Statins Are Overprescribed. Cholesterol Is Not Your Enemy.

I want to start with something that does not get said enough in a doctor's office.

Cholesterol is not trying to kill you.

It is not a disease. It is not a toxin. It is not something your body produces by accident or in error. Cholesterol is one of the most fundamental molecules in human biology, and the decades-long campaign to drive it as low as possible with medication has caused a great deal of harm to people who were told they had no other choice.

I am not anti-medicine. I am pro-truth. And the truth about cholesterol, statins, and heart disease is considerably more complicated than the number on your lab report suggests.

What Cholesterol Actually Does

Before we talk about lowering cholesterol, it is worth understanding why your body makes it in the first place. Your liver produces cholesterol every single day because your body requires it to function. Every cell in your body depends on it.

Cholesterol is a structural component of every cell membrane you have. It keeps membranes stable, maintains their fluidity, and regulates which proteins and signals can move in and out of the cell. Without adequate cholesterol, cell membranes cannot do their job.

It is also the raw material your body uses to produce steroid hormones. Testosterone, estrogen, progesterone, cortisol, and aldosterone are all made from cholesterol. If you suppress cholesterol production aggressively, you are working against your own hormonal system. For women navigating perimenopause and beyond, when sex hormone production is already shifting, this is not a trivial consideration.

Cholesterol is the precursor to vitamin D. Your skin converts cholesterol into vitamin D when exposed to sunlight. It is essential to bile acid production, which is how your body digests fat. It plays a role in nerve conduction and brain function. Your brain, which is roughly sixty percent fat, contains about twenty-five percent of the body's total cholesterol.

This is not a molecule you want to wage war on. This is a molecule you want to understand.

The Cholesterol Hypothesis and Where It Went Wrong

The idea that high cholesterol causes heart disease took hold in the 1960s largely through the work of Ancel Keys, a physiologist who built his career around the fat-heart hypothesis. The story was simple and appealing: saturated fat raises cholesterol, cholesterol clogs arteries, clogged arteries cause heart attacks. Eat less fat, lower your cholesterol, live longer.

Dr. Malcolm Kendrick, a British GP and author of The Great Cholesterol Con, has spent years examining the evidence behind this hypothesis and found it wanting. His position is direct: high cholesterol levels do not cause heart disease, and the evidence that saturated fat meaningfully raises cardiovascular risk has never been as solid as the guidelines suggested. The countries with the lowest saturated fat consumption do not have the lowest rates of heart disease. The data does not cooperate with the narrative.

What actually drives arterial damage is a more complex picture involving insulin resistance, chronic inflammation, elevated blood sugar, and oxidative stress. These are the conditions that injure the arterial wall and set the stage for plaque formation. Cholesterol shows up at the site of that injury as part of the repair process. Blaming cholesterol for heart disease is like blaming the paramedics for the car accident because they keep showing up at the scene.

The Problem with Statins

Statins are HMG-CoA reductase inhibitors. They work by blocking the enzyme your liver uses to produce cholesterol. They are effective at lowering LDL numbers, and for people who have already had a heart attack, there is evidence they reduce the risk of a second one. That is the narrow case where the data holds up reasonably well.

The problem is that statins are not primarily prescribed to people who have had heart attacks. They are prescribed to people who are getting older and whose cholesterol numbers have crossed an arbitrary threshold. They are handed to women routinely, despite the fact that the evidence supporting statin use in women without established heart disease is weak. They are prescribed to people in their fifties and sixties as a default protocol for aging, as if rising cholesterol in midlife is a malfunction rather than a biological process.

The side effects are real and they are underreported in the conversations most people have with their doctors. Muscle pain is the most common complaint. Statins work by blocking a pathway that also depletes CoQ10, a compound essential for energy production in muscle cells. The result for many people is muscle weakness, fatigue, and aching that gets attributed to age rather than the medication. In more serious cases, statin-induced muscle damage can be severe enough to cause rhabdomyolysis, a breakdown of muscle tissue that can damage the kidneys.

Statins are also linked to an increased risk of developing type 2 diabetes. The FDA has issued a formal warning on statin labels acknowledging that blood glucose can rise with statin use. For people who are already metabolically compromised, already showing signs of insulin resistance, already carrying excess weight, this is a meaningful risk. The very population most often prescribed statins is the population most vulnerable to this particular side effect.

There are also reported cognitive effects. Memory complaints and brain fog in statin users have been documented enough that they appear on FDA warning labels, and the mechanism makes sense given how much the brain depends on cholesterol for normal function.

The Number That Actually Matters

If you want a reliable signal of cardiovascular risk, stop staring at your LDL and start looking at your triglycerides.

Triglycerides are produced when your liver processes excess fructose and refined carbohydrates. High triglycerides combined with low HDL is one of the clearest metabolic signatures of insulin resistance, and insulin resistance is the actual driver of the arterial damage that leads to heart disease. This pattern tells you far more about your cardiovascular future than a total cholesterol number or even an LDL number in isolation.

You can have high LDL and excellent triglycerides, high HDL, low fasting glucose, and low fasting insulin, and your cardiovascular risk profile may be genuinely low. You can have normal LDL and terrible triglycerides, low HDL, and elevated fasting insulin, and be in real metabolic trouble. The cholesterol-centric framework does not capture this distinction. A food-first approach to metabolic health does.

What to Do Instead

Remove added sugar and refined carbohydrates from your diet. This is the most direct lever you have on triglycerides, insulin levels, and the inflammatory environment that drives arterial damage. It is also the intervention that mainstream cardiology has been slowest to embrace, in part because there is no drug to sell alongside it.

Eat enough protein. Muscle mass is metabolically protective and it does not maintain itself without adequate dietary protein. People who lose muscle as they age, which happens faster on low-protein diets and sedentary lifestyles, are not doing their cardiovascular system any favors.

Get your fasting insulin tested. Most standard metabolic panels do not include it. Request it. A fasting insulin above ten is worth investigating. Above fifteen is a clear signal that something needs to change. This number will tell you more about your heart disease risk than your total cholesterol ever will.

Understand that cholesterol is not your enemy. It is a molecule your body produces on purpose, in service of dozens of essential functions, and it has been blamed for a problem that sugar, refined carbohydrates, and metabolic dysfunction created.

The conversation about heart health deserves a better framework than the one most people are handed in a ten minute appointment. You deserve to ask harder questions and expect more complete answers.

FAQ

Are statins overprescribed?
Many researchers and clinicians argue that statins are prescribed far beyond the population where evidence of benefit is strongest, which is people who have already had a cardiovascular event. Their routine use in healthy older adults to manage cholesterol numbers remains contested.

Is high cholesterol dangerous?
Cholesterol is an essential molecule that the body produces for critical functions including hormone production, cell membrane integrity, and vitamin D synthesis. The relationship between total cholesterol and heart disease risk is far more complex than the standard narrative suggests, and high cholesterol in isolation is not a reliable predictor of cardiovascular events.

What are the side effects of statins?
The most common side effects include muscle pain, weakness, and fatigue. Statins are also associated with an increased risk of new-onset type 2 diabetes, elevated liver enzymes, and reported cognitive effects including memory complaints. The FDA requires statin labels to carry warnings about both blood glucose elevation and memory effects.

What causes heart disease if not cholesterol?
Insulin resistance, chronic inflammation, elevated blood sugar, and oxidative stress are more accurate drivers of arterial damage than cholesterol levels alone. These conditions are primarily driven by a diet high in sugar and refined carbohydrates, not dietary fat or cholesterol.

What numbers should I focus on for heart health?
Fasting triglycerides, HDL cholesterol, fasting glucose, and fasting insulin are more informative markers of cardiovascular risk than LDL or total cholesterol. A triglyceride to HDL ratio below two is generally a favorable sign. Fasting insulin below ten suggests reasonable insulin sensitivity.

References

Kendrick M. The Great Cholesterol Con: The Truth About What Really Causes Heart Disease and How to Avoid It. John Blake Publishing; 2007.

StatPearls. Physiology, Cholesterol. National Library of Medicine. NCBI Bookshelf. NBK470561.

Bhatt DL, et al. Statin-Associated Side Effects. Journal of the American College of Cardiology. 2016;67(20). doi:10.1016/j.jacc.2016.02.071.

U.S. Food and Drug Administration. FDA Drug Safety Communication: Important safety label changes to cholesterol-lowering statin drugs. fda.gov.

Nayor M, Vasan RS. Recent update to the US cholesterol treatment guidelines. Circulation. 2016;133(18):1795-1806.

Lustig RH. Fat Chance: Beating the Odds Against Sugar, Processed Food, Obesity, and Disease. Hudson Street Press; 2012.

This article is for informational and educational purposes only. It does not constitute medical advice and is not intended to diagnose, treat, cure, or prevent any condition. Please consult a qualified healthcare provider before making changes to your diet or medication regimen, particularly if you are currently taking prescribed medication.