Cardiovascular disease remains the leading cause of death globally, and yet the conversation around prevention has rarely felt more confused. We hear that seed oils are inflammatory, that saturated fat doesn’t matter, that statins do all the work, and that diet is largely beside the point. None of these claims hold up well when you look at the evidence carefully.
In this Masterclass I’ve pulled together the conversations and segments that, in my view, give the clearest, most useful picture of what actually moves the needle on cholesterol, blood pressure, and long-term heart health. We cover the science of plaque progression and regression, the Portfolio Diet, six landmark trials on diet and atherosclerosis, the saturated fat and seed oil debate, and the role of sodium and potassium in blood pressure control. Featuring contributions from Dr Walter Willett, cardiology dietitian Michelle Routhenstein, and nephrologist Dr Raymond Townsend, this is a long-form, evidence-first guide to what actually works.
What We Cover:
- Why legumes (tofu, tempeh, lentils, chickpeas) are the most underrated longevity food, and what a Harvard study of around 50,000 people followed for nearly 40 years tells us about swapping animal protein for plant
- How the Portfolio Diet stacks four food levers (nuts, plant protein, viscous fibre, plant stanols) for around a 30% reduction in LDL cholesterol
- What six landmark trials, including DISCO-CT, CORDIOPREV, PREDIMED, STARS, the Ornish Lifestyle Heart Trial, and SCRIPT, tell us about diet, plaque progression, and plaque regression
- Why the seed oil panic doesn’t survive contact with the randomised trial evidence, and what Dr Walter Willett wants people to understand about omega-6 fats
- The nuance around dairy: full-fat versus low-fat, fermented versus non-fermented, and where soy milk fits in
- Why sodium is the single biggest dietary lever for blood pressure, and how the DASH diet at lower sodium can rival pharmacological therapy
- The case for stacking lifestyle and medication, rather than treating them as opposing options
- Practical, food-first tweaks you can make today, including the daily tofu and lentil habit, psyllium husk, and choosing plant stanols over sterols
Heart disease is, for the most part, a slow-moving and largely preventable condition. The earlier we act, the more leverage we have. My hope with this Masterclass is to give you a clearer map of what works, what doesn’t, and where the real returns sit. Prevention is not something to put off until later, it is something you can start working on today.
- Most Underrated Foods for Long-Term Health (00:00)
- Can You Actually Reverse Artery Plaque? (03:07)
- How to Lower ApoB Without Statins (07:19)
- The Portfolio Diet: Cut LDL by 30% (09:11)
- 6 Trials That Changed Heart Disease Science (16:30)
- Michelle Routhenstein: Why Doctors Skip ApoB Testing (20:07)
- Best Food Swaps to Lower ApoB (27:04)
- RFK Jr, Seed Oils, and the Saturated Fat Debate (35:48)
- Full-Fat vs. Low-Fat Dairy and Your Heart (38:27)
- Blood Pressure: Why the Sodium-Potassium Ratio Matters (43:08)
- Walter Willett: The True Mediterranean Diet (45:19)
- Are Seed Oils Inflammatory? The Science (50:50)
- Should You Cook with Olive Oil or Not (57:44)
- Full-Fat vs. Low-Fat Dairy: 2025 Research (01:03:00)
- Dairy vs. Soy Milk: Health and Planet (01:09:32)
- Plant Protein vs. Animal Protein: The Data (01:14:52)
- Raymond Townsend: Top Levers for Lowering Blood Pressure (01:16:38)
- Best Exercise Type for Blood Pressure (01:20:13)
- How Sodium Raises Blood Pressure Over Time (01:24:48)
- Potassium vs. Sodium: Why the Ratio Is Everything (01:30:40)
- Should You Watch Salt with Normal Blood Pressure (01:43:51)
- Why the DASH Diet Works as Well as a Drug (01:48:31)
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More about Walter Willett
Dr Walter Willett is a physician and epidemiologist and professor of epidemiology and nutrition at the Harvard T.H. Chan School of Public Health. He served as chair of the Department of Nutrition at Harvard for 25 years. Much of his work has been on the development of methods, using both questionnaire and biochemical approaches, to study the effects of diet on the occurrence of major diseases. He has applied these methods starting in 1980 in the Nurses’ Health Studies I and II and the Health Professionals Follow-up Study. Together, these cohorts that include nearly 300,000 men and women with repeated dietary assessments are providing the most detailed information on the long-term health consequences of food choices. Dr Willett has published over 2,000 research papers, primarily on lifestyle risk factors for heart disease and cancer, and has written the textbook Nutritional Epidemiologypublished by Oxford University Press. He also has four books for the general public. Dr Willett is the most cited nutritional scientist internationally. He is a member of the National Academy of Medicine and the recipient of many national and international awards for his research.
More about Michelle Routhenstein
Michelle Routhenstein, MS, RD, CDCES, CDN is a preventive cardiology dietitian and the founder of Entirely Nourished, a virtual nutrition counseling practice dedicated to helping people take control of their heart health through personalized, science-based nutrition. With over 14 years of experience as a registered dietitian specializing in cardiovascular disease, Michelle takes a whole-person nutrition approach, considering all aspects of heart health including inflammation, blood pressure, heart function, heartbeat regularity, cholesterol, blood sugar, and other key factors. She helps clients improve their cardiometabolic risk profile, stabilize atherosclerosis, and support the prevention and management of heart failure and atrial fibrillation. Michelle translates the science into personalized, practical guidance and empowers clients to make meaningful, lasting changes that are enjoyable, sustainable, and life-enhancing. She earned her Bachelor’s and Master’s degrees in Clinical Nutrition from New York University, where she also completed her dietetic residency. Before starting her practice, she worked in New York City hospitals, including a Level 1 trauma center, managing complex cases and seeing firsthand the powerful impact of nutrition on recovery and long-term health. Michelle serves on the Forbes Health Advisory Board and the Medical Advisory Committee for the National Menopause Foundation. She is the author of The Truly Easy Heart-Healthy Cookbook and has been featured in Forbes Health, Fox News, Medical News Today, Prevention, Women’s Health, GLAMOUR, Health, Good Housekeeping, and VeryWell Health. Outside of work, Michelle enjoys exploring life with her husband and four sons through travel, biking, delicious food, and family experiences. She lives in New York and works with clients virtually. Visit www.entirelynourished.com to learn more.
More about Dr Raymond R. Townsend
Raymond R. Townsend, MD, is a Professor of Medicine and an Associate Director of the Clinical and Translational Research Center at the University of Pennsylvania. His research involves studying factors in the progression of chronic kidney disease, and the development and progression of cardiovascular disease in patients with CKD. In addition, he has worked extensively in the area of Renal Denervation in hypertension therapy. His formal certifications are in internal medicine (ABIM), nephrology (ABIM), clinical pharmacology (ASCP) and hypertension (ASH). He is a Fellow in the American Heart Association and the Council on Hypertension. He was an empaneled member of JNC 8, and has contributed to eh the Hypertension Canada Guidelines Committee. He was the AHA Physician of the Year awardee for 2016.
