ApoB, short for apolipoprotein B, is a blood marker that approximates the number of atherogenic lipoprotein particles carrying ApoB, including LDL, VLDL remnants, IDL, and Lp(a).
Why it matters
Cardiovascular risk is influenced by the number of particles that can enter artery walls, not only by how much cholesterol those particles carry. A standard lipid panel reports LDL-C, which is cholesterol mass. ApoB adds particle-number context, especially when LDL-C and triglycerides do not tell the same story.
How to read it
ApoB is usually reported in mg/dL, and the meaning depends on age, risk history, medications, family history, diabetes status, kidney disease, and the lab's reporting conventions. It should not be reduced to a universal target inside a supplement app. The useful tracking question is whether ApoB moved in a plausible direction over a long enough window and whether other cardiovascular risk context agrees.
Pairing with other markers
ApoB is best interpreted beside LDL-C, non-HDL-C, triglycerides, Lp(a) when available, blood pressure, glucose markers, and clinician assessment. A low triglyceride value does not erase high particle burden. A favorable LDL-C value does not always mean ApoB is equally favorable.
Stack interpretation
Nutrition, weight change, thyroid state, genetics, and lipid-lowering medications often dominate ApoB movement. Supplement exposures can be logged, but the evidence tier for a specific ApoB claim should be outcome-specific. This is where supplement stack mistakes to avoid matters: adding multiple lipid-targeted products at once makes the result harder to interpret and can introduce risk.
How this appears in Unfair
Unfair stores ApoB as a cardiovascular marker inside a blood biomarker panel. The app treats it as a long-window objective proxy, linked to draw dates and stack cycles rather than day-to-day check-ins.
Clinical safety note
ApoB does not replace clinician care. Elevated, discordant, or medication-relevant results should be reviewed with a clinician, especially when family history, diabetes, kidney disease, or prior cardiovascular disease is present.