Office Hours: Cholesterol and Heart Disease — What I’ve Changed My Mind About

The Dr. Hyman Show

Dr. Mark Hyman

Medicine, Health & Fitness, Nutrition

4.5 • 9.1K Ratings

🗓️ 2 February 2026

⏱️ 29 minutes

🔗️ Recording | iTunes | RSS

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Summary

For decades, we’ve been told that high cholesterol is the main driver of heart disease—and that lowering LDL should be the primary goal. But as science has evolved, so has my thinking. In today’s Office Hours, I explain why cholesterol alone doesn’t tell the full story, what most doctors still aren’t testing, and what’s really driving heart disease for the majority of people. Today we discuss: • Why many people have heart attacks despite “normal” LDL cholesterol • The difference between cholesterol levels and cholesterol particles • How inflammation and insulin resistance fuel heart disease • Why sugar and refined starches are more dangerous than fat • The most important labs to assess real cardiovascular risk • What ApoB, lipoprotein(a), and triglyceride-to-HDL ratio reveal about your health • How metabolic dysfunction—not cholesterol alone—drives plaque buildup Heart disease is far more complex than a single lab value. When you understand the role of metabolic health, inflammation, and the right biomarkers, you can take meaningful steps to protect your heart and long-term health. Visit ⁠functionhealth.com⁠ for 160+ lab tests at just $365 a year. Helpful Resources: Join the 10-Day Detox to Reset Your Metabolic Health https://drhyman.com/pages/10-day-detox Have a question you’d love answered on Office Hours? Submit it here 👉https://docs.google.com/forms/d/e/1FAIpQLSdNF2y4lFWEOMLlzVNlFDpJ4xl7oOpH9NlImMoHr5mHggL_Ww/viewform?usp=header

Transcript

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0:00.0	Welcome to office hours. This is our dedicated one-on-one space to go deeper, get clear, and explore what truly moves the needle for your health.
0:19.4	I'm Dr. Mark Hyman, and each week we're going to pull back the curtain and share the insights, the research, the lessons that
0:24.3	don't always make it into our conversations with guests. Because at the end of the day,
0:28.7	you are the CEO of your own health. And for many of you, your family's health too. And you
0:33.3	might not feel it all the time, but you have far more power in agency than you realize. I'm glad you're
0:38.2	here. This episode is brought to you by Function Health, empowering you to live 100 healthy years
0:45.4	with over 160 lab tests at just $365 a year. Sign up today at functionhealth.com slash mark
0:52.1	and use code Mark 2026 to get $50 towards your membership.
0:56.3	Hey everybody. You know from time in time science changes and I change. I look at the data,
1:02.5	I see what's changed and I changed my thinking. I change my practice. And I just don't want to
1:07.5	keep you up to date because science is an evolving process. We're constantly doing research.
1:13.1	We're constantly learning.
1:14.8	And old ideas may not always be the right ideas.
1:17.9	And even though they can be pretty strong, like, for example, that low fat diets are good for heart disease.
1:23.6	Well, that ain't true.
1:24.6	And we know what happened with that with snackbow cookies and we went low
1:29.1	fat and we all got fat and we all got diabetes and we all got more heart disease. So we have to look
1:36.6	at the things that we hold on to like these sacred idols and we have to let them go if the science
1:43.2	doesn't prove that they're true anymore.
1:44.9	So today I want to talk about something I've changed my mind about over the years, cholesterol
1:48.6	and heart disease.
1:50.4	Now, heart disease is the number one kill of Americans since the 1950s, and yet so many are
	...

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