Apolipoprotein B — ApoB — is the most accurate predictor of cardiovascular risk available in a routine blood test. It counts every atherogenic lipoprotein particle in your bloodstream: LDL, VLDL, IDL, and Lp(a). Where LDL measures cholesterol mass, ApoB measures the actual number of particles that can penetrate and damage arterial walls. One ApoB molecule = one dangerous particle.
The European Society of Cardiology, the American Heart Association, and the Canadian Cardiovascular Society all now recommend ApoB as a primary cardiovascular risk marker — superior to LDL-C for most patients, especially those with insulin resistance, metabolic syndrome, or diabetes.
Why most Swiss GPs still don't order it
The Swiss KVG basic insurance system reimburses blood tests on the basis of medical necessity. For a healthy adult without symptoms, ApoB is not on the routine reimbursement list. Your GP's standard lipid panel — total cholesterol, LDL, HDL, triglycerides — is what the system is set up to pay for.
This creates a significant gap. Millions of people with perfectly normal LDL carry elevated ApoB due to the predominance of small, dense LDL particles. Each particle is equally atherogenic regardless of how much cholesterol it carries. Without ApoB, that risk is invisible.
Where to get an ApoB test in Switzerland
Option 1 — Through your GP with a referral. If your GP is willing to request ApoB, a Swiss certified laboratory (Viollier, Unilabs, Synlab) can process it. The test itself costs roughly CHF 25–45 at laboratory price. Without KVG reimbursement, you pay out of pocket. Ask your GP specifically for "Apolipoprotein B" — not just an extended lipid panel.
Option 2 — Direct-access private screening. Aeonix includes ApoB as a standard biomarker in every screening plan, starting at CHF 595 per year. Your result comes with physician commentary contextualising your ApoB in relation to your Lp(a), LDL-C, triglycerides, and HOMA-IR — the markers that together tell the full cardiovascular story.
Option 3 — Corporate health programmes. Swiss employers increasingly include ApoB in executive health programmes. If your company has a corporate wellness agreement, ask whether ApoB is included.
What does an ApoB result mean?
ApoB is measured in grams per litre (g/L) or milligrams per decilitre (mg/dL). Optimal values according to current ESC guidelines:
- Low risk: ApoB < 1.0 g/L (100 mg/dL)
- Moderate risk: ApoB < 0.8 g/L (80 mg/dL)
- High risk (existing cardiovascular disease or diabetes): ApoB < 0.65 g/L (65 mg/dL)
A person with LDL of 2.8 mmol/L and ApoB of 1.3 g/L has a significantly elevated cardiovascular risk that their LDL number completely conceals. This is the most common clinical scenario where ApoB adds decisive information.
ApoB vs LDL: the clinical difference in practice
Consider two patients with identical LDL of 3.0 mmol/L. Patient A has large, buoyant LDL particles — fewer particles, more cholesterol per particle. ApoB is 0.85 g/L. Risk is moderate. Patient B has small, dense LDL — many more particles, less cholesterol each. ApoB is 1.35 g/L. Risk is high. Standard lipid panel treats them identically. ApoB does not.
Should you test ApoB even with normal cholesterol?
Yes — particularly if you have any of the following: family history of early cardiovascular disease, insulin resistance or pre-diabetes, metabolic syndrome, elevated triglycerides, or low HDL. These conditions are associated with the small dense LDL phenotype that raises ApoB while leaving LDL-C apparently normal.
Aeonix recommends ApoB as a baseline marker for every adult over 30 who takes their long-term cardiovascular health seriously. It is not a specialist test. It is the test that a well-resourced GP would order routinely if the system were designed around prevention rather than reaction.