Glossary term Heart & Blood

LDL cholesterol

In one sentence

LDL is the lipoprotein fraction that delivers cholesterol to tissues — and deposits it in artery walls when persistently high.

LDL is the lipoprotein fraction that delivers cholesterol to tissues — and deposits it in artery walls when persistently high.

Why it matters

Decades of evidence tie LDL levels to heart attacks and strokes, and lowering it reduces risk. Targets are personal: the higher your overall cardiovascular risk, the lower the goal your clinician will set.

How to read yours

Never in isolation. Blood pressure, smoking, diabetes and family history decide what your number means and whether lifestyle change alone is enough.

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Patient education

Definitions explain terms; they do not interpret your individual results or replace a consultation.

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