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110: Why Does Eating Too Many Carbohydrates Cause Heart Attacks
Manage episode 457103598 series 3559830
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In this episode, Dr. Steve breaks down the real causes of heart disease, debunking the myth that high LDL cholesterol is the culprit. He explains how small, dense LDL particles, chronic inflammation, and a diet high in processed carbs and sugars lead to arterial damage and plaque buildup. He also shares how to interpret your lipid panel, why the triglyceride-to-HDL ratio matters, and the importance of a nutrient-rich diet with animal fats and proteins for better health.
[00:01 - 09:17] Heart Attack Myths
High LDL cholesterol doesn't cause heart attacks—LDL transports cholesterol and triglycerides.
Excess carbs convert to glucose, leading to fat storage as triglycerides.
Overproduction of triglycerides creates harmful small, dense LDL particles.
Small, dense LDLs stay longer in the bloodstream, increasing risks.
Glycation from high glucose damages proteins and arteries.
[09:18 - 13:21] Carbs and Atherosclerosis
High-carb diets flood the bloodstream with glucose.
Excess glucose is stored as fat, overwhelming the liver.
Chronic high insulin leads to resistance and blood sugar issues.
Glycation damages LDLs and arterial walls.
Long-term high glucose drives atherosclerosis progression.
[13:22 - 21:10] The Inflammation Link to Heart Disease
Processed foods cause inflammation, damaging LDLs, and arteries.
High-carb diets weaken arterial lining, letting LDLs penetrate walls.
Free radicals from carbs worsen LDL and vessel damage.
Damaged LDLs form foam cells, narrowing arteries.
Foam cells cause clots and block blood flow, leading to heart attacks.
[21:11 - 25:37] What is Plaque and How it Forms
Plaque forms as a repair response, containing cholesterol, fatty acids, waste, calcium, and fibrin.
High glucose and small LDLs damage arteries, causing stiffness and tears.
LDLs deliver cholesterol to repair arterial walls, aiding the healing process.
High LDL isn’t the cause but a repair agent for damaged arteries.
Chronic damage from carbs and toxins keeps driving plaque buildup.
[25:38 - 34:00] Key Takeaways for Understanding Cardiovascular Health
A ratio below 2 (ideally 1) indicates fewer harmful small, dense LDLs.
High-carb diets increase harmful small LDL particles, while healthy fats boost protective HDL.
High LDL isn’t the cause of heart disease—small, dense LDL and inflammation are.
Statins lower cholesterol but may harm your body’s cells and overall health.
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Tweetable Quotes:
“This isn't cholesterol causing any of this. It's the small dense LDL particle that is causing all this damage. And it's small dense because of all the carbohydrates that you eat that get turned into triglycerides.” - Dr. Steve Hughlett
“It's not from the plaque breaking off that cause cardiovascular disease. It's from the foam cells causing the decrease in the lumen of blood vessels, which decreases blood flow plus clot formation.” - Dr. Steve Hughlett
“The more glucose that attaches to the protein in red blood cells, the higher your A1c is and this is called glycation.” - Dr. Steve Hughlett
“It has been shown that when you eat carbohydrate, a high carbohydrate meal, you actually damage this glycocalyx and these velvet lining shrinks, shrivels up to practically nothing. And so they can't protect the arterial walls anymore.” - Dr. Steve Hughlett
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