Can diet really reverse atherosclerosis, or is that an overpromise? Since sharing my own coronary CT angiogram results, this question has come up almost daily. In this episode, I revisit the best clinical trials to see what the evidence actually says.
I break down six randomised controlled trials and explain how different dietary patterns influence plaque progression, plaque stability, and cardiovascular events.
What we cover
- What atherosclerosis is and how it develops over time
- The tools used to measure plaque and artery health
- Evidence from six major randomised controlled trials on diet and atherosclerosis
- What Mediterranean and low fat diets actually achieve in practice
- Whether diet still matters if you are already on medication
- Key takeaways for prevention, progression, and long term heart health
Diet cannot do everything, but the evidence shows it can meaningfully change the trajectory of atherosclerosis and reduce cardiovascular risk.
- Intro (00:00)
- What is Atherosclerosis? Understanding Plaque Buildup (02:06)
- 4 Ways to Measure Plaque: CAC, IMT, CTA, and QCA (05:35)
- The Gold Standard: 6 Randomized Controlled Trials (RCTs) (09:36)
- The 1990 Lifestyle Heart Trial (Dean Ornish) (12:20)
- The STARS Trial: Omega-3s & Fiber for Plaque Reversal (19:17)
- The SCRIP Trial: Stacking Lifestyle and Medication (23:36)
- PREDIMED Study: The Power of the Mediterranean Diet (26:53)
- CORDIOPREV Results: Secondary Prevention of Heart Disease (32:53)
- DISCO CT Trial: Modern AI Imaging of Plaque Changes (39:24)
- Summary of Clinical Evidence: What Actually Shrinks Plaque? (43:53)
- 3 Critical Takeaways for Managing Your Heart Health (46:25)
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Simon Hill, MSc, BSc (Hons)
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