The SHOCKING #1 Cause of Heart Attacks

Berg differentiates between the 'ketogenic diet' as popularly practiced and his 'healthy keto' protocol. He observes that people often adopt low-carb eating but fail to ditch seed-oil-based dressings, mayonnaise, and restaurant fried foods. The result is persistent inflammation and stalled heart health improvements. The healthy keto approach requires a full swap to traditional fats. He mentions that even omega-6’s essentiality is not in question, but the oxidized form is the problem, and studies haven’t accounted for that.

Berg connects the cultural normalization of snacking to the obesity and heart disease epidemic. He states that the idea that we need to snack between meals is a disastrous modern habit. People with insulin resistance often feel they can't go long without eating; that very symptom is a signal that they need fasting. He frames fasting—specifically the absence of insulin spikes—as the primary lever for reversing epicardial fat.

Berg emphasizes that not all exercise is equal for insulin resistance. Many people assume that long, slow cardio is the gold standard for heart health, but he directly counters that by stating HIIT is superior because it avoids the cortisol spikes that come from extended running or jogging. A single session can produce measurable improvements in insulin receptor sensitivity. This is particularly useful for those who have time constraints and want maximum impact on their metabolic health.

Building on the beige nature of epicardial fat, Berg introduces cold therapy as a practical method to exploit its thermogenic potential. He positions it as 'one of the fastest way to drop your insulin,' which pairs synergistically with fasting and dietary changes to accelerate the reduction of visceral and epicardial fat.

Berg mentions this as an ancillary aid, without physiological detail, suggesting it can accelerate results when combined with the core dietary and lifestyle changes.

Berberine is mentioned briefly at the end as another accelerator, with no mechanism or dosing details.

Berg recounts asking a heart surgeon, Dr. Philip Ovedia, how often he observes this fat during open-heart surgeries, and the answer was 'nearly 100% of the time.' This fat sits right on top of the heart, in direct contact with muscle and coronary arteries, meaning any inflammation it generates reaches the heart first, before circulating systemically. The layer is not the typical yellow subcutaneous fat; it’s beige, indicating a mixed phenotype that is uniquely responsive to certain interventions. The condition arises from chronic high insulin, which forces fat storage around organs, and its resolution depends on lowering insulin. Berg frames this as the central insight that redefines the root cause and treatment target for cardiovascular events.

Berg argues that while omega-6s are essential, the commercial seed oils on shelves are a different beast. They are subjected to high heat and extracted with hexane (a gasoline component) to make them shelf-stable without refrigeration. This processing creates fragile, oxidized lipids. Upon consumption, these damaged fats incorporate into cell membranes and remain there for about a year and a half, directly impairing the insulin receptor on the cell surface. He notes that the average person now gets 25-30% of their calories from these oils, a massive metabolic load. Consequently, even individuals on a low-carb or keto diet who eliminate sugar and starches but continue using seed-oil dressings or cooking with vegetable oils often fail to resolve inflammation, heart problems, or insulin resistance. The solution is to replace them with stable fats like butter, tallow, coconut oil, and olive oil.

Berg notes that this epicardial fat is not purely white; it has a beige hue, indicating it contains some brown fat characteristics. Brown and beige fat are thermogenic—they burn energy to produce heat when stimulated by cold. Thus, deliberate cold exposure (cold showers, immersion tanks) can activate these fat cells, reducing the volume of epicardial fat and, crucially, causing a sharp drop in insulin. He positions this as one of the fastest ways to lower chronically elevated insulin. This dovetails with his recommendation to combine cold therapy with fasting to magnify fat loss around the heart.