Total Cholesterol

What it is

Total cholesterol is the sum of all cholesterol in your blood, including HDL, LDL and a portion of triglyceride-rich particles.

Why it matters

It is a quick overview of your cholesterol status, though the breakdown into HDL and LDL tells the fuller story.

What high values can mean

A higher value can reflect raised LDL but sometimes also high HDL, so it is always read together with the sub-fractions.

What low values can mean

A lower value is usually favourable, interpreted by a clinician alongside HDL and LDL.

How to improve it

A heart-healthy diet, regular activity, weight management and, when advised, medication keep total cholesterol in a healthy range.

Food & lifestyle

Vegetables, whole grains, legumes, nuts and fish help; saturated and trans fats and excess refined carbs push it up.

Preparing for the testFasting required

Part of a lipid panel. Fasting (9–12 h) may be requested, though non-fasting is increasingly accepted — follow your lab.

When to talk to a doctor

Review elevated total cholesterol with a doctor, who will look at the HDL/LDL breakdown and your overall risk.

Related markers

• HDL Cholesterol
• LDL Cholesterol
• Non-HDL Cholesterol
• Triglycerides

Sources

• MedlinePlus (NIH)
• Testing.com (AACC)

Content reviewed on June 26, 2026