Heart Disease and Metabolic Dysfunction

If you’ve read parts one and two of this series, you know two things:

1. Heart disease is happening earlier and more often than the public narrative suggests.
2. The “we’re winning” mortality numbers are a treatment artifact, not a health win.

This post is about the part nobody wants to hear: what to actually do about it.

Heart disease has a parent disease

Cardiologists treat heart disease. But heart disease is rarely the actual problem. It’s the late-stage downstream consequence of something else — and that something else has a name.

Metabolic dysfunction.

The same insulin resistance, chronic inflammation, dyslipidemia, and visceral fat accumulation that drive type 2 diabetes also drive most cardiovascular disease. They’re not separate epidemics. They’re the same epidemic showing up in different organs.

The numbers say it plainly:

• Metabolic syndrome prevalence rose from 28.2% to 37.1% of US adults between 1999 and 2018. More than one in three adults now carries the precise metabolic signature that predicts a future heart attack.
• Diabetes prevalence has gone from roughly 3% in 1990 to 15.8% of adults in 2023 (CDC NCHS).
• Obesity went from 19.3% in 1990 to 42.5% in 2022 (JAMA, 2026).

Every one of those trends precedes heart disease by 10-20 years. We are not having a cardiovascular crisis. We are having a metabolic crisis that is expressing itself as a cardiovascular crisis.

The food environment is the smoking gun

What changed in the last 30-40 years that explains an entire population becoming metabolically broken?

The food environment is the loudest signal:

• Ultra-processed food went from a small fraction of intake to 55% of total calories for the average American — and 62% for children and teenagers (CDC NCHS Data Brief 536, 2025). Three out of every five calories your kid eats is barely food.
• Soybean oil consumption increased more than 1,000-fold between 1909 and 1999. Linoleic acid as a share of dietary energy more than doubled.
• Added sugar consumption — particularly from sweetened beverages — exploded between the 1970s and 2000s and remains historically elevated.
• Whole food consumption declined in lockstep. We didn’t just add bad food. We replaced real food.

This isn’t an aesthetic argument. It’s a biochemical one. Insulin signaling, lipid metabolism, mitochondrial function, gut microbiome composition, and inflammatory tone all respond directly to what you eat. None of them respond to what your cardiologist gives you after the damage is already done.

What this means for actually preventing heart disease

The standard prevention checklist is something like:

• Eat less saturated fat
• Replace butter with vegetable oil
• Eat more whole grains
• Watch your cholesterol number
• Take a statin if your LDL is “high”

This is the same advice that built the metabolic crisis we now have. It is also the advice your doctor will most likely give you.

The evidence-based prevention checklist looks different:

1. Eliminate or drastically reduce ultra-processed food.

Not “moderate.” Eliminate. This is the single largest available lever. If 55-62% of your calories are ultra-processed, every other intervention you try is fighting uphill.

2. Replace seed oils with stable fats.

Butter, ghee, tallow, coconut oil, unrefined avocado oil, extra virgin olive oil. Industrial soybean, corn, canola, sunflower, safflower, and grapeseed oils have no place in a metabolically healthy kitchen — including the ones hidden in salad dressings, condiments, and “heart healthy” snacks.

3. Build meals around protein and produce.

Whole, minimally processed protein sources. Real vegetables and fruits. Carbohydrates from intact, recognizable sources rather than from things that came out of an extruder.

4. Watch fasting insulin, not just LDL.

Insulin resistance precedes nearly every adverse cardiovascular outcome and is barely measured in standard care. A normal fasting glucose with a high fasting insulin is a flashing red light that most labs and most physicians miss completely.

5. Move daily and lift heavy.

Skeletal muscle is a metabolic organ, not a cosmetic feature. Insulin sensitivity, glucose disposal, and lipid metabolism all run through it. The most underrated cardiovascular intervention available to you is more lean muscle mass.

The bottom line

You cannot statin your way out of a broken food environment. You cannot stent your way out of decades of insulin resistance. The cardiology cavalry is good, but it is not that good — and it is most certainly not arriving in time for your generation the way it did for the last one.

The way out is the way in. The food, the movement, the sleep, the stress — the boring inputs that nobody profits from telling you about.

That’s not a wellness trend. That’s not a fad. That’s the only intervention that addresses the disease where it actually starts.

Heart disease isn’t a disease. It’s a symptom. Treat the cause.