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Marker · Educational ranges, not diagnosis

LDL cholesterol

Also called LDL-C, calculated LDL.

The cholesterol cargo inside LDL particles, often calculated from a standard lipid panel.

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  • Coach, not doctor. Aaron Cuha is a coach, not a doctor. No clinical credential is claimed for him, or for these pages. A number on a panel is a conversation starter with a clinician, not a DIY diagnosis. Nothing here is a prescription, a protocol, or a reason to start or stop a medicine. Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.
  • Affiliate disclosure. Knowledge stays free. Every page, every guide and every tool is free to read and stays free. Lab-panel affiliate links, when they exist, live on /bloodwork/partners and print what is earned on the row, or that nothing is earned today. This glossary does not sell panels. The Archive does not order labs.
  • Three lab stories stay separate. /bloodwork is the human panel. /testing and /prices/labs are peptide certificate chemistry. /supplements/quality is what is in the bottle.

Why a longevity audience asks

It is the number most people already have. It is not the same as particle number (ApoB) or particle size (pattern B).

How a coach reads it

Clinician targets depend on risk. A calculated LDL can be wrong when triglycerides are very high. Non-HDL and ApoB fix some of that.

Units on this page: mg/dL

When it is low

On treatment, low LDL-C is often the point. Off treatment, very low values still deserve a clinician look if they are new.

When it is high

A reason to talk about diet, weight, and medicines. Psyllium has a modest LDL-lowering meta-analysis as an adjunct to diet. That is a surrogate, not an event trial of psyllium.

Easy ways to misread it

  • Friedewald calculation fails when triglycerides are high.
  • LDL-C can look fine when ApoB is not.

What to ask a clinician

Ask whether the LDL is calculated or direct, and whether ApoB should sit beside it.

Related supplements

Related when-playbooks

Sources on this page