Cholesterol explained: Eggs, blood tests and what really drives risk

Confused about cholesterol? You’re not alone. Between eggs, blood tests and decades of mixed messaging, it’s no wonder people are unsure what actually matters. So, lets clear it up.

So, are eggs the problem?

Short answer: for most people, no.

Longer answer… cholesterol has been misunderstood for years.

Somewhere along the line, it became the villain. But biologically, it’s anything but. Every cell in your body relies on it. It’s used to make hormones, supports brain function, and even plays a role in producing vitamin D.

Your body is so invested in cholesterol that it makes most of what it needs itself, mainly in the liver. Yes, you get some from food—eggs, meat, dairy—but that’s only part of the picture.

Which brings us to the real question.

Should we still be limiting cholesterol from food?

For years, the advice was to cap dietary cholesterol at around 300 mg per day.

That guidance has thankfully disappeared.

Why? Because we now know that, for most people, eating cholesterol has very little impact on blood cholesterol levels. The body self-regulates—if you eat more, it tends to produce less, and vice versa.

So the conversation has shifted.

Not to how much cholesterol you eat……but to how your body is handling it in the first place.

What actually drives cholesterol patterns

This is where things get more interesting.

Cholesterol isn’t the starting point. It’s more like a reflection—a signal of what’s happening deeper in your metabolism.

In many cases, the real driver sits upstream: how well your body manages blood sugar and insulin.

When that system is working well, things tend to stay balanced.

But when it isn’t—when the body becomes less responsive to insulin—everything starts to shift.

This is what we call insulin resistance. And it’s far more common than most people realise.

You don’t always feel it. You don’t always see it on standard tests. But over time, it changes how your body handles energy.

Instead of using fuel efficiently, the body starts to store more of it. The liver, in particular, begins packaging excess energy into triglycerides and releasing them into the bloodstream.

And this is where cholesterol patterns start to change.

Triglycerides rise.HDL often falls.LDL particles become smaller, denser, and more prone to damage.

At that point, cholesterol isn’t the problem—it’s part of a wider story.

What about eggs specifically?

This is why eggs tend to get a free pass.

Despite containing around 180–200 mg of cholesterol each, most studies show that eating eggs in moderation does not increase cardiovascular risk in healthy individuals.

In fact, for many people, they improve diet quality—adding protein, supporting satiety, and making meals more balanced.

So if eggs are part of a real-food, balanced diet, they’re unlikely to be the issue.

When a more personalised approach matters

Of course, there are exceptions.

Conditions like Familial hypercholesterolemia affect how the body clears cholesterol from the blood, often leading to very high LDL levels regardless of lifestyle.

Similarly, those with Type 2 diabetes, existing cardiovascular disease, or significantly raised cholesterol may need a more tailored approach.

But even in these cases, the focus isn’t just on removing foods—it’s on understanding what’s driving the pattern underneath.

What your blood test is really telling you

A cholesterol test isn’t just giving you a number—it’s offering a snapshot of how your body is managing fats.

Total cholesterol gives a broad overview, but on its own, it doesn’t tell you much.

LDL is often labelled as “bad,” but that’s an oversimplification. Its role is to transport cholesterol to where it’s needed. The issue arises when those particles are more likely to become damaged, something that happens more easily in an inflamed or metabolically unhealthy environment.

HDL works in the opposite direction, helping carry excess cholesterol back to the liver. Higher levels tend to reflect a system that’s working well.

Triglycerides, though, are often the most revealing. When these are elevated, it’s usually a sign that the body is struggling to deal with incoming energy—especially from refined carbohydrates—and is converting that excess into circulating fat.

Seen together, these markers tell a story. And it’s the story that matters, not the individual number.

Why context matters more than any single result

Two people can have the same total cholesterol and very different levels of risk.

One might have higher HDL and lower triglycerides, suggesting a healthier metabolic picture. The other might show the opposite pattern, pointing towards insulin resistance and higher cardiovascular risk.

This is why looking at cholesterol in isolation can be misleading.

It’s not just about what the numbers are. It’s about what they mean in context.

Why cholesterol often rises in midlife

This is something many people notice, particularly women.

Cholesterol levels can rise in the 40s and 50s, even when diet and lifestyle haven’t changed significantly.

Hormones are a big part of this.

Oestrogen helps regulate how cholesterol is processed and cleared. As levels decline during menopause, LDL often rises and HDL may shift.

At the same time, changes in muscle mass, insulin sensitivity, and body composition can all contribute.

So a rise in cholesterol at this stage is often physiological—not simply the result of “doing something wrong.”

Looking beyond standard cholesterol numbers

When I look at cholesterol results, I’m not just interested in whether a number is high or low.

I’m asking: what’s driving it?

Often, that means looking a little deeper—particularly at markers related to blood sugar and insulin.

It’s entirely possible to have a “normal” HbA1c and still be insulin resistant. This is where additional markers like fasting insulin, alongside glucose, can give a clearer picture of what’s happening beneath the surface.

In some cases, more detailed lipid testing can also add useful context, but it’s not always necessary. What matters most is understanding the bigger picture.

Why this is really a blood sugar story

For years, cholesterol was framed as a fat problem.

In reality, it’s often more of a blood sugar and energy regulation problem.

When blood sugar is consistently high or unstable, insulin levels rise. Over time, this shifts how the body stores and transports fat, influencing triglycerides, HDL, and LDL behaviour.

When blood sugar is more stable, these patterns often improve.

Which brings us back to the bigger picture.

What actually helps

This isn’t about removing eggs or chasing a perfect cholesterol number.

It’s about supporting the systems that influence those numbers in the first place.

That usually looks like:

• Eating mostly whole, minimally processed foods

• Getting enough fibre

• Including healthy fats

• Moving regularly, including some strength training

• Sleeping well

• Managing stress

Nothing extreme. Just consistent.

What about statins?

For some people, lifestyle changes alone aren’t enough.

Statins work by reducing the liver’s production of cholesterol and can be very effective, particularly for those with existing cardiovascular disease, very high LDL, or genetic conditions like Familial hypercholesterolemia.

They’re not an either/or. Lifestyle still matters alongside medication.

A final word

Cholesterol isn’t something to fear. It’s a signal.

The real question isn’t:“Is it high?”

It’s:“Why is it high?”

When you start looking at cholesterol through the lens of metabolism, blood sugar and lifestyle, the conversation changes.

Less about restriction.More about understanding.

If you’ve had your cholesterol checked but never looked at your insulin, you are not getting the full picture and it may be worth looking a little deeper—especially at what’s happening with inflamation and insulin behind the scenes.

Book a free call with me here and lets chat about your next steps.