Your doctor orders a lipid panel every year — but 3 cheap blood tests predict heart disease, diabetes, and even dementia far better than cholesterol, and most doctors never order them.

In this episode, Robert Lufkin MD walks through fasting insulin + HOMA-IR, homocysteine, and high-sensitivity CRP — three tests that together cost about $60, take one blood draw, and catch the metabolic dysfunction a standard lipid panel systematically misses.

CHAPTERS:

00:00 — The 3 Blood Tests Your Doctor Isn't Ordering
00:40 — Part 1: Fasting Insulin and HOMA-IR
01:15 — How Insulin Resistance Hides for 10–15 Years
01:45 — HOMA-IR vs Glucose: What 516,000 People Revealed
02:05 — 59% Higher Cardiovascular Risk in the 2023 ATVB Study
02:45 — Optimal Fasting Insulin: Why 5–8 Beats the Lab's "25"
03:05 — Part 2: Homocysteine and the MTHFR Connection
03:35 — How Homocysteine Damages Your Arteries (6 Mechanisms)
03:50 — 60% Higher Stroke Risk and 48% Alzheimer's Risk
04:35 — The Oxford VITACOG Trial: 53% Less Brain Atrophy
05:05 — Part 3: High-Sensitivity CRP and Inflammatory Plaque
05:40 — The JUPITER Trial: 44% Drop in Cardiac Events
06:15 — UK Biobank: Why hs-CRP Beats LDL Cholesterol
06:50 — AHA Risk Categories for hs-CRP Since 2003
07:15 — Part 4: The Metabolic Picture (Why Cholesterol Is the Wrong Target)
07:50 — 3 Tests, $60, One Blood Draw — The Full Framework

KEY TAKEAWAYS:

Fasting insulin + HOMA-IR catches insulin resistance a decade before glucose goes abnormal — optimal is below 5–8, not the lab's reference range of 25
Every 5 µmol/L rise in homocysteine raises coronary artery disease risk 20–30% and stroke risk 60%, independent of cholesterol
hs-CRP predicted cardiovascular events better than LDL in a 322,000-person UK Biobank analysis — yet fewer than 10% of cardiac panels order it
Cardiovascular disease, type 2 diabetes, and dementia share the same upstream driver: metabolic dysfunction, not cholesterol
All three tests together cost roughly $60 and come from a single blood draw

LINKS:
📖 Dr. Lufkin's book "Lies I Taught in Medical School": robertlufkinmd.com/lies
📰 Substack: robertlufkinmd.substack.com
🌐 Website: robertlufkinmd.com
▶️ Watch on YouTube: youtu.be/FBLB1CQGBPM

⭐ Enjoying the show? Please leave a 5-star review on Apple Podcasts — it takes 30 seconds and helps more people discover the science of health and longevity. Thank you!

New episodes every other Tuesday. Subscribe so you don't miss one.

Continue this conversation on Substack: https://robertlufkinmd.substack.com

Lies I Taught In Medical School — Free sample chapter: https://www.robertlufkinmd.com/lies/

Web: https://www.robertlufkinmd.com
YouTube: https://www.youtube.com/robertlufkinmd
X: https://x.com/robertlufkinmd
Instagram: https://www.instagram.com/robertlufkinmd/
TikTok: https://www.tiktok.com/@robertlufkin
LinkedIn: https://www.linkedin.com/in/robertlufkinmd/

EXPLAINER: 3 Blood Tests Your Doctor Skips (That Predict Heart Attacks & Alzheimer's)

Health Longevity Secrets

EXPLAINER: 3 Blood Tests Your Doctor Skips (That Predict Heart Attacks & Alzheimer's)