Stewart Lonky, MD

Physician 👨‍⚕️ | Author & Blogger | Speaker | Expert on Environmental 🌿 Obesity Causes | Pulm. Med, IM, Crit. Care | CME & AME | #MedTwitter | No DMs Please

[Stewart Lonky, MD @LonkyMD]

📚 Exciting News! 📚 I just received the first copy of my new book, Outsmarting Obesity: A Doctor Reveals Why We Gain Weight, Why It Matters, and What We Can Do About It—hot off the press from my publisher. 🎉 Preorder your copy today at https://t.co/tOVTkpqTnM. 📖✨

[Stewart Lonky, MD @LonkyMD]

1) Pollution Rewrites Our Biology: Fossil fuel toxins trigger prenatal health changes. What if a mom’s air alters her baby’s gene blueprint? Emerging science says YES. Backed by the Cradle to Grave report (2025). #Epigenetics #CleanAir
https://t.co/8GZrzEEZ29
@GCHAlliance

[Stewart Lonky, MD @LonkyMD]

Let’s be clear: the notion that you can be “healthy at every size” is an insidious fairy tale that willfully ignores decades of medical evidence and the basic laws of human physiology.

[Stewart Lonky, MD @LonkyMD]

5) Takeaway: fat diversity matters. The idea that a single fat source is universally protective is becoming harder to defend. Click the link for the full study: https://t.co/eKpjg19jP8

[Stewart Lonky, MD @LonkyMD]

Olive oil just got a complicated footnote. A new @CD_AACR study found that oleic acid, the MUFA behind olive oil's health reputation, significantly accelerated pancreatic tumor growth in mice. PUFAs (fish oil, walnuts, flaxseed) did the opposite. Here's what's actually going on. 🧵

[Stewart Lonky, MD @LonkyMD]

4) The authors call it a foundation for "precision nutrition" in PDAC prevention. Given that pancreatic cancer kills ~90% of patients within 5 years, any modifiable risk factor worth studying is worth talking about.

[Stewart Lonky, MD @LonkyMD]

Once people develop obesity, we have no evidence that the neurohormonal and immunologic changes are reversible, even with weight reduction.

If the 50 percent obesity rate in the US in just seven years doesn't serve as a wake-up call, then I doubt anything will.

[Stewart Lonky, MD @LonkyMD]

New study: 11 million surgical cases, 17 years of data

Finding: the higher the BMI, the fewer operations performed over time, not more, even as extreme obesity rates rose.

Patients with a BMI of 70+ saw the steepest decline of any group.

This is a systems failure with real consequences for disease progression and survival.

Full study: https://t.co/6dYyP2mwPG

@WileyGlobal

[Stewart Lonky, MD @LonkyMD]

👶📏 Childhood Belly Fat: The Risk Hiding in Plain Sight
We’ve been watching the wrong number.
Most pediatricians focus on BMI to monitor childhood obesity.

[Stewart Lonky, MD @LonkyMD]

The Epigenetic Link: Rethinking the Heritability of Obesity
Imagine if the legacy of your lifestyle could rewrite your children’s biology—even if your DNA remains unchanged.

[Stewart Lonky, MD @LonkyMD]

1) Is your heart older than you think it is? 🫀
A massive new study shows that where you store fat—not just how much—predicts cardiovascular aging. BMI may miss hidden risks.
🔗 Study: https://t.co/fRMLNECIk2
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Key takeaways:

[Stewart Lonky, MD @LonkyMD]

Weight Loss Drugs: The Rebound Effect That's Shaking Up Obesity Treatment

Imagine shedding pounds with meds like semaglutide, only to regain them weeks after stopping.

[Stewart Lonky, MD @LonkyMD]

"Once people develop obesity, we have no evidence that the neurohormonal and immunologic changes are reversible, even with weight reduction."

If the 50 percent obesity rate in the US in just seven years doesn't serve as a wake-up call, then I doubt anything will.

[Stewart Lonky, MD @LonkyMD]

6/ Junk food is still junk food. But the science says we need to understand the mechanism before we make ultraprocessing itself a primary dietary policy target.

Full study: https://t.co/ANGXJxnug8

[Stewart Lonky, MD @LonkyMD]

Is "ultraprocessed" the problem, or are we blaming the label instead of the nutrients? A new analysis in @NewsfromScience says the evidence is weaker than you think. 🧵

[Stewart Lonky, MD @LonkyMD]

5/ For consumers: read the nutrition facts, not the category. High fiber, low sodium, adequate protein. Those numbers tell you what the food actually does.