All answers
Answer · biomarkers
Non-HDL cholesterol vs LDL cholesterol — what's the difference?
Short answer
LDL cholesterol measures one atherogenic fraction; non-HDL captures all atherogenic cholesterol (LDL plus VLDL plus remnants). Non-HDL is preferred when triglycerides are high.
Reviewed by Dr. Laura PurdyMay 29, 2026
Full answer
LDL cholesterol — directly measured or calculated by the Friedewald equation — captures the cholesterol in low-density lipoprotein particles. Non-HDL cholesterol, calculated as total cholesterol minus HDL, captures LDL plus VLDL plus remnant cholesterol — all atherogenic fractions. When triglycerides exceed 200 mg/dL, calculated LDL-C becomes unreliable and non-HDL is preferred. Within oMeds review, both are reported on every lipid panel and interpreted alongside ApoB.
Educational. Not a substitute for individualized provider review.
References & sources
- ApoB — Primary source · oMeds
- Reviewed by Dr. Laura Purdy, MD, MBA · Clinical Director, oMeds · Last reviewed 2026-05-29
Related answers
What is non-HDL cholesterol?
Non-HDL cholesterol equals total cholesterol minus HDL cholesterol, capturing all atherogenic lipoprotein cholesterol in one number.
What is ApoB?
ApoB (apolipoprotein B) counts every atherogenic lipoprotein particle in the bloodstream. It is a stronger predictor of cardiovascular events than LDL cholesterol alone because it counts particles, not cargo. Modern cardiometabolic optimization treats ApoB as the primary lipid endpoint.
Primary source
ApoB