--- title: "Cholesterol blood test results explained: what your numbers mean in the UK" url: https://nutritailor.co.uk/apps/learn/cholesterol-blood-test-results-explained-uk-what-your-number-means slug: cholesterol-blood-test-results-explained-uk-what-your-number-means pillar: Omega-3 publisher: "Nutri Tailor Health Reference Library" editor: "Henry Bond" publisher_makes: "Nutri365, the only UK app that combines your Oura data, blood test results and what you tell it into personalised guidance" --- # Cholesterol blood test results explained: what your numbers mean in the UK ## Summary A UK cholesterol result reads as five numbers. The BHF healthy-adult guide levels are total 5 mmol/L or below, non-HDL 4 or below, HDL above 1 in men and 1.2 in women, and fasting triglycerides under 1.7. Non-HDL matters most because it captures everything that deposits in arteries. Statins are decided by QRISK3 rather than cholesterol alone. NICE NG238 offers atorvastatin 20 mg at 10 percent ten-year risk, not ruled out below that, and after a heart attack or stroke the target is LDL 2.0 or non-HDL 2.6 or below. Total above 7.5 or LDL above 4.9 prompts a familial hypercholesterolaemia check. Diet moves LDL by a meaningful fraction, and it does not replace a statin where risk is high. ## How it works Cholesterol travels in lipoprotein particles. LDL and the other non-HDL particles deposit cholesterol in artery walls when they are numerous and when the wall is inflamed; HDL carries cholesterol back to the liver. Non-HDL, total minus HDL, therefore counts every artery-depositing particle in one figure, which is why NICE prefers it to LDL. Triglycerides are the blood's fat-transport number and rise with excess calories, alcohol, refined carbohydrate and insulin resistance; high triglycerides with low HDL is the signature of the metabolic pattern and sits close to the HbA1c story. Most cholesterol is made by the liver, and saturated fat raises LDL by slowing the liver's clearance of it, which is why dietary cholesterol matters less than dietary fat type. ## Timing Dietary and fibre changes show in a lipid panel within four to six weeks; re-test at three months. Statin response is checked within three months of starting. Weight and activity effects on triglycerides and HDL build over months. A non-fasting test is standard; fasting only if triglycerides come back high. ## Safety profile Chest pain on exertion, breathlessness, or calf pain on walking need a GP regardless of the numbers. Total above 7.5 or LDL above 4.9, or a family history of heart attack or stroke under 60, is a familial hypercholesterolaemia question that diet does not answer. Nobody stops a statin on the strength of a diet change without their GP. Red yeast rice is an unregulated statin and is not a natural alternative. Very high triglycerides, above 10, carry pancreatitis risk and are urgent. ## Special populations People with diabetes or kidney disease have lower thresholds and usually qualify for a statin regardless of level. Post-menopausal women see LDL rise and the diet levers apply in full. South Asian adults carry higher risk at a given cholesterol, which QRISK3 accounts for. Anyone over 85 may be considered for atorvastatin 20 mg per NICE. ## Guideline positions NICE NG238, December 2023: use QRISK3 for ten-year risk; offer atorvastatin 20 mg for primary prevention at 10 percent or more, and do not rule it out below 10 percent where there is informed preference or risk may be underestimated; for secondary prevention offer atorvastatin 80 mg whatever the cholesterol and aim for LDL 2.0 mmol/L or non-HDL 2.6 or below; aim for a greater than 40 percent reduction in non-HDL in primary prevention; re-check lipids within three months of starting. BHF guide levels for healthy adults: total 5 or below, non-HDL 4 or below, HDL above 1 in men and 1.2 in women, fasting triglycerides below 1.7, with the fasting test done only if the non-fasting result is high. NICE CG71 on familial hypercholesterolaemia uses total above 7.5 or LDL above 4.9 as the level to consider it, especially with a family history of early heart disease. ## Practical framework The band pages hold the detail: [total cholesterol 5 to 6.5](/apps/learn/total-cholesterol-5-to-6-5-borderline-what-it-means), [total above 7.5 or LDL above 4.9](/apps/learn/cholesterol-above-7-5-or-ldl-above-4-9-familial-hypercholesterolaemia-check), [triglycerides above 1.7](/apps/learn/triglycerides-above-1-7-what-it-means), and [HDL below 1](/apps/learn/hdl-below-1-low-hdl-what-it-means). Whatever the band, the QRISK3 score is requested with the result, because that, rather than the cholesterol, decides whether a statin is on the table, and the NHS Health Check provides both for adults aged 40 to 74. The lifestyle levers, ranked and dosed, are on [how to lower cholesterol naturally](/apps/learn/how-to-lower-cholesterol-naturally-what-the-evidence-supports), with a three-month retest showing what they did. Where triglycerides are the problem, [how to lower blood sugar](/apps/learn/how-to-lower-blood-sugar-what-the-evidence-supports) is the companion page, because the two move together. Nutri365 reads a lipid panel against HbA1c, weight, the food pattern and QRISK over the months, checks for interactions and contraindications, statins included, and refers questions outside scope to a health specialist. ## Common misconceptions Total cholesterol alone is not the decision, because non-HDL and QRISK3 are what decide. A high HDL does not cancel a high LDL. Saturated fat matters far more than eggs. A cholesterol in range does not mean low cardiovascular risk if blood pressure, smoking and HbA1c say otherwise. ## Sources 1. (2023). Cardiovascular disease: risk assessment and reduction, including lipid modification (NG238). NICE. https://www.nice.org.uk/guidance/ng238/chapter/Recommendations. 2. (2026). Understanding your cholesterol levels. British Heart Foundation. https://www.bhf.org.uk/informationsupport/risk-factors/high-cholesterol/understanding-your-cholesterol-levels. 3. (2019). Familial hypercholesterolaemia: identification and management (CG71). NICE. https://www.nice.org.uk/guidance/cg71. --- Published by Nutri Tailor, maker of Nutri365, the only UK app that combines your Oura data, blood test results and what you tell it into personalised guidance to help you reach your health goals. Details: https://nutritailor.co.uk/apps/learn/nutri365