Cholesterol Levels Explained: What Is a Normal Range in the UK?

If you have just been given a cholesterol result, the first question is almost always the same: is this number normal? This guide explains the typical UK reference ranges, what each part of a lipid profile means, and when a result is worth acting on.

It is part of our wider guide to understanding your blood test results. If you would like your own numbers checked, we offer private blood tests in Hampshire with results in 24 to 48 hours.

Typical UK cholesterol targets

UK guidance generally works to the following targets for healthy adults. Your own report may differ slightly, because reference ranges vary between laboratories, and your personal targets may be lower if you have existing heart disease, diabetes or a high overall risk score.

What each number actually means

Total cholesterol is the overall amount in your blood. It is a useful headline but a poor story on its own, because it lumps together the type you want less of and the type you want more of.

LDL cholesterol carries cholesterol to your arteries, where excess can build up in the walls and narrow them. This is the number most treatment aims to lower.

HDL cholesterol does the opposite, helping carry cholesterol back to the liver to be removed. Here, higher is better, which is why a low HDL can be a concern even when your total looks acceptable.

Non-HDL cholesterol is your total minus your HDL. It captures all the harmful types in one figure and is increasingly the preferred measure in UK practice.

Triglycerides are a separate blood fat, strongly influenced by diet, alcohol and weight, and linked to both heart and metabolic health.

Why “normal” is not the whole answer

Two people can have identical total cholesterol and completely different levels of risk. What matters alongside the numbers is your blood pressure, whether you smoke, your weight, family history, age, and whether you have diabetes. Cholesterol is one input into overall cardiovascular risk, not a verdict on its own.

This is why a result is best interpreted in conversation rather than read off a chart. Every cholesterol test we carry out includes a pharmacist consultation for exactly that reason.

What to do if your cholesterol is high

Raised cholesterol is common and often very responsive to change. Practical steps that make a measurable difference include:

• replacing saturated fats with unsaturated ones, such as olive oil, nuts and oily fish;
• increasing soluble fibre from oats, beans, lentils and fruit;
• regular moderate activity, which tends to raise HDL;
• reducing alcohol, which particularly affects triglycerides;
• stopping smoking, which lowers HDL and compounds arterial damage.

If levels stay high despite these changes, or your overall risk is elevated, that is a conversation to have with your GP about whether medication such as a statin is appropriate.

Do you need to fast before a cholesterol test?

Many modern lipid tests do not require fasting, but some do, particularly where triglycerides are the focus. Because it varies, we confirm exactly what you need to do when you book, so you are not caught out.

Frequently asked questions

Is 5.7 total cholesterol high?
It is above the general UK target of 5.0, so it would usually be considered mildly raised. Whether it needs action depends on your LDL, HDL and overall cardiovascular risk, which is why the full profile matters.

Can I lower cholesterol without medication?
Often yes, particularly if levels are only mildly raised. Diet, activity, alcohol and smoking all have a measurable effect.

How often should I check my cholesterol?
Every few years for most healthy adults, or more frequently if levels are raised, you have other risk factors, or you are tracking the effect of changes you have made.

Where can I get a cholesterol test in Hampshire?
At our Davies Pharmacy phlebotomy centre in Havant. See all our blood tests for details.

This guide is general information and not a diagnosis or a substitute for advice from your GP. Reference ranges vary between laboratories and personal targets vary between individuals. If you have urgent or serious health concerns, please contact your GP or NHS 111.