Heart Health starts here.

A low ApoB means a very low number of plaque-causing particles in the bloodstream — which drastically reduces cardiovascular risk.

• Plaque prevention: when ApoB is very low (for example, in the 40s), it is extremely difficult for new cholesterol plaque to build up, and existing plaque tends to be stable and unlikely to rupture.
• Diet is still the main contributor to low ApoB. Avoid sugars, refined flours, processed vegetable oils, and "bad" carbs.
• Medication responsiveness: statins work by forcing the liver to pull LDL and other harmful particles out of the blood, which lowers ApoB. Many people respond well to a relatively low dose.
• Is it ever "too low"? Naturally occurring, extremely low ApoB (from rare genetic disorders) can affect fat absorption, but medication-induced low ApoB is widely considered safe and highly beneficial for heart health.

Reference ranges vary slightly by lab and by individual factors such as sex. Levels within — or slightly above — the standard range are generally favorable for cardiovascular protection and are typically associated with a lower risk of heart disease.

Cleveland Clinic overview of Apolipoprotein A1 →

Lp(a) is a complex cholesterol molecule made of an LDL-cholesterol particle, a sulfur bridge, and another lipid particle called apolipoprotein(a). If inherited, blood levels reach a plateau around age two and stay high through adulthood.

It is the most common inherited risk for premature cardiovascular disease — sometimes called the "sticky" cholesterol. Elevated Lp(a) can contribute to heart attack, stroke, peripheral arterial disease, aortic valve disease, and heart failure, and the risk climbs even higher with smoking, hypertension, and type 2 diabetes.

A 2018 National Heart, Lung, and Blood Institute report estimated that about 1.4 billion people — roughly 25–30% of the global population — have elevated Lp(a). Yet it's ordered by an estimated 1% of physicians, even though it's inexpensive and every lab measures it. In 2019 the European Society of Cardiology recommended measuring Lp(a) once in every person's lifetime.

Insulin resistance drives inflammation and accelerates arterial damage. Fasting insulin is a good measurement for pre-diabetes and can flag risk of progression to prediabetes and diabetes — often years earlier than glucose or A1c alone.

NMR separates VLDL, LDL, and HDL by particle size — small, medium, and large. Small, dense LDL carries greater cardiovascular risk at a given LDL-cholesterol level, and NMR dispels the idea that large "fluffy" LDL is always benign.

• LDL-P (LDL Particle Number): total LDL particles. Higher numbers are associated with greater atherosclerosis risk.
• Small LDL-P: small, dense particles that penetrate the artery wall more easily.
• LDL Size: smaller, denser LDL is associated with higher risk.
• HDL-P (HDL Particle Number): higher numbers are generally protective.
• Large HDL-P: large, buoyant HDL considered particularly protective.
• HDL Size: larger HDL is associated with lower risk.
• Large VLDL-P: triglyceride-rich particles that can contribute to atherosclerosis.
• VLDL Size: larger VLDL is associated with higher triglycerides and increased risk.

MPO measures disease activity from the inside (luminal) surface of the artery wall. When the artery is damaged or inflamed, invading macrophages release MPO, where it accumulates.

MPO drives the vascular inflammation that spreads plaque and activates protease cascades linked to plaque vulnerability. Injury to the artery wall — fissures, erosions, or a degrading collagen cap — triggers MPO release into the bloodstream. In short, MPO is actively involved in the progression of atherosclerosis.

These peptides dilate the arteries, lessening the force the heart must generate to circulate blood — the heart produces more when it's in trouble, to decrease its workload.

Elevated levels are a predictor of risk for heart attacks, strokes, transient ischemic attacks, and more. (Reference: Healthy Heart, Healthy Brain, p. 368.)