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Curated by: Ben Bikman (139 videos)
📢 Ask Dr. Bikman’s Digital Mind: https://benbikman.com/ben-bikmans-digital-ai-mind In this Metabolic Classroom lecture, Dr. Bikman dives into the central metabolic role of lipoprotein lipase (LPL)—a largely unsung but crucial enzyme that governs whether fat is burned or stored and even where it accumulates in the body. LPL is anchored to capillary walls in tissues like fat, muscle, heart, and lactating mammary glands. It acts as a metabolic gatekeeper, hydrolyzing triglycerides from circulating lipoproteins (like chylomicrons and VLDL) into free fatty acids. Depending on the tissue, those fatty acids are either burned (e.g., in muscle) or stored (e.g., in fat cells). LPL activity is influenced by hormones, diet, age, exercise, and weight status, and it plays a role in both fat distribution and metabolic disease. LPL expression is highly tissue-specific and hormonally regulated. For instance, insulin increases LPL in fat tissue (promoting fat storage) and suppresses it in muscle (reducing fat burning), whereas testosterone suppresses LPL in subcutaneous fat, especially in the buttocks and hips—explaining fat patterning differences between sexes. In contrast, estrogen increases LPL in subcutaneous areas, which supports healthier fat distribution in women. Interestingly, low-carb diets and exercise reverse this pattern, increasing muscle LPL and decreasing fat LPL, thus shifting the body into a fat-burning mode. Ben also explains how weight loss impacts LPL expression. During weight loss, LPL activity in fat tissue tends to decline, but LPL gene expression can paradoxically increase, setting the stage for weight regain. He cites long-term studies showing that individuals with higher adipose LPL activity after dieting are more likely to regain fat. LPL in muscle tissue, however, increases after weight loss and exercise, supporting greater fatty acid oxidation. Finally, Ben links LPL to real-world clinical questions, including its role in insulin resistance, statin effects, thyroid hormone therapy, and sex hormone treatments like TRT. He emphasizes that LPL doesn’t just respond to metabolism—it helps define it, and that insulin is the dominant regulator of this enzyme. Show Notes/References: For complete show notes and references, we invite you to become an Insider subscriber. You’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A after the lecture with Ben, ad-free podcast episodes, show notes and references, online Office Hours access, Ben’s Research Reviews Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com Translation Notes: You can click the gear icon at the bottom of this video to auto-translate captions. For example, to translate into Polish, select Subtitles, choose Auto-Translate, then first choose English, then choose Auto-Translate again, then choose Polish.) In addition, our channel has first access to YouTube’s new, innovative “auto-dubbing” feature. The process currently supports translations from English into French, German, Hindi, Indonesian, Italian, Japanese, Portuguese, and Spanish. Click on the gear icon, then choose “Audio track” to access. #LipoproteinLipase #LPL #FatStorage #FatBurning #InsulinResistance #LowCarbDiet #ExerciseScience #WeightLoss #MetabolicHealth #FatDistribution #DrBenBikman #KetogenicDiet #MuscleMetabolism #SubcutaneousFat #VisceralFat #HormonalHealth #TRT #ThyroidHealth #Mitochondria #FatMetabolism Timestamps (approximate): 01:02 – What Is LPL and Where Does It Work? 03:19 – How LPL Processes Triglycerides 04:21 – Chylomicrons vs VLDL: Dietary vs Liver-Derived Fat 05:30 – LPL: Storage vs Burning of Fat 07:47 – Estrogen, Testosterone, and LPL in Teens 08:52 – Insulin’s Tissue-Specific Impact on LPL 11:12 – How Carbs Alone Trigger Fat Storage via LPL 12:10 – LPL on a Low-Carb Diet: Increased Fat Burning in Muscle 13:14 – What Happens to LPL During Weight Loss? 15:22 – Weight Regain and Elevated Adipose LPL Activity 18:56 – Thyroid Hormone and LPL Activity 20:10 – Ketogenic Diets and Species-Specific LPL Research 21:10 – Final Summary: LPL as the Fat Gatekeeper 📢 Learn more about becoming an Insider on Ben’s website: https://www.benbikman.com Ben’s favorite yerba maté and fiber supplement: https://ufeelgreat.com/usa/en/c/1BA884 Ben’s favorite meal-replacement shake: https://gethlth.com (discount: BEN10) Ben’s favorite electrolytes (and more): https://redmond.life (discount: BEN15) Ben’s favorite allulose source: https://rxsugar.com (discount: BEN20) Ben’s favorite health check-up for women: https://choosejoi.co/drben15 (discount: DRBEN15) Ben’s favorite health check-up for men: https://blokes.co/drben15 (discount: DRBEN15) Ben’s favorite exogenous ketone: https://ketone.com/BEN30 (discount: BEN30) Other products Ben likes: https://www.amazon.com/shop/benbikmanphd