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Metabolic Mind

Study Shocks Cardiologists: LDL Didn’t Predict Plaque

Apr 15, 2025
In this conversation, Dr. Matthew Budoff, a preventive cardiologist and researcher from UCLA, challenges conventional beliefs about cholesterol and heart disease. He reveals surprising findings from his study on individuals on a ketogenic diet, where elevated LDL and ApoB levels did not predict plaque progression. Some participants with LDLs over 500 showed no plaque, while existing plaque was a better indicator of risk. Dr. Budoff advocates for personalized approaches to cardiovascular risk assessment, reshaping the conversation around diet and heart health.
21:00

Podcast summary created with Snipd AI

Quick takeaways

  • The ketogenic diet may not contribute to heart disease progression despite high LDL levels, challenging traditional views on cholesterol's significance.
  • Plaque volume and baseline calcium scores are more reliable indicators of cardiovascular risk than LDL or ApoB for individuals on a ketogenic diet.

Deep dives

Impact of the Ketogenic Diet on Heart Disease

Research indicates that the ketogenic diet does not contribute to the progression of heart disease, despite high LDL levels, challenging previous assumptions about cholesterol's role in cardiovascular health. A study involving lean, metabolically healthy individuals on a keto diet showed no correlation between elevated LDL or ApoB levels and the increase in coronary artery plaque. Participants underwent CT angiograms before and after one year of following the diet, revealing stable plaque volumes, which suggests that LDL levels alone are not indicative of heart disease risk in this context. This finding emphasizes that dietary choices may not have the expected negative impact on heart health for certain individuals, sparking further discussion on dietary approaches to managing overall health.

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