Ask most people how to protect their heart, and they’ll tell you to watch your cholesterol. It’s not wrong, but it’s a fraction of the picture. The full set of cardiometabolic risk factors spans cholesterol, blood sugar, blood pressure and inflammation together, not any one number in isolation. Focusing on cholesterol alone is an oversimplification, and you can miss the story that’s actually driving your risk. Here’s what a properly comprehensive cardiovascular risk assessment looks like, and the markers that decode risk, which most people in the UK have never had tested.
Why cholesterol alone is a poor predictor
Can you have a heart attack with normal cholesterol? Absolutely.
Research has found that people with already low low-density lipoprotein cholesterol (LDL-C) still developed coronary heart disease, driven by factors a lipid panel misses; that raised inflammation (hs-CRP) increases cardiovascular risk even without raised cholesterol, and that in statin-treated patients with well-controlled LDL, elevated triglycerides left a substantial residual risk untouched by LDL-lowering.
Statins lower LDL effectively, but LDL was never the lone villain. Inflammation, triglycerides, blood pressure, blood sugar, smoking, genetics, and existing plaque burden all shape whether someone develops heart disease. Statins lower one input among several – and do so effectively – but the rest keep increasing risk, regardless of how clean your cholesterol numbers look.
The QRISK3 tool
QRISK3 is the algorithm most UK GPs use to estimate your 10-year cardiovascular risk using data including age, sex, ethnicity, postcode-linked deprivation, smoking, BMI, total cholesterol: High density lipoprotein (HDL) ratio, blood pressure, diabetes, family history and several chronic conditions.
What it doesn’t include is arguably just as important: fasting insulin, hsCRP, cumulative LDL-C exposure, Lp(a), apoB and plaque burden never enter the calculation. This is one of QRISK3’s central limitations, built for population screening rather than individual artery health, so it can miss people who develop heart disease despite a low score.
Blood sugar and heart disease
Insulin resistance drives atherosclerosis largely on its own terms, independent of your cholesterol numbers. Post-meal glucose spikes trigger oxidative stress and inflammation that directly damage the blood vessel lining, and research shows that blood sugars that remain elevated after meals predict cardiovascular events, even when fasting glucose and HbA1C are within the normal range.
It’s also the pathway linking metabolic syndrome and heart disease, as elevated blood sugar, blood pressure, and triglycerides tend to co-occur – with insulin resistance as the shared upstream driver, which is why looking at all three together tells you more than any single marker alone.
Blood pressure and arterial health
Blood pressure is a snapshot of how hard your heart is working and how well your arteries are coping. Sustained elevation damages the endothelium, the single-cell lining of blood vessels that produce nitric oxide (NO), the main tool for blood pressure control. When healthy, it releases NO in response to shear stress (the friction of blood flowing past) and other signals. NO promotes vasodilation, keeps arteries flexible and is anti-inflammatory. When this system breaks down, a condition called endothelial dysfunction, the vessels become biased towards constriction, inflammation and clot formation and kick-start atherosclerosis whilst also elevating blood pressure, and the process is self-reinforcing and a key driver behind heart attacks, heart failure and stroke. It’s not only elevated blood pressure that can damage the endothelium – think high blood sugars, smoking, chronic inactivity and a diet high in processed fats.
The take home here is that you can have plaque formation, even when standard cholesterol panels look normal and arguably endothelial dysfunction is one of the earliest predictors and major drivers of long-term cardiovascular events.
Research shows a striking pattern: from a baseline blood pressure of 115/75, every 20-point rise in systolic pressure (or 10-point rise in diastolic) is associated with roughly double the deaths from ischaemic heart disease and stroke. And it’s not just the pressure reading that matters; how stiff your arteries have become is arguably an even better clue.
The Framingham Heart Study found that arterial stiffness predicted future heart problems even in people whose blood pressure looked fine. The gap between your two blood pressure numbers (pulse pressure) can hint at this stiffness, but directly measuring how stiff your arteries are via a pulse wave velocity (PWV) test gives a truer picture of how your vascular system is actually ageing. Under the NHS PWV is a specialist test requiring referral to cardiology, but is available in private cardiology practices and vascular clinics.
The advanced markers worth knowing about
A comprehensive cardiovascular risk assessment looks well beyond a standard lipid panel:
- ApoB – counts the actual number of atherogenic particles, and a growing body of evidence positions it as a stronger predictor than LDL-C alone
- Lipoprotein(a) (Lp(a)) – a genetically determined, independent risk factor (more below).
- hsCRP – your baseline inflammatory tone.
- Uric acid – commonly associated with gout, but raised uric acid is also considered a risk factor for the development of cardiovascular disease
- Fasting insulin – often abnormal years before glucose is, and will flag insulin resistance in action.
- HbA1c – your average blood sugar over roughly three months.
- Non-HDL cholesterol – a broader capture of atherogenic particles than LDL-C alone.
- Omega 6:3 ratio – a higher ratio is associated with greater risk of cardiovascular mortality
- Coronary artery calcium (CAC) score – a specialised CT scan that detects and measures calcified plaque in the coronary arteries, providing a direct measure of existing coronary atherosclerosis.
While some of these tests may be available on the NHS if there is a specific clinical indication, most are not routinely offered in UK primary care as part of standard cardiovascular risk assessment. NICE guidance focuses on QRISK3, standard lipid profiles (including non-HDL cholesterol), blood pressure, diabetes screening (HbA1c) where appropriate, and lifestyle risk factors.
Lp(a): the genetic risk factor almost nobody is tested for
Lp(a) is a cholesterol-carrying particle, research has determined that it’s 70-90% genetically determined, carried by at least one in five people at levels that raise cardiovascular risk. It acts independently of LDL, so your standard panel can look fine while Lp(a) tells a different story.
Very high Lp(a) roughly triples the risk of a first heart attack, according to a large study, with risk rising progressively at higher levels, independent of traditional risk factors: diabetes, cholesterol, hypertension, and smoking. The authors noted this risk was comparable to having two of these risk factors combined.
Unlike LDL-C, studies have shown that Lp(a) doesn’t respond to statins, and diet and lifestyle changes have only a modest effect, since levels are largely genetically set. This makes knowing your number less about changing it directly, and more about understanding your overall risk picture, so the factors you can influence, like LDL, blood pressure, blood sugar, and inflammation, can be managed more proactively as a result.
The European Society of Cardiology recommends testing Lp(a) at least once in every adult’s lifetime to identify those with high inherited levels. In the UK, it’s not yet part of routine NHS screening – it’s usually requested when there’s a reason to suspect inherited risk, such as family history of early heart disease, and access can depend on local pathways.
How to reduce cardiovascular risk through nutrition and lifestyle
The evidence base here is strong and consistent, pointing to a foundational approach built around five key pillars:
- Mediterranean-style eating pattern – research has shown eating a Mediterranean diet rich in olive oil and raw nuts reduces major cardiovascular events by around 30%.
- Combine aerobic and resistance exercise, which improve insulin sensitivity, blood pressure, and lipids and have been linked to a substantial reduction in cardiovascular disease risk.
- Prioritise sleep, which directly influences cortisol, insulin resistance and vascular inflammation, making poor sleep quality and quantity a genuine driver.
- Manage stress, a genuine and pivotal metabolic intervention, not a soft add-on. Chronic stress raises cardiovascular risk by driving up cortisol and adrenaline, fuelling inflammation and endothelial damage, increasing clotting tendency, promoting visceral fat and insulin resistance, and often triggering unhealthy coping behaviours like poor sleep, overeating, and inactivity.
- Stop smoking; quitting improves HDL and endothelial function within a matter of weeks.
These five pillars form a strong foundation. But understanding your individual risk factors and where you’re starting from is what allows that foundation to become a personalised therapeutic plan, tailored to your unique needs.
You can explore more simple diet and lifestyle strategies to optimise your heart health here.
Understanding your cholesterol matters, but cardiovascular health is about more than one number. Our focus is to identify and address all the underlying drivers affecting your health, not just one number in isolation.
At Integral Wellness, we take a genuinely comprehensive approach: advanced cardiometabolic testing (including the markers above), alongside traditional lipid panels, blood pressure, blood sugar patterns and genetics, to build a clear picture of your individual risk.
It’s the difference this makes: read how Dave came off some of his medications by 69 once we looked at his whole cardiometabolic picture, not one number.
Where appropriate, we’ll also point you to further assessments, such as a CAC scan, for direct insight into your coronary artery health.
Whether you want to get ahead of the curve with truly preventive cardiovascular optimisation, or you already know your risk (perhaps due to family history, shift work, an existing statin prescription, diabetes, high blood pressure, or an elevated hs-CRP result on a recent blood panel) book a free 20-minute call with one of our team to take a more proactive approach to your long-term heart health.
If you want to read more about the additional cardiometabolic testing we recommend at Integral Wellness, and the importance of looking beyond cholesterol you can find all the information and more by downloading our guide Cholesterol Explained.
Three ways to take the next step, depending on where you are.
Do you want to understand your numbers first?
Download our free guide Cholesterol Explained: the markers that really matter – the biology, the advanced markers, and what a full cardiometabolic picture reveals.
Are you ready to get to the bottom of it?
Our Cholesterol Nutrition Programme includes comprehensive testing, full results interpretation, and a plan built around your results, your genetics and your goals.
If you’re not sure where to start?
Book a free 20-minute call and we’ll help you work out what’s likely driving your cholesterol and whether testing is worth it.
