gellar

Well, that's a good way to put it.

Marcus Webb

Yeah. And if we don't understand the mechanisms of that restriction, you know, the supply chains, the economics, the insurance policies, then we don't actually understand the reality of this medication out in the world.

Sarah Gellar

So that is our mission for you on this deep dive. We want to decode that complex web. We're going to look at how a genuine scientific miracle becomes, well, a logistical and access nightmare.

Marcus Webb

Yeah, it's a total maze.

Sarah Gellar

It really is. And to even begin to understand the fight to get these medications, we actually have to start by looking at what happens when patients are forced to stop taking them.

Marcus Webb

Right, because that withdrawal process fundamentally redefines what kind of drugs these are in the first place.

Sarah Gellar

So let's talk about the global supply shortages, the ones that hit between uh 2022 and 2024.

Marcus Webb

Yeah, which gave us some incredible, albeit totally unintentional, real-world data.

Sarah Gellar

Because demand for semaglutide just skyrocketed so fast.

Marcus Webb

Exactly. It completely outstripped the manufacturer's capacity.

Sarah Gellar

I mean, patients had gone through this difficult weeks-long process of titrating their dose.

Marcus Webb

Which means gradually stepping up the medication so their GI tract could actually adjust to it.

Sarah Gellar

Right, so they do all that hard work and then suddenly they're showing up at the pharmacy and finding out the supply is just completely dry.

Marcus Webb

Yeah, which sets up a really fascinating, though forced, clinical trial. You know, if a patient abruptly loses access to a GLP-1 agonist, what happens biologically?

Sarah Gellar

And the sources have data on this, right?

Marcus Webb

They do. The step four withdrawal trial answers this pretty definitively.

Sarah Gellar

Okay, break that down for us.

Marcus Webb

So researchers put a group of patients on semaglutide for 68 weeks.

Sarah Gellar

That's over a year.

Marcus Webb

Right. And during that initial phase, the patients lost about 10% of their total body weight.

Sarah Gellar

Which is huge for cardiovascular risk, right?

Marcus Webb

Massive reduction in cardio arrest, joint strain, all of it. But then, they switched a portion of those patients over to a placebo.

Sarah Gellar

Just cut them off the real drug.

Marcus Webb

Yeah. And within 52 weeks, those patients on the placebo regained two-thirds of the weight they had lost.

Sarah Gellar

Wow. Two-thirds. So the weight rushes back almost immediately.

Marcus Webb

What's fascinating here is what this tells us about biology, because it's not just, um, a behavioral shift where someone suddenly decides to start overeating again.

Sarah Gellar

Right. Let's impact this. Why does that happen?

Marcus Webb

Well, when you administer a GLP-1 drug, you're introducing a synthetic hormone that crosses into the brain.

Sarah Gellar

The hypothalamus.

Marcus Webb

Exactly. And it tells the body it's full. It modulates your energy homeostasis. But your body has a biological set point.

Sarah Gellar

Like a baseline weight.

Marcus Webb

Right, a baseline it fiercely defends. If you lose weight quickly, your brain perceives that as starvation.

Sarah Gellar

Oh, wow. So it goes into panic mode.

Marcus Webb

Yes. So when you remove the GLP-1 medication, you're pulling away the shield that was blocking that starvation signal.

Sarah Gellar

So the brain just sounds the alarm. I like to think of this like, think of the body's set point like a thermostat in a house.

Marcus Webb

Okay, I like that.

Sarah Gellar

So you set the thermostat to 75 degrees, right? But you bring in this massive industrial air conditioner, which is the GLP-1,

Marcus Webb

Right.

Sarah Gellar

And you cool the house down to 65, the house feels great. But that thermostat on the wall is still desperately trying to heat the place back up.

Marcus Webb

Exactly.

Sarah Gellar

So the moment you unplug that air conditioner, the furnace just kicks into overdrive and all the heat rushes back in.

Marcus Webb

That is a perfect analogy. The underlying metabolic drive to return to the higher weight was never cured, it was only being overridden.

Sarah Gellar

Which proves obesity isn't just a moral failing, like people say.

Marcus Webb

No, it completely dismantles that idea. It proves obesity is a biological reality. The rebound is pure, unavoidable biology.

Sarah Gellar

Okay, but pushing back a bit here. If the supply dried up, didn't people just find workarounds? Like if they knew the weight was coming back, they wouldn't just sit there and accept an empty pharmacy.

Marcus Webb

Well, human resourcefulness definitely kicked in, but it drove patients into a very dangerous secondary market.

Sarah Gellar

You're saying about compounding, right?

Marcus Webb

Yes. We saw a massive rise in compounded semaglutide and tirzepatide.

Sarah Gellar

Right, because the FDA approved drugs were on the official shortage list. So these regulatory loopholes allowed unauthorized compounding pharmacies to basically try and recreate the medications.

Marcus Webb

Exactly, using raw pharmaceutical ingredients.

Sarah Gellar

But I want to pause on that because, you know, compounding sounds very official. It sounds like a friendly local pharmacist just mixing up a recipe in the back room.

Marcus Webb

Yeah, but we're dealing with complex biological therapies here. This isn't cough syrup.

Sarah Gellar

Right.

Marcus Webb

These are synthetic peptide chains. Manufacturing them requires highly specialized, incredibly sterile environments.

Sarah Gellar

Which I'm guessing these compounders didn't have.

Marcus Webb

I mean, they fundamentally lack the rigorous multi-million dollar quality controls of the FDA approved manufacturing lines.

Sarah Gellar

Wow.

Marcus Webb

It actually escalated to the point where the FDA had to issue severe warning letters.

Sarah Gellar

Wait, really? Over what?

Marcus Webb

Well, they found compounders using salt forms of the molecule like semaglutide sodium.

Sarah Gellar

And is that bad?

Marcus Webb

It's completely unstudied in humans. The approved drug uses the base molecule, not the salt form.

Sarah Gellar

So desperate patients were basically injecting themselves with unverified, potentially contaminated chemicals.

Marcus Webb

Yeah, they were forced to weigh the absolute certainty of biological weight regain against the clinical roulette of an unauthorized compound.

Sarah Gellar

That's terrifying.

Marcus Webb

And reports just flooded in of serious adverse events, largely due to incorrect dosing.

Sarah Gellar

Oh, because the official pens pre-measure it for you.

Marcus Webb

Exactly. The official pens measure out these precise microdoses, but with compounders, patients were often just given a vial and a syringe.

Sarah Gellar

Oh, no. And they had to draw it up themselves.

Marcus Webb

Yes, and that led to massive accidental overdoses of a drug that severely delays gastric emptying.

Sarah Gellar

So, okay, the first major takeaway for you listening is that our entire health infrastructure needs to rethink these medications.

Marcus Webb

Absolutely.

Sarah Gellar

Health systems have to plan for these drugs not as acute short-term diets, but as a lifelong chronic disease supply chain.

Marcus Webb

Because if it's lifelong, that brings up the next massive systemic hurdle.

Sarah Gellar

Paying for it.

Marcus Webb

Right. If you have to take this medication indefinitely to keep that biological thermostat in check, how do you afford it?

Sarah Gellar

Which exposes just a glaring flaw in how our healthcare system views obesity. Let's talk about the price tag. In the US, the list price for Wegovy sits at roughly $1,300 a month.

Marcus Webb

$1,300 out of pocket every single month forever.

Sarah Gellar

Which means access is almost entirely dictated by insurance. And the sources highlight this infuriating dynamic that I've been calling the Ozempic versus Wegovy paradox.

Marcus Webb

It is easily one of the most defining and frustrating features of the current prescribing landscape.

Sarah Gellar

Okay, let's lay out the mechanics of this paradox for everyone. Ozempic and Wegovy are the exact same molecule, right?

Marcus Webb

Yes, semaglutide.

Sarah Gellar

Manufactured by the exact same company.

Marcus Webb

Yeah.

Sarah Gellar

The only difference is the branding on the pen.

Marcus Webb

That's it.

Sarah Gellar

So, if a patient goes to the doctor with a diagnosis of type 2 diabetes, the doctor prescribes Ozempic. And commercial insurance plans in the US will generally cover it. But if that exact same patient goes to the doctor with a diagnosis of obesity, the doctor prescribes Wegovy, and the insurance company will often just flat out deny the claim.

Marcus Webb

Yep. Same molecule, same patient, completely different financial reality just based on the diagnostic code.

Sarah Gellar

That's insane. Why does that happen?

Marcus Webb

If we connect this to the bigger picture, this coverage gap is not rooted in clinical evidence. I mean, the cardiovascular benefits of treating obesity are undeniable.

Sarah Gellar

So it's something else.

Marcus Webb

It's built on decades of historical cultural baggage. The medical and insurance establishments have long harbored this bias that treats obesity as a lifestyle choice.

Sarah Gellar

Ah, like it's a lack of discipline.

Marcus Webb

Exactly, that it should be solved by diet and exercise rather than recognizing it as a complex chronic metabolic disease.

Sarah Gellar

Wow, so that prejudice is quite literally written into the insurance algorithms.

Marcus Webb

It is. And we see that bias at the federal level too. Historically, Medicare in the US, which covers over 60 million people, has explicitly banned coverage for anti-obesity medications by law.

Sarah Gellar

Right. Though the sources do note we're starting to see some cracks in that wall heading into 2025.

Marcus Webb

Yes, the Inflation Reduction Act is allowing Medicare to negotiate some drug prices, and there's proposed legislation like the Treat and Prevent Act trying to carve out pathways.

Sarah Gellar

But the historical block has been massive. And it's not strictly an American phenomenon either.

Marcus Webb

No, look at a completely different health system like the UK.

Sarah Gellar

Right, the NHS.

Marcus Webb

Yeah. So the National Institute for Health and Care Excellence, NICE, officially recognized the clinical value and approved semaglutide for obesity back in 2023.

Sarah Gellar

Good news, right?

Marcus Webb

Well, the NHS then had to severely restrict access. They routed it only through specialized weight management services with a very, very tight rollout.

Sarah Gellar

Simply because of the math.

Marcus Webb

The math is terrifying for a state-funded system. In the UK, roughly 30% of adults live with obesity.

Sarah Gellar

Which is over 15 million people.

Marcus Webb

Right. Even if the NHS restricted the drug only to the most severe cases, you're still looking at millions of eligible patients.

Sarah Gellar

And at current market prices, absorbing that cost would functionally bankrupt the health system.

Marcus Webb

Exactly.

Sarah Gellar

Which brings up a very pointed question. Is $1,300 a month really just the cost of doing groundbreaking science?

Marcus Webb

That's the big question.

Sarah Gellar

Like are these biologics so difficult to synthesize that the price is justified by the manufacturing alone?

Marcus Webb

The data provides a very clear answer to that. And it's no.

Sarah Gellar

Right, because the sources highlight that generic oral semaglutide has been licensed for non-commercial production in low-income countries.

Marcus Webb

Yes, through an organization called the Medicines Patent Pool.

Sarah Gellar

And the cost to manufacture that generic version?

Marcus Webb

Between one and two dollars per month.

Sarah Gellar

One and two dollars. So we have a medication that costs $1,300 a month in the US, but can be produced for $2 a month in lower income countries.

Marcus Webb

It completely changes the narrative. It means the financial barrier isn't a scientific necessity, it's a market pricing strategy.

Sarah Gellar

It's purely a business decision. They price drugs based on what a specific market will bear.

Marcus Webb

Factoring in, you know, the immense cost of the initial R&D and clinical trials, sure. But the consequence of that pricing is the creation of a massive health equity divide.

Sarah Gellar

Right, the sources refer to it as an equity accelerant. Yeah. Let's look at who is actually getting these prescriptions right now.

Marcus Webb

The highest uptake is among patients who are white, have higher disposable incomes, carry premium commercial insurance, and live in urban centers.

Sarah Gellar

Where they have access to specialized obesity medicine clinics.

Marcus Webb

Exactly. And conversely, the lowest uptake is among black and Hispanic populations, lower income patients, and people living in rural healthcare deserts.

Sarah Gellar

And the tragic irony there is that those are the exact populations suffering from the highest rates of obesity and severe cardiometabolic disease.

Marcus Webb

Yes. So the wealthy insured patients get access to this biological miracle. They lose weight, their joints recover, their cardiovascular risk plummets.

Sarah Gellar

Meanwhile, the patients bearing the heaviest burden of disease are just locked out.

Marcus Webb

Locked out by the $1,300 price tag. The baseline inequality of our health system doesn't just persist, it violently accelerates.

Sarah Gellar

It creates this bifurcated society where biological health becomes a luxury commodity.

Marcus Webb

And the people forced to navigate the front lines of this disparity every single day are the prescribers.

Sarah Gellar

Yeah, let's talk about the doctors. With the skyrocketing demand and tight coverage, the ultimate burden falls squarely onto the shoulders of everyday doctors who have to act as gatekeepers.

Marcus Webb

And they are navigating a profound ethical dilemma.

Sarah Gellar

Because the official prescribing criteria are rigid, right?

Marcus Webb

Very rigid. A patient needs a body mass index of 30 or higher, or a BMI of 27 if they also have at least one weight-related comorbidity.

Sarah Gellar

Like hypertension, sleep apnea, or type 2 diabetes.

Marcus Webb

Right. And lowering the threshold to 27 for patients with comorbidities was a crucial step in broadening access. But bodies do not perfectly conform to strict numerical cutoffs.

Sarah Gellar

Right, so that creates some agonizing borderline cases.

Marcus Webb

It does. Picture a patient sitting on the exam table with a BMI of 26.5.

Sarah Gellar

By the chart, they don't qualify.

Marcus Webb

No. But say they're suffering from severe debilitating osteoarthritis in their knees driven by their weight.

Sarah Gellar

Or, what about a patient with a BMI of 28? They don't have high blood pressure yet, but they have crippling clinical depression driven entirely by body image struggles.

Marcus Webb

Exactly. The doctor knows unequivocally that this GLP-1 therapy would drastically improve their quality of life. But the approved indication says no.

Sarah Gellar

This raises an important question about the ethics of the consultation room.

Marcus Webb

It forces the physician into a terrible position. Ethically, a doctor must inform the patient about treatment supported by clinical evidence.

Sarah Gellar

But practically, it's deeply frustrating to recommend a therapy that you know the patient's insurance will deny and they can't afford it out of pocket.

Marcus Webb

You have highly trained clinicians forced to ration care based on arbitrary administrative cutoffs rather than actual biological need.

Sarah Gellar

It's an impossible position. And here's where it gets really interesting. The pressure on these doctors is only multiplying because the frontier of GLP-1s is rapidly expanding beyond just weight loss.

Marcus Webb

The off-label demand is surging.

Sarah Gellar

Right. Patients are reading the research and coming into clinics asking for these drugs for entirely different conditions.

Marcus Webb

And the clinical signals emerging from these off-label uses are fascinating. For instance, we're seeing GLP-1s prescribed for polycystic ovary syndrome or PCOS.

Sarah Gellar

Oh, because of how intricately the drug manages insulin resistance.

Marcus Webb

Exactly, which is a core driver of ovarian dysfunction in those patients.

Sarah Gellar

But the one that really caught my eye in the sources is addiction. Specifically, alcohol use disorder.

Marcus Webb

Yes.

Sarah Gellar

How does a gut hormone that makes you feel full somehow stop you from wanting to drink?

Marcus Webb

It comes down to neurology. GLP-1 receptors don't just exist in the gut and the hypothalamus, they are also present in the brain's mesolimbic pathway.

Sarah Gellar

Which is the primary reward center.

Marcus Webb

Right. When someone with alcohol use disorder drinks, they get a massive reinforcing spike of dopamine. GLP-1 agonists appear to blunt that dopamine release.

Sarah Gellar

It's like turning down the volume on a song you used to love. You take a drink and the neurological reward simply isn't there anymore.

Marcus Webb

Which could completely revolutionize addiction medicine.

Sarah Gellar

Unbelievable. But the sources highlight another off-label condition that's moving way past just early signals, right? MASH.

Marcus Webb

Yes, MASH. It stands for metabolic dysfunction associated steatohepatitis, formerly known as NASH.

Sarah Gellar

This is a severe form of fatty liver disease.

Marcus Webb

Correct. The Essence trial recently evaluated semaglutide's effect on patients with MASH, and they found highly significant improvements in liver histology.

Sarah Gellar

Let's translate liver histology for everyone listening. What is actually happening inside the organ?

Marcus Webb

Well, histology refers to the microscopic structure of the tissues. In MASH, the liver is essentially suffocating in excess fat droplets, which leads to inflammation and scarring, known as fibrosis.

Sarah Gellar

And what does the drug do?

Marcus Webb

The GLP-1 medication improves systemic insulin sensitivity, which stops the body from storing excess glucose as visceral fat.

Sarah Gellar

Oh, wow.

Marcus Webb

The trial showed the drug literally clearing the fat out of the liver cells and preventing or even reversing the dangerous scarring.

Sarah Gellar

And this is massive because MASH affects an estimated 15 million people in the US. And right now there is zero FDA approved pharmacotherapy for it.

Marcus Webb

Zero. So if this data leads to a regulatory filing, you suddenly have 15 million more desperate patients clamoring for a drug that is already in shortage and rarely covered.

Sarah Gellar

And the responsibility for managing this tidal wave falls almost entirely on primary care physicians.

Marcus Webb

Right. Historically, obesity medicine, addiction medicine, and hepatology were highly specialized niches.

Sarah Gellar

Now, your everyday family doctor is the one expected to manage this incredibly complex landscape. It sounds like asking your local mechanic to suddenly tune up a Formula 1 car.

Marcus Webb

That is a very apt way to look at it. They are highly skilled, but this requires an entirely different layer of operational knowledge. A primary care doctor isn't just handing out a prescription for weight loss anymore. They're suddenly expected to manage intricate titration protocols so the patient doesn't end up in the ER with severe gastrointestinal distress.

Sarah Gellar

Plus, they have to synthesize complex cardiovascular outcomes, monitor renal function, and deal with all those compounding pharmacy risks we talked about.

Marcus Webb

And the stark reality is that most medical school curricula historically offered almost zero comprehensive training in clinical obesity medicine.

Sarah Gellar

Man, that's just a recipe for burnout. So if you're listening to this, let's synthesize all these threads together.

Marcus Webb

Okay.

Sarah Gellar

We started our deep dive looking for the story of a medical breakthrough, and the biology absolutely delivered. GLP-1 agonists are quite literally rewiring our understanding of human metabolism and the brain's reward centers.

Marcus Webb

They prove that obesity is a biological reality, not a behavioral flaw.

Sarah Gellar

But the clinical reality is that these are not quick fixes. They are lifelong interventions.

Marcus Webb

And currently, that lifelong intervention is trapped behind a towering wall.

Sarah Gellar

A wall built of inequitable insurance policies, $1,300 market pricing, historical biases, and the very real dangers of unregulated compounded alternatives.

Marcus Webb

The patients who need this biological intervention the most are systematically the least likely to get it.

Sarah Gellar

It really is the velvet rope of modern medicine. But before we finish, there is one final detail buried deep in the policy reviews that I want to leave you with.

Marcus Webb

Oh, the patent expiration.

Sarah Gellar

Yes. We talked about how these drugs cost $1,300 in the US today, but only a couple of dollars to physically manufacture. Well, semaglutide's core patents are set to begin expiring around 2032.

Marcus Webb

Which is going to completely change the global landscape. It opens the door for generic and biosimilar competition worldwide.

Sarah Gellar

Exactly. So I want you to mull this over on your own. We have spent this entire deep dive examining a world where this medication is a luxury, heavily restricted by cost and systemic barriers.

Marcus Webb

Right.

Sarah Gellar

But what happens in a decade? If a drug that safely, biologically turns off the human desire to overeat, drops from a luxury good to a $2 generic commodity available to anyone on Earth.

Marcus Webb

It's hard to even fathom.

Sarah Gellar

How will that suddenly reshape our healthcare systems, our global economy, and our deeply complicated relationship with food forever?

More from: GLP-1 Deep Dive Series

Rewiring The Brain To Silence Food NoiseEndocrinology

Rewiring The Brain To Silence Food Noise

GLP-1 receptor agonists do far more than lower blood glucose — they reshape the brain's reward response to food, suppress appetite at the hypothalamic level, and slow gastric emptying. Sarah Mitchell and James Carter explain the neuroscience behind the most transformative class of drugs in a generation.

GLP-1 Drugs Protect Hearts And KidneysEndocrinology

GLP-1 Drugs Protect Hearts And Kidneys

SELECT, LEADER, SUSTAIN-6, STEP-HFpEF — GLP-1 receptor agonists have accumulated cardiovascular and renal outcomes data that most drug classes can only aspire to. Sarah Mitchell and James Carter examine why these drugs are now being prescribed by cardiologists and nephrologists as well as endocrinologists.

The GLP-1 Muscle Loss DilemmaEndocrinology

The GLP-1 Muscle Loss Dilemma

GLP-1 receptor agonists drive significant lean mass loss alongside fat loss — a concern that may undermine long-term metabolic health and physical function. Sarah Mitchell and James Carter examine the muscle loss evidence, the role of resistance training, and emerging strategies to preserve lean tissue during weight loss.

ART-2026-191

07/26

Save as PDF

Reviewed & published by
Sarah Gellar
Cite This Article

Gellar S. The velvet rope of weight loss drugs. The Life Science Feed. Published May 28, 2026. Updated July 9, 2026. Accessed July 12, 2026. https://thelifesciencefeed.com/endocrinology/obesity/insights/the-velvet-rope-of-weight-loss-drugs.

Editorial & AI Standards

All content is researched from peer-reviewed, open-access sources: published trial data, clinical guidelines, and regulatory filings. AI tools are used solely to structure and summarise that evidence; no AI-generated conclusions appear without editor verification against the primary source.

Every article is reviewed by a named editor before publication. Source citations are listed in the References section. This content does not represent the views of any pharmaceutical company, medical device manufacturer, or healthcare provider.

Licence & Rights

© 2026 The Life Science Feed. All rights reserved. Unless otherwise indicated, all content is the property of The Life Science Feed and may not be reproduced, distributed, or transmitted in any form or by any means without prior written permission.

Podcast Disclaimer

This podcast is produced for educational and informational purposes only. The conversation between hosts represents a discussion of published clinical evidence and is not intended as clinical advice, a substitute for professional medical judgment, or a recommendation for any specific treatment. Healthcare professionals should rely on their own clinical training, current guidelines, and individual patient assessment when making treatment decisions. The views expressed are those of the hosts and do not constitute endorsement of any specific therapy, product, or manufacturer.

References

1. Rubino DM, Greenway FL, Khalid U, et al. Effect of weekly subcutaneous semaglutide vs daily liraglutide on body weight in adults with overweight or obesity without diabetes (STEP 8). *JAMA*. 2022;327(2):138–150. https://doi.org/10.1001/jama.2021.23619

2. Wilding JPH, Batterham RL, Davies M, et al. Weight regain and cardiometabolic effects after withdrawal of semaglutide (STEP 4). *Diabetes Obes Metab*. 2022;24(8):1553–1564. https://doi.org/10.1111/dom.14725

3. Sheahan KH, Wahlberg EA, Gilbert MP. An overview of GLP-1 agonists and recent cardiovascular outcomes trials. *Postgrad Med J*. 2020;96(1133):156–161. https://doi.org/10.1136/postgradmedj-2019-137186

4. Cosentino F, Grant PJ, Aboyans V, et al. 2019 ESC guidelines on diabetes, pre-diabetes, and cardiovascular diseases. *Eur Heart J*. 2020;41(2):255–323. https://doi.org/10.1093/eurheartj/ehz486

5. Seibert SM, Wood S, Baum SJ, et al. Misperceptions of obesity: people with obesity have excess adiposity — not merely high body weight. *JAMA*. 2021;326(18):1843–1844. https://doi.org/10.1001/jama.2021.17486

6. Ward ZJ, Bleich SN, Cradock AL, et al. Projected U.S. state-level prevalence of adult obesity and severe obesity. *N Engl J Med*. 2019;381(25):2440–2450. https://doi.org/10.1056/NEJMsa1909301

7. Dieleman JL, Squires E, Bui AL, et al. Factors associated with increases in US health care spending, 1996–2013. *JAMA*. 2017;318(17):1668–1678. https://doi.org/10.1001/jama.2017.15927

8. Cani PD, Knauf C. How gut microbes talk to organs: the role of endocrine and nervous routes. *Mol Metab*. 2016;5(9):743–752. https://doi.org/10.1016/j.molmet.2016.05.011

9. Harrison SA, Bedossa P, Guy CD, et al. A phase 3, randomized, controlled trial of resmetirom in NASH with liver fibrosis (MAESTRO-NASH). *N Engl J Med*. 2024;390(6):497–509. https://doi.org/10.1056/NEJMoa2309000