Apolipoprotein B (ApoB) is a protein found on every particle that can cause plaque (LDL, VLDL and others). Measuring it counts these particles directly.
- Normal range (adults)
- Below 90 mg/dL (below 0.9 g/L)
- Sample
- Blood
- Fasting
- Not usually needed
- Also called
- ApoB, Apo B, Apolipoprotein-B, ApoB100
Apolipoprotein B normal range
| Group | mg/dLConventional units: US, South Asia | g/LSI units: UK, Europe, Australia, international |
|---|---|---|
| Adults | Below 90 | Below 0.9 |
Your report may use either unit system; labs in the Gulf often print both. Ranges also vary slightly between laboratories, so the range printed on your own report is the one to go by.
Why is the Apolipoprotein B test done?
It is used when doctors want a more precise picture of heart risk, especially in people with diabetes, high triglycerides or a family history.
What does a high Apolipoprotein B level mean?
High ApoB means more artery-clogging particles and a higher heart and stroke risk, even when LDL looks normal.
Common causes
- Inherited lipid disorders
- Diet high in saturated fat
- Insulin resistance and diabetes
- Overweight
Diet and lifestyle tips
- Same approach as lowering LDL: healthy oils, daily fibre, less saturated fat
- Cut sugar and refined carbohydrates
- Regular exercise
When should you see a doctor?
Discuss a high ApoB with your doctor, who may consider medication depending on your overall risk.
Last updated
This page is for general education and is not a diagnosis. Normal ranges differ between laboratories, so always compare your result with the reference range printed on your own report, and discuss abnormal results with your doctor.