Biomarker · Cardiovascular

Non-HDL cholesterol

Non-HDL cholesterol is total cholesterol minus HDL. Why it captures all cholesterol in artery-clogging particles and how it compares with LDL and ApoB.

Written by LON6EVITY Editorial Team · Last updated

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What it is

Non-HDL cholesterol is calculated from a standard lipid panel: total cholesterol minus HDL cholesterol. It includes the cholesterol carried in LDL and other particles that can build up in artery walls. MedlinePlus lists non-HDL cholesterol among the numbers reported on a cholesterol test.

Why it is useful

Because it counts cholesterol in all atherogenic particles, non-HDL cholesterol can be more informative than LDL alone when triglycerides are high. It does not need fasting.

How it relates to ApoB

ApoB counts the number of atherogenic particles directly, while non-HDL cholesterol measures the cholesterol they carry. Both are used in cardiovascular risk assessment.

Reference ranges

Reference ranges differ between laboratories, units and methods, and depend on age, sex and your overall clinical picture. A single result is not a diagnosis — interpret it with a qualified clinician.

Factors that can affect the result

  • Diet
  • Physical activity
  • Body weight
  • Genetics
  • Diabetes

Questions people commonly ask

Do I need to fast?
No. Non-HDL cholesterol is reliable from a non-fasting sample.

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Sources

  1. Cholesterol Levels: What You Need to Know. MedlinePlus, U.S. National Library of Medicine.
  2. Blood Cholesterol. National Heart, Lung, and Blood Institute (NIH).