The Lipid Energy Model: Making Sense of Sky-High LDL on Low-Carb Diets | Episode 92
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Picture this: you’re lean, active, insulin-sensitive, and thriving on a low-carb lifestyle—yet your LDL cholesterol shoots past 200. Is this a sign of dysfunction, or simply a reflection of how your body fuels itself?
In this episode of The Health Pulse, we unpack the Lipid Energy Model (LEM), a framework that helps explain why some people—known as Lean Mass Hyper-Responders (LMHRs)—see dramatic LDL increases alongside very high HDL and very low triglycerides. Using clear analogies, we break down how your liver’s VLDL “freight trucks” deliver fat, leaving LDL “taxis” circulating in the bloodstream, and why this pattern tends to appear in highly active, carb-restricted individuals.
We contrast this metabolic perspective with the mainstream view that ApoB-containing particles drive atherosclerosis, highlighting why context matters. Advanced lipid testing (ApoB, LDL particle number, particle size), inflammation markers (hs-CRP, homocysteine), and metabolic health metrics (fasting insulin, glucose) all provide a richer, more personalized risk profile than LDL-C alone.
You’ll also hear about practical strategies LMHRs can test with their clinicians—like modestly reintroducing carbs (100–150g/day) to rapidly lower LDL-C without abandoning a low-carb foundation. And we spotlight ongoing research using coronary calcium scans and CT angiography to measure plaque directly in this unique population.
The takeaway? Don’t panic over a single “bad” number—gather context, verify patterns, and track trends. This episode equips you with a clear roadmap to discuss with your healthcare provider.
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Disclaimer: The information provided in this podcast is for informational purposes only and should not be considered medical advice. The content discussed is based on research, expert insights, and reputable sources, but it does not replace professional medical consultation, diagnosis, or treatment. We strive to present accurate and up-to-date information, medical research is constantly evolving. Listeners should always verify details with trusted health organizations, before making any health-related decisions. If you are experiencing a medical emergency, such as severe pain, difficulty breathing, or other urgent symptoms, call your local emergency services immediately. By listening to this podcast, you acknowledge that The Health Pulse and its creators are not responsible for any actions taken based on the content of this episode. Your health and well-being should always be guided by the advice of qualified medical professionals.
Chapters
1. Setting the Stakes: LDL Shock (00:00:00)
2. Introducing the Lipid Energy Model (00:01:05)
3. Who the Model Applies To (00:02:05)
4. From Carbs to Fat: Fuel Shift (00:03:04)
5. VLDL Remodelling Mechanics (00:03:50)
6. The LMHR Triad Profile (00:06:04)
7. Mainstream View vs LEM (00:08:33)
8. Outcomes Gap and Imaging Studies (00:10:42)
9. Beyond LDL: ApoB and Particles (00:12:03)
10. Inflammation and Insulin Sensitivity (00:14:05)
11. Personalization, Testing, and Next Steps (00:15:43)
92 episodes