Consultant - Heart & Lung Transplant and Vascular Surgery, Artemis Hospitals, Gurgaon
Part 12 of 14 in All About Heart Failure & Coronary Artery Disease in African Population: The Way Forward
Preventing Coronary Artery Disease: Diet, the Oil Myth, and the Limits of Fitness
June 28, 2026
Dr. Purkayastha's prevention framework is simple: healthy eating, managing stress, stopping smoking, daily walking, and knowing your numbers, built around a “2-3-4-5” plant-based pyramid of two or more legume servings, three or more fruits, four or more vegetables and five or more whole grains daily. Asked why cardiac events have risen sharply in India despite a large population that nominally already eats this way, he points not to the pyramid but to cooking oil: industrial oils repackaged and marketed under successive omega-fatty-acid branding, replacing traditional mustard and olive oil, with health claims not backed by meaningful clinical evidence.
Fitness itself is no guarantee, either. Gyms typically require only a basic medical certificate, not triglyceride, homocysteine or CRP levels; the supplement industry is largely unregulated and mostly not FDA-approved; and building muscle mass ignores that the heart is a muscle too: when it hypertrophies beyond physiological bounds, that's hypertrophic cardiomyopathy, not fitness. He points to footballer Christian Eriksen, whose ICD detected and treated an arrhythmic episode years after implantation, against cricketer Shane Warne, whose death fit the classic pattern of smoking, crash diets and heavy alcohol.
This guide is based on a live Jivo Masterclass — Dr. Biswarup Purkayastha taught doctors across Africa on June 28, 2026.
FROM THE LIVE Q&A
Jivo Doctor Partner (name unclear from transcript)
How do you manage the bleeding risk when loading a patient with 600mg aspirin and clopidogrel?
Dr. Biswarup Purkayastha
You do not manage it — you accept it, because that is your best option to open the coronary artery blockage. The bleeding risk is only a problem in a living patient. If the patient dies from a myocardial infarction for lack of intervention, there is no bleeding to manage.
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Frequently Asked Questions
What is the primary indication for using sacubitril/valsartan, and how is it dosed?▼
It should be started at the lowest possible dose — half a tablet, 25mg once daily, titrated over a week to 50mg, then 100mg, not typically exceeding 100mg once daily or 50mg twice daily. The primary indication is ejection fraction below 45% with elevated NT-proBNP. In a patient with ejection fraction below 35% and high NT-proBNP, it should be initiated at the lowest dose and titrated carefully upward.
From your experience, what is the relative epidemiology of coronary artery disease in Africans, Asians, and Caucasians? Are there differences in surgical outcomes across these populations?▼
In Africans and Asians, coronary artery disease is largely driven by genetic predisposition. In Caucasians, the predominant driver is sedentary lifestyle combined with diet — high-fat foods, alcohol, physical inactivity — which more than compensates for their lesser genetic predisposition. Surgical outcomes are comparable worldwide, with success rates upward of 90% and combined morbidity and mortality after CABG around 5 to 7% regardless of country. But the numbers in Asia and Africa are hugely underrepresented — if one million cardiac deaths annually in sub-Saharan Africa is the current reported figure, the true number with adequate diagnostic infrastructure would likely be closer to three million.
Regarding the 2-3-4-5 plant-based diet pyramid — India has a large vegetarian population that nominally follows this diet, yet cardiac events have increased significantly over the last two to three decades. How do you explain that?▼
The traditional Indian vegetarian population was genuinely following something close to this diet. What changed was cooking oil. Industrial cooking oils were repackaged and marketed under omega fatty acid branding — omega-3, then omega-6, now omega-9 — persuading consumers to abandon traditional cooking fats like mustard oil and olive oil for artificially processed, packaged products whose health claims aren't supported by meaningful clinical evidence. If the population simply returned to traditional cooking oils, it would likely cut the cardiac disease burden significantly. The pyramid isn't the problem; the oil in the pan is.
Very fit people and even elite athletes are having sudden cardiac events. Does physical fitness guarantee cardiac health?▼
No, it does not. Gyms typically require only a basic medical certificate, not triglyceride, homocysteine or CRP levels. The supplement industry is enormous, largely unregulated and mostly not FDA-approved. And building muscle mass ignores that the heart is also a muscle — when it hypertrophies beyond physiological bounds, that's called hypertrophic cardiomyopathy, not fitness. The footballer Christian Eriksen is instructive: he had a cardiac event at Euro 2020, received an ICD, returned to professional football, and years later the ICD detected and treated an arrhythmic episode with a single defibrillation — he felt dizzy, walked off, and was alive. Shane Warne's death, by contrast, fit the classic pattern: lifelong smoking, crash diets, and heavy alcohol.
Can LVADs replace heart transplantation altogether? What is the future of this space?▼
For patients above 55, LVADs have to a reasonable extent already replaced transplantation as destination therapy — they can run fifteen years without complications on antiplatelet and anticoagulant therapy alone, with no immunosuppression needed. Three developments will transform deceased-donor transplant over the next decade: donation after circulatory death, which could roughly double the donor pool; ex vivo machine perfusion devices like the TransMedics Organ Care System, which keep a donor heart beating outside the body for twelve to twenty-four hours or more, making cross-continental transport feasible; and xenotransplantation, with genetically modified pig hearts already transplanted into two human recipients. It's unlikely any engineered device will fully replicate a natural heart, though — transplantation will stay relevant for at least the next fifteen to twenty-five years.
What does the 2-3-4-5 pyramid in Dr. Purkayastha's prevention framework stand for?▼
Two or more legume servings, three or more fruits, four or more vegetables and five or more whole grains every day.
Why has India seen rising cardiac events despite widespread vegetarian eating that resembles the 2-3-4-5 pyramid?▼
Not because of the pyramid itself, but because of cooking oil: industrial oils repackaged and marketed under successive omega-fatty-acid branding have replaced traditional mustard and olive oil, with health claims not backed by meaningful clinical evidence.
Does regular gym membership guarantee a healthy cardiac profile?▼
No; gyms typically require only a basic medical certificate, not triglyceride, homocysteine or CRP levels, and the supplement industry surrounding fitness is largely unregulated and mostly not FDA-approved.
What is hypertrophic cardiomyopathy and how does it relate to muscle building?▼
When the heart, itself a muscle, hypertrophies beyond physiological bounds the way other muscles do with training, that condition is hypertrophic cardiomyopathy, not fitness.
What do the cases of Christian Eriksen and Shane Warne illustrate?▼
Eriksen's ICD detected and treated an arrhythmic episode years after implantation, while Warne's death fit the classic pattern of smoking, crash diets and heavy alcohol, two very different cardiac stories among high-profile athletes.
In This Series: All About Heart Failure & Coronary Artery Disease in African Population: The Way Forward
- 1.Heart Failure and Coronary Artery Disease in the African Population
- 2.Why Heart Failure Looks Different in Africa: Earlier Onset, Later Diagnosis
- 3.What's Actually Causing Heart Failure in Africa: Hypertension, Rheumatic Disease, HIV and TB
- 4.The Heart Team: Why No Single Specialist Should Manage Heart Failure Alone
- 5.Modern Heart Failure Drugs: SGLT2 Inhibitors, ARNIs, and Beyond Digoxin
- 6.Surgical Options for Heart Failure: From Balloon Valvotomy to Heart Transplant
- 7.LVADs and the Future of Heart Transplantation
- 8.Recognising a Heart Attack: Why Symptoms Differ in Women and Diabetics
- 9.Treating a Heart Attack Without Immediate Access to a Cath Lab
- 10.PCI vs CABG: What the Evidence Actually Shows
- 11.Total Arterial CABG: Why Graft Quality Matters More Than Technique
- 12.Preventing Coronary Artery Disease: Diet, the Oil Myth, and the Limits of Fitness
- 13.Tricuspid and Mitral Valve Repair vs Replacement: A Surgeon's Real-World Approach
- 14.Managing Refractory Heart Failure With HIV and Tuberculosis