בקצרה: הנקודות החשובות
The “Bad Cholesterol” Myth
For the last sixty years, LDL cholesterol has been widely known as the “bad cholesterol,” considered highly detrimental to health because of its supposed role in causing heart attacks and atherosclerosis (hardening of the arteries). However, in recent years, this “cholesterol theory” has come under serious scrutiny as new research shows it doesn’t hold up to reality. In fact, for most people, the opposite appears to be true: there is an inverse relationship between high LDL and all-cause mortality.
In other words, people with high LDL cholesterol tend to live longer than people with low LDL cholesterol.
The Historical Battle: Cholesterol vs. Sugar
To understand how we arrived at our current beliefs, we have to look back to the last century when two different theories emerged to explain the cause of heart disease and atherosclerosis:
1. The Cholesterol Theory
Proposed by Ancel Keys, this theory hypothesized that high cholesterol was a significant factor in the development of heart disease. Keys was a charismatic figure who drew many followers, and he published statistics that appeared to support his hypothesis. This theory ultimately won the public and medical debate at the time.
2. The Sugar Theory
Proposed by John Yudkin, this theory suggested that sugar consumption was the real cause of these diseases. It’s important to clarify that Yudkin was referring to table sugar (sucrose, such as cane sugar, white sugar, and brown sugar), not the natural sugars found in fruits or the complex carbohydrates in grains and vegetables.
Re-evaluating Statins and Their Risks
The core argument challenging the old paradigm is this: high cholesterol does not cause heart disease, atherosclerosis, or diabetes. This brings into question the widespread use of statins, the most common medication prescribed to lower high cholesterol. Statin use is linked to a 50% increased risk of developing diabetes and is associated with many other side effects. Given that cholesterol itself may not be the problem, the rationale for taking potentially harmful medications to lower it becomes questionable.
It is important to note that this article is for informational purposes and does not replace consultation with a doctor. You should never change or stop a prescribed medication without professional medical guidance.
When Should High Cholesterol Be a Concern?
While moderately high cholesterol may not be a risk, at what point should levels be addressed? Research suggests a negative impact is only seen in individuals with total cholesterol levels above 380 mg/dL. However, from a clinical perspective, I recommend implementing changes to diet, reducing stress, and supporting the liver when levels rise above 280 mg/dL.
What’s Next? Uncovering the Real Culprits
If cholesterol isn’t the primary cause of heart disease, what is? To truly protect our cardiovascular health, we must look beyond a single blood marker and investigate the real root causes. In Part 2 of this series, we will explore the roles of sugar, chronic inflammation, gut health, and other overlooked factors in the development of heart disease.