The Truth About Cholesterol Why the “Good vs Bad” Story Is Too Simple
For decades we have been told a very simple story about cholesterol. HDL is the good cholesterol. LDL is the bad cholesterol. If LDL is high you are in danger and if HDL is high you are protected but like many things in health, the truth is far more nuanced.
Cholesterol itself is not the villain. In fact cholesterol is essential for life. Every single cell membrane in your body contains cholesterol. Your brain is rich in it, your body uses cholesterol to produce hormones such as estrogen, progesterone, testosterone and cortisol and it is also necessary for making vitamin D and bile acids that allow us to digest fats.
In other words, without cholesterol we would not survive so how did cholesterol become public enemy number one?
The real issue is not cholesterol alone: it is how cholesterol is transported in your bloodstream and what is happening in your body that affects that transport system.
LDL stands for Low Density Lipoprotein and HDL stands for High Density Lipoprotein. These are not types of cholesterol but are the delivery vehicles that carry cholesterol through your blood.
Low Density Lipoprotein carries cholesterol from your liver out to the tissues that need it. Every cell in your body relies on cholesterol for structure and hormone production, so this delivery system is essential. High Density Lipoprotein performs the opposite role. It acts like a cleanup system by collecting excess cholesterol from your bloodstream and returning it to the liver where it can be recycled or removed. This is why High Density Lipoprotein (HDL) has been labeled the good cholesterol and Low Density Lipoprotein (LDL) the bad cholesterol.
LDL itself is not inherently dangerous and your body produces it for a reason. Problems occur however when LDL particles become damaged, oxidized or excessive, which often happens in an environment of inflammation, insulin resistance and metabolic stress but lowering LDL numbers does not tell the whole story. Several lifestyle and metabolic factors can push your LDL higher or cause it to become problematic.
One of the biggest drivers is insulin resistance. When your body struggles to manage blood sugar, the liver begins producing more lipoproteins including LDL. Highly processed foods and excess sugar contribute significantly and diets high in refined carbohydrates often raise triglycerides and worsen the cholesterol ratios.
Lack of movement is another contributor. Muscles act like metabolic engines that burn fuel and improve lipid metabolism so without regular physical activity your system slows down. Chronic stress also plays a role. Elevated cortisol levels affect how your liver processes fats and cholesterol. Poor sleep, excess alcohol, smoking and chronic inflammation all contribute to unhealthy cholesterol patterns as well.
HDL helps clean up the excess cholesterol and moves it back to the liver. Research suggests that higher HDL levels are generally associated with lower cardiovascular risk however simply raising your HDL with medications has not consistently improved heart outcomes. This tells us again that the whole system matters more than a single number.
Lifestyle factors that help support healthy levels of HDL include regular exercise, maintaining a healthy weight, eating healthy fats and avoiding chronic metabolic stress.
Triglycerides are another type of fat circulating in the bloodstream. They often receive far less attention than cholesterol but they are extremely important. Triglycerides rise when your body converts excess calories, especially sugar and refined carbohydrates, into stored fat. High triglycerides are strongly associated with insulin resistance, metabolic syndrome and increased cardiovascular risk. When triglycerides climb and HDL drops, it often signals a metabolic problem long before LDL levels become concerning.
Many doctors now focus less on individual cholesterol numbers and more on the ratios because they give a clearer picture of metabolic health. One of the most useful is the triglyceride to HDL ratio. Simply divide triglycerides by HDL. A ratio under 2 is considered excellent, under 3 is acceptable and above 4 suggests insulin resistance and increased cardiovascular risk.
Another helpful marker is the total cholesterol to HDL ratio. Ideally this number should fall below 4 and many experts prefer it closer to 3. These ratios importantly provide better insight into how well your body is managing fats and energy.
Cardiovascular disease is influenced by many factors beyond cholesterol numbers. Inflammation, blood sugar regulation, body composition, stress levels, sleep quality and movement patterns all play a role.
This is why a person with slightly elevated LDL but excellent metabolic health may have a lower risk than someone with normal cholesterol but high triglycerides, low HDL and insulin resistance.
When we look at health through the LighterLiving lens of Eat, Move and Feel, cholesterol becomes less frightening and more understandable.
Eat foods that nourish your metabolism rather than overwhelm it.
Move your body in ways that build muscle and circulation. Strength building exercise like Aeropilates which strengthens both large and small muscles while improving circulation and metabolic efficiency, dramatically improves how your body handles glucose and fats.
Feel your way towards balance by managing stress and honoring sleep and recovery.
Cholesterol is not your enemy, it is a messenger telling you how your metabolic system is functioning. When you listen to the message and support your body wisely those numbers often move in the right direction naturally and that, for me, is always the lighter way to live.
written by Marjolein Brugman
Marjolein Brugman is the founder of lighterliving and Aeropilates. “lighterliving is a movement and lifestyle choice we can all make. Let’s make it simple – make one decision a day to be better and watch the small steps lead to big changes. Eat smart, stay active, and you’ll live to feel a lighter life."
