Non-HDL cholesterol is the sum of LDL ("bad") and VLDL cholesterol minus HDL ("good") cholesterol. These lipoproteins transport fats in your bloodstream, but excess LDL and VLDL contribute to plaque buildup in arteries.
Cholesterol travels through your bloodstream in particles called lipoproteins. These include:
When LDL or VLDL levels are high, they can form plaques in artery walls, increasing cardiovascular disease risk.
| Type | Function | Risk Level |
|---|---|---|
| LDL | Delivers cholesterol to cells | High risk when elevated |
| VLDL | Transports triglycerides | High risk when elevated |
| Non-HDL | Total of LDL + VLDL - HDL | High risk when elevated |
| HDL | Removes excess cholesterol | Protective when high |
A non-HDL level below 130 mg/dL is generally considered ideal. Levels above 160 mg/dL increase heart disease risk.
Many people confuse non-HDL with LDL, but non-HDL includes all harmful particles, not just LDL. Similarly, VLDL is often overlooked, though it plays a key role in triglyceride transport.
For example, if your LDL is 100 mg/dL and HDL is 50 mg/dL, your non-HDL would be 150 mg/dL (not 100 mg/dL).
During my annual checkup, my lipid panel showed LDL at 110 mg/dL, HDL at 45 mg/dL, and triglycerides at 120 mg/dL. My doctor calculated non-HDL as 155 mg/dL (110 + 120/5 - 45). Though my LDL was normal, my non-HDL was borderline high, prompting dietary changes.