Apolipoprotein B (ApoB) Blood Test

Item # LC167015

Apolipoprotein B (ApoB) Blood Test  - Life Extension

Apolipoprotein B (ApoB) Blood Test

Item # LC167015

The apolipoprotein B (ApoB) blood test measures apolipoprotein B100, the ApoB protein that is associated with three different forms of potentially dangerous cholesterol: low-density lipoprotein (LDL), very low-density lipoprotein (VLDL) and intermediate-density lipoprotein (IDL).

Research1-6 has found that ApoB may be a better predictor of heart disease than a standard lipid profile ordered by your doctor!

Apolipoprotein B (ApoB) is a protein involved in the metabolism of lipids and is the main protein constituent of all non-HDL cholesterol in your blood. These ApoB containing lipoprotein particles are the most damaging to your arteries and include not only LDL cholesterol but, VLDL and IDL… ALL of which promote atherosclerosis!

Since each ApoB-containing lipoprotein particle contains one ApoB molecule, measuring ApoB levels gives a good approximation of the total number of atherogenic particles in your blood. The greater the number, the greater the risk of more cholesterol ending up in your artery wall and the greater the risk of artery calcification and heart attack.

Why measure only LDL? This test provides the critical particle count number you need for ALL of your bad ApoB!


This test may be done fasting or 2-6 hours after eating. Both ways provide valuable information, though 2-6 hours after a meal provides a more realistic assessment of the state of your blood in everyday life. Stay hydrated and take your medications as prescribed.


This test examines levels of Apolipoprotein B100, the ApoB protein associated with LDL, VLDL, and IDL


  1. JAMA Cardiol. 2022;7(3):250-256.
  2. JAMA Cardiol. 2022;7(3):257-258. 
  3. Journal of the American Heart Association. 2018;7:e009778
  4. Curr Opin Lipidol. 2018 Feb;29(1):51-52.
  5. F1000Res. 2017; 6: 134.
  6. Curr Opin Lipidol. 2016 Oct;27(5):473-83.

The laboratory services are for informational purposes only. It is not the intention of National Diagnostics, Inc and Life Extension to provide specific medical advice but rather to provide users with information to better understand their health. Specific medical advice including diagnosis and treatment will not be provided. Always seek the advice of a trained health professional for medical advice, diagnosis or treatment.

Both the physician and the testing laboratory are independent contractors with whom National Diagnostics, Inc makes arrangements for your blood tests. Neither National Diagnostics, Inc or Life Extension will be liable for any acts or omissions of the physician, the testing laboratory, or their agents or employees.

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Life Extension blood testing is fantastic! Simple, efficient, good price.


This test helps me monitor my health in between dr. appointments and allows me to have informed conversations with my doctor.


Life Extension is a great resource to order lab tests that may be difficult to get from your doctor or through insurance. They are reasonably priced, easy to access, and fast and easy to get results. You can even consult with a knowledgeable Life Extension support person if you want to go over the results.


Apolipoprotein B (ApoB) Blood Test


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