The Problem With Simplifying LDL Cholesterol Interpretation

1. More Information Isn’t Always More Helpful

Part of the confusion around LDL may come from how much information is now available and how differently it’s interpreted. Everyone seems to know or think something about cholesterol, and opinions often don’t add up. This can lead to overwhelm and a freeze-and-fawn response, keeping you from taking steps to monitor and improve your heart health. 

While some experts emphasize deeper testing and nuance, others argue that more complexity doesn’t always help.

Dr. Austin Shuxiao, an internal medicine physician, suggests that for most people, simpler guidance may actually be more useful.

“The general public has no benefit from information other than quantifiable numbers and set targets for their LDL,” he says. 

From this perspective, a standard lipid panel is often enough to start. More advanced markers like ApoB can add precision but don’t always change what matters most: lifestyle.

Rather than focusing on increasingly detailed biomarkers, Dr. Shuxiao emphasizes that most people benefit more from addressing the fundamentals.

“Most people should focus more on lifestyle modifications and how they can achieve their cholesterol targets with improved diet, exercise, soluble fiber intake, weight reduction, and reducing saturated fat,” he explains. 

For many, the most meaningful improvements still come from consistent, foundational habits rather than more data alone.

Read Next: How to Keep Your Heart Healthy & Strong

2. The Definition of “Normal” Has Shifted

At the same time, what’s considered “normal” cholesterol has changed dramatically over time.

What was once considered acceptable decades ago would now be flagged as elevated, especially in higher-risk individuals (Waters, 2019). 

This isn’t arbitrary. Early guidelines were based largely on population averages, while newer ones are grounded in long-term outcome data (Waters, 2019). 

But from the outside, it can feel like the goalposts keep moving, which adds to the uncertainty.

Read Next: 4 Root Causes of High Cholesterol (Myths and Facts)

3. Modern Life Doesn’t Match Human Biology

Adding another layer, cholesterol levels today are very different from those seen in preindustrial populations.

The average person today has much higher cholesterol levels than a person living in premodern times. Hunter-gatherer societies had significantly lower cholesterol levels, along with different diets, lifestyles, and gut microbiomes.

Studies suggest that the normal LDL cholesterol range is 50 to 70 mg/dl for native hunter-gatherers, healthy human newborns, free-living primates, and other wild mammals—all of whom do not develop atherosclerosis. That’s about a third of the average cholesterol levels in the population today (Waters, 2019; CDC; O’Keefe et al, 2004). 

While higher meat consumption in Western diets is linked with increased risk for heart-related mortality, people in hunter gatherer societies had virtually no heart disease. Yet, they got most of their energy from animal food (Cordain et al., 2002).

But, their main energy source was protein and carb intake was low. While fat intake was high, the fats were different: lots of MUFA and PUFA foods with a lower omega-6/omega-3 fatty acid ratio. Hunter gatherers also had high intakes of antioxidants, fiber, and vitamins, along with low salt intake. They ate fermented foods and were in contact with healthy soil. And their lifestyle was one of more movement, less stress, and no smoking (Cordain et al., 2002).

It’s likely that higher gut microbiome diversity and specific cholesterol-metabolizing bacteria played a role in lower cholesterol levels in hunter-gatherers compared to Western populations. Hunter-gatherers such as the Hadza harbor a more diverse array of gut bacteria—averaging over 700 species compared to 277 in urban Californians—that are adept at breaking down dietary cholesterol and fiber (Conroy, 2023).

This raises important questions but also creates confusion when people try to apply those comparisons directly to modern life, where diet, environment, and stress are entirely different. 

While we may be able to learn a lot from traditional hunter-gatherer societies about health, we cannot simply morph into a hunter-gatherer in modern society. We can, however, take steps to improve aspects of our lifestyle and diet that are within our control, focusing on small, sustainable changes rather than trying to recreate an entirely different way of living.

Read Next: 11 Foods that Actively Lower Your Cholesterol

4. Conflicting Narratives Are Louder Than Ever

At the same time, alternative perspectives, like those from the keto and carnivore communities, have challenged conventional thinking.

Carnivore and keto diet proponents often argue that high LDL levels are not inherently harmful when metabolic health is good and carbohydrate intake is very low. 

Some have claimed that there’s a "Lean Mass Hyper-Responder" phenotype: lean, metabolically healthy, and physically active individuals who adopt a high-fat diet and experience a massive increase in LDL (sometimes over 200 mg/dL). Proponents, including Dr. Ken Berry, claim that this is “a sign of efficient fat transport (fuel)” rather than cardiovascular disease. 

A key argument is that low-carb diets shift LDL particles from "small, dense" (more dangerous) to "large, buoyant" (less likely to penetrate artery walls). 

However, this directly contradicts the scientific and medical perspective. Meanwhile, no long-term, randomized controlled trials have confirmed that high LDL, regardless of particle size, is safe. One recent keto diet study claiming that ApoB does not predict plaque was retracted due to concerns regarding the integrity of data and analyses used (Soto-Moto et al., 2025). 

Critics have also questioned whether lowering LDL cholesterol “too much” can have downsides. Some are concerned that pharmaceutical companies producing cholesterol-lowering drugs have powerful financial incentives to keep lowering the normal LDL cholesterol range. This messaging has added to the controversy and confusion people face. 

While arguments may be flawed or lacking evidence, the carnivore/keto movement and pharma skepticism has led to something positive: a place to start reexamining LDL cholesterol more openly. 

Read Next: Facts About Heart Disease & High Cholesterol You Should Know

What This Means for You

When you put it all together, it’s easier to see why LDL feels so confusing:

• More data, but not always clearer guidance
• Changing definitions of “normal”
• Big differences between modern and traditional lifestyles
• Strong, conflicting opinions from different camps

For most people, this means you don’t need perfect understanding or advanced testing to get started. 

A more useful first step is simply:

• Knowing your baseline numbers 
• Understanding your overall risk with your healthcare provider, and
• Focusing on consistent, sustainable lifestyle habits that support metabolic, gut, and heart health

Because, while the science can feel complex, the practical steps you can take are often much simpler.

To understand how experts actually interpret LDL in practice, start here.

At Microbiome Plus+, we’ve also written about the gut-first approach to heart health, which takes into account the impact of various dietary supplements on both the gut microbiome and heart health. 

About Our Contributing Experts

Dr. Austin Shuxiao, MD
Dr. Austin Shuxiao is a board-certified Internal Medicine physician based in New York City with clinical experience spanning the ICU, emergency medicine, ambulatory care, and inpatient medicine. He is also the founder of Peach IV, a mobile IV therapy company serving NYC. Dr. Shuxiao has contributed expert commentary on wellness trends, preventive health, and consumer-facing medical education.

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