HW functional medicine · 11 min read · 2,161 words

Men's Cardiovascular Risk: The Silent Killer Approach

A bridge does not collapse the day the first crack appears. It deteriorates for years — stress fractures in the rebar, corrosion in the cables, invisible erosion in the foundation — while traffic flows across it daily.

By William Le, PA-C

Men’s Cardiovascular Risk: The Silent Killer Approach

The Bridge That Cracks Before It Falls

A bridge does not collapse the day the first crack appears. It deteriorates for years — stress fractures in the rebar, corrosion in the cables, invisible erosion in the foundation — while traffic flows across it daily. The collapse, when it comes, feels sudden. But it was decades in the making.

This is heart disease in men. The first heart attack is rarely the beginning of the story. It is the climax of a process that started 20 or 30 years earlier in the endothelial lining of the arteries. Functional medicine does not wait for the bridge to fall. It inspects the structure, identifies the cracks, and repairs them before catastrophe.

Why Heart Disease Hits Men Earlier

Men develop cardiovascular disease roughly 7-10 years earlier than women. The primary reason is estrogen. Premenopausal women enjoy significant cardiovascular protection from estradiol, which promotes nitric oxide production, reduces LDL oxidation, improves endothelial function, and favorably affects lipid profiles. Men lose their mothers’ estrogen protection at birth and never benefit from their own significant estrogen production.

Additionally, men tend to accumulate visceral fat earlier, develop insulin resistance sooner, have higher rates of smoking and alcohol use historically, and are less likely to seek medical attention for early warning signs.

But the biggest gap is in detection. Standard cardiovascular screening — total cholesterol, LDL-C, HDL, triglycerides — misses the majority of risk. Nearly half of all heart attacks occur in people with “normal” cholesterol. Functional cardiology goes far deeper.

Beyond LDL: Advanced Lipid Testing

Standard LDL cholesterol (LDL-C) measures the amount of cholesterol carried in LDL particles. But it tells you nothing about how many particles are carrying it or what size they are. Two men with identical LDL-C of 130 mg/dL can have wildly different cardiovascular risk depending on their particle number and pattern.

LDL Particle Number (LDL-P) and ApoB

LDL-P (measured by NMR LipoProfile) or ApoB (each LDL particle carries one ApoB molecule) are the true atherogenic measures. An LDL-P above 1000 nmol/L or ApoB above 80 mg/dL signals elevated risk regardless of LDL-C. When LDL-C and LDL-P are discordant — normal cholesterol but high particle number — the particle number wins for risk prediction.

Lipoprotein(a) — Lp(a)

Lp(a) is a genetically determined lipoprotein that is arguably the most underappreciated cardiovascular risk factor. Elevated Lp(a) (above 30 mg/dL or 75 nmol/L) increases heart attack and stroke risk 2-4 fold. It is pro-thrombotic, pro-inflammatory, and carries oxidized phospholipids. Every adult should be tested once.

Management of elevated Lp(a):

  • Niacin (1-3 g/day, extended-release) — the only current supplement that meaningfully lowers Lp(a) (20-30% reduction). Requires liver function monitoring and flushing management.
  • PCSK9 inhibitors (evolocumab, alirocumab) — reduce Lp(a) by 25-30%
  • Pelacarsen — an antisense oligonucleotide targeting hepatic Lp(a) production, currently in Phase 3 trials (HORIZON), showing 80%+ Lp(a) reduction. May be approved by 2026.
  • Aggressive management of all other risk factors — when Lp(a) is elevated, you must be pristine on everything else you can control.

Small Dense LDL (sdLDL) and Oxidized LDL

Small dense LDL particles penetrate the arterial wall more easily, are more susceptible to oxidation, and are more atherogenic than large buoyant LDL. Pattern B (predominance of sdLDL) correlates with insulin resistance and metabolic syndrome. Oxidized LDL (OxLDL) is the form that actually triggers the inflammatory cascade in arterial walls — unoxidized LDL is relatively benign.

Remnant Cholesterol

Calculated as total cholesterol minus LDL-C minus HDL-C, remnant cholesterol reflects triglyceride-rich lipoprotein particles (VLDL and IDL). Elevated remnant cholesterol independently predicts cardiovascular events and responds to metabolic interventions (carbohydrate restriction, exercise, omega-3 fatty acids).

Coronary Artery Calcium (CAC) Score

The CAC score, measured by a non-contrast cardiac CT scan, directly visualizes calcified atherosclerotic plaque in the coronary arteries. It is the closest thing we have to looking at the bridge’s actual structural damage.

Matthew Budoff and others have demonstrated that CAC scoring powerfully reclassifies risk. A CAC of zero in an asymptomatic patient confers a very low 10-year event rate (<1-2%) and can justify deferring statin therapy even in intermediate-risk patients. A CAC above 100 signals significant atherosclerosis warranting aggressive risk management.

Who should get a CAC score? Men over 40 (or younger with strong family history) who fall into the intermediate risk category — not clearly low risk, not clearly high risk. It resolves the ambiguity that traditional risk calculators leave.

Important caveat: CAC scores do not detect soft (non-calcified) plaque, which may be more vulnerable to rupture. A zero CAC does not guarantee zero risk in younger men with aggressive risk factors.

Endothelial Function: Where It All Begins

Atherosclerosis begins in the endothelium — the single-cell-thick lining of every blood vessel. When endothelial function is impaired, the vessel can no longer produce adequate nitric oxide (NO), the molecule that keeps arteries relaxed, smooth, and non-sticky. Without NO, arteries become stiff, inflammatory cells adhere, LDL particles penetrate the wall, and the plaque-building process begins.

Nitric Oxide Support

  • L-citrulline (3-6 g/day) — converts to L-arginine in the kidneys, then to NO via endothelial nitric oxide synthase (eNOS). More effective than L-arginine directly because it bypasses first-pass metabolism and arginase degradation.
  • L-arginine (3-6 g/day) — direct NO precursor. Can be useful but has limitations due to arginase activity.
  • Beetroot juice or powder (providing 400-800 mg nitrates daily) — dietary nitrates are converted to nitrite by oral bacteria, then to NO in the bloodstream. Demonstrated blood pressure reduction in multiple trials.

CoQ10 (Ubiquinol, 200-400 mg daily)

CoQ10 is essential for mitochondrial energy production in the heart and vascular endothelium. It protects LDL from oxidation, improves endothelial function, reduces blood pressure, and is depleted by statin medications. The KISEL-10 trial (Alehagen 2013) showed dramatic reduction in cardiovascular mortality with combined CoQ10 and selenium supplementation in elderly patients.

Omega-3 Fatty Acids (EPA + DHA, 2-4 g daily)

Omega-3s reduce triglycerides, improve endothelial function, stabilize atherosclerotic plaque, reduce arrhythmia risk, and modulate inflammation. The REDUCE-IT trial (2019) demonstrated a 25% reduction in cardiovascular events with high-dose EPA (icosapent ethyl, 4 g/day) in statin-treated patients with elevated triglycerides. Target: omega-3 index above 8%.

Homocysteine: The Methylation-Cardiovascular Connection

Homocysteine is a sulfur-containing amino acid produced during methionine metabolism. Elevated homocysteine (above 8 umol/L by functional standards, though conventional labs flag above 15) damages endothelium, promotes thrombosis, increases oxidative stress, and accelerates atherosclerosis.

The primary driver of elevated homocysteine is impaired methylation, often linked to MTHFR polymorphisms (C677T and A1298C variants). The solution is nutritional:

  • Methylfolate (5-MTHF) — 800-5000 mcg daily (not folic acid, which requires MTHFR to convert)
  • Methylcobalamin (B12) — 1000-5000 mcg daily
  • Pyridoxal-5-phosphate (active B6) — 25-50 mg daily
  • Trimethylglycine (TMG/betaine) — 1000-3000 mg daily, provides an alternative methylation pathway

Target homocysteine below 8 umol/L. Recheck 8-12 weeks after starting methylation support.

Insulin Resistance: The Cardiovascular Driver Hiding in Plain Sight

Insulin resistance may be the single most important cardiovascular risk factor that conventional cardiology underappreciates. Before blood sugar rises to diabetic levels, years of compensatory hyperinsulinemia drive:

  • Endothelial dysfunction
  • Hypertension (insulin promotes sodium retention and sympathetic activation)
  • Atherogenic dyslipidemia (high triglycerides, low HDL, small dense LDL)
  • Prothrombotic state
  • Chronic inflammation

Simple Screening Markers

  • TG/HDL ratio — the poor man’s insulin resistance test. Ratio above 2.0 (in mg/dL units) suggests insulin resistance; above 3.5 is strongly predictive.
  • Fasting insulin — optimal below 5 uIU/mL; above 10 indicates significant insulin resistance
  • HOMA-IR — (fasting glucose x fasting insulin) / 405. Optimal below 1.0; above 2.5 is insulin resistant.

Addressing insulin resistance — through carbohydrate modulation, time-restricted eating, resistance training, sleep optimization, and stress management — may do more for cardiovascular protection than any medication.

The Statin Conversation

Statins are the most prescribed class of cardiovascular medication worldwide. They reduce LDL-C, LDL-P, and CRP (anti-inflammatory effect). The functional medicine position is not anti-statin — it is pro-nuance.

Who Truly Benefits?

  • Secondary prevention (already had a heart attack, stroke, stent, or bypass) — strong benefit, low NNT (number needed to treat: approximately 25-30 over 5 years to prevent one event)
  • High-risk primary prevention (diabetes + multiple risk factors, very high LDL-P, elevated CAC score) — moderate benefit
  • Low-to-intermediate risk primary prevention — weak benefit, high NNT (often 100-200+), where lifestyle intervention provides comparable or greater benefit

Side Effects to Monitor

  • CoQ10 depletion — statins inhibit the mevalonate pathway, which produces both cholesterol and CoQ10. Always co-supplement CoQ10 (200-400 mg ubiquinol).
  • Myopathy — muscle pain, weakness, elevated CK. Affects 5-20% of patients depending on the study.
  • Insulin resistance — statins modestly increase diabetes risk (9% in JUPITER trial)
  • Cognitive complaints — reported by some patients, mechanism debated

Alternatives and Adjuncts

  • Red yeast rice (600-1200 mg twice daily) — contains monacolin K, which is chemically identical to lovastatin. Effective for LDL reduction but with the same cautions as statins (CoQ10 depletion, myopathy risk). Requires liver monitoring.
  • Berberine (500 mg 2-3x daily) — activates AMPK, reduces LDL-C, triglycerides, and blood glucose. Head-to-head studies with metformin show comparable glycemic control.
  • Citrus bergamot (500-1000 mg daily) — polyphenols that inhibit HMG-CoA reductase (same target as statins) and improve the TG/HDL ratio. Promising clinical data in metabolic syndrome.
  • Plant sterols/stanols (2 g daily) — block intestinal cholesterol absorption, reduce LDL-C by 5-15%.

Blood Pressure: The Functional Approach

Magnesium

Lindsy Kass’s 2012 meta-analysis of 22 trials in the European Journal of Clinical Nutrition demonstrated significant blood pressure reduction with magnesium supplementation — average 3-4 mmHg systolic, 2-3 mmHg diastolic. Dose: 400-600 mg elemental magnesium daily (glycinate, taurate, or malate). Effect is greater in those who are deficient.

Potassium

Most adults consume far less than the recommended 4,700 mg daily. Increasing potassium intake (through food: avocados, sweet potatoes, leafy greens, bananas, coconut water) lowers blood pressure by promoting sodium excretion and relaxing vascular smooth muscle. Supplementation (potassium chloride or citrate, 500-1000 mg) with renal function monitoring.

Garlic

Karin Ried’s 2008 meta-analysis in BMC Cardiovascular Disorders confirmed that garlic supplementation (aged garlic extract or allicin-standardized preparations) reduces blood pressure by 8-10 mmHg systolic in hypertensive patients. Dose: aged garlic extract 600-1200 mg daily, or fresh garlic 4 g daily.

Additional Interventions

  • Hibiscus tea (3-4 cups daily) — multiple trials show significant blood pressure reduction comparable to some pharmaceuticals
  • CoQ10 (200-300 mg daily) — meta-analyses show 11 mmHg systolic reduction
  • Beetroot juice (250-500 mL daily) — dietary nitrates convert to NO, acutely and chronically reduce blood pressure
  • DASH diet — rich in fruits, vegetables, lean protein, low-fat dairy, whole grains; reduced sodium. Demonstrated 8-14 mmHg systolic reduction.
  • Stress management — meditation, deep breathing, and biofeedback reduce sympathetic activation and blood pressure

Atrial Fibrillation: The Functional Approach

AF is the most common sustained arrhythmia, and its prevalence is rising. The conventional approach focuses on rate control, rhythm control, and anticoagulation. Functional medicine looks at root causes.

Key Functional Drivers

  • Magnesium deficiency — magnesium is a natural calcium channel blocker and antiarrhythmic. Supplementation (400-800 mg) reduces AF episodes.
  • Omega-3 fatty acids — anti-inflammatory and membrane-stabilizing. Mixed trial results, but observational data supports benefit at moderate doses (1-2 g daily).
  • Potassium — hypokalemia is a well-established AF trigger. Maintain serum potassium 4.0-5.0 mEq/L.
  • Alcohol — even moderate alcohol intake increases AF risk (“holiday heart syndrome”). Reduction or elimination often reduces episode frequency.
  • Caffeine — despite popular belief, moderate caffeine intake does not increase AF risk in most patients. Excessive intake may provoke episodes in sensitive individuals.
  • Sleep apnea — untreated obstructive sleep apnea doubles AF risk and dramatically reduces the success of ablation and cardioversion. CPAP treatment significantly reduces AF recurrence.
  • Vagal vs adrenergic AF — vagal AF occurs at rest, after meals, during sleep; adrenergic AF occurs during exercise or stress. The distinction guides treatment. Vagal AF may worsen with beta-blockers and improve with gentle exercise; adrenergic AF responds to beta-blockers and stress management.

The Integration

Cardiovascular risk management in men is not about any single marker or intervention. It is about understanding the web of interconnected drivers — metabolic health, inflammation, oxidative stress, endothelial function, hormonal balance, sleep, stress, toxin burden — and addressing each systematically.

A man with perfect LDL-C can die of a heart attack if his Lp(a) is sky-high and his insulin is driving endothelial damage. A man with elevated LDL-C and a CAC score of zero may not need a statin at all. The functional medicine approach refuses to reduce cardiovascular health to a single number or a single pill.

What would change in your approach to heart health if you stopped asking “what is my cholesterol?” and started asking “what is the state of my arteries, my metabolism, my inflammation, and my stress”?