LDL as a Surrogate Marker

A new meta-analysis just dropped, and once again, saturated fat takes center stage. But does the data actually support the decades-long warnings we've heard about saturated fat and heart disease? Not exactly.

In this video, Dr. Bret Scher dives deep into a recent study published in the Annals of Internal Medicine that reviewed randomized controlled trials on saturated fat intake and health outcomes.

Despite the headlines and abstract language hinting at risk, a closer look at the data reveals no statistically significant increase in heart attacks, strokes, or early death, even with modest increases in LDL.

So why the disconnect between what the data shows and what the authors claim? Dr. Scher breaks it down and explores the nuances often missing from the conversation about saturated fat, including context like food quality, carbohydrate intake, metabolic health, and lifestyle factors that make a big difference.

🔍 Key Topics Covered:

1. What this new meta-analysis actually found (vs. what it claimed)
2. The persistent bias in nutrition science and reporting
3. Why LDL isn’t the whole story
4. How dietary context, like carbs, processing, and lifestyle, matters more than saturated fat alone
5. Why focusing on whole dietary patterns is essential for metabolic health

Dr. Scher says it best, “If the medical and dietetic institutions are so certain that saturated fat is harmful, why are there so many studies that fail to reach meaningful conclusions?”

To learn more about ketogenic therapy and heart disease, check out our Is Keto Safe Topic Page for more content from cardiologist Dr. Bret Scher breaking down keto, dietary fat, saturated fat, LDL, and more.

https://www.metabolicmind.org/resources/topics/is-keto-safe/

🔎 Have questions about how to apply metabolic therapies effectively? Submit them at metabolicmind.org/questions to be featured in a future Metabolic Mailbag episode.

Expert Featured:

Dr. Bret Scher

1. Baszucki Group Medical Director
2. https://x.com/bschermd

Resources Mentioned:

Effect of Interventions Aimed at Reducing or Modifying Saturated Fat Intake on Cholesterol, Mortality, and Major Cardiovascular Events: A Risk Stratified Systematic Review of Randomized Trials

1. https://doi.org/10.7326/ANNALS-25-02229

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About us:

Metabolic Mind is a non-profit initiative of Baszucki Group working to transform the study and treatment of mental disorders by exploring the connection between metabolism and brain health. We leverage the science of metabolic psychiatry and personal stories to offer education, community, and hope to people struggling with mental health challenges and those who care for them.

Our channel is for informational purposes only. We are not providing individual or group medical or healthcare advice nor establishing a provider-patient relationship. Many of the interventions we discuss can have dramatic or potentially dangerous effects if done without proper supervision. Consult your healthcare provider before changing your lifestyle or medications.