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Cholesterol, good or bad what does it do in the body?




What is cholesterol?

Cholesterol is a type of lipid (fat) that is essential for the normal functioning of the body. It is a crucial component of cell membranes and plays a role in hormone production, vitamin D synthesis, and bile acid production for digestion. Cholesterol is produced by the liver. Yes, it is also in foods. Most of the cholesterol that hurts vessels comes from the Liver.


Cholesterol is a scary naughty word most fear. We are told if it is an imbalance we are in trouble of heart attack and that we need to keep it low. This cholesterol is the cholesterol that is released to repair the damage done to the vessel walls. But when we shut off the production of cholesterol no one seems to be considering that we are stopping healthy production. We don't seem to realize the benefits of cholesterol and most don't realize there are any benefits to it.


Cholesterol is a precursor for the synthesis of various hormones in the body. Some of the hormones that are synthesized from cholesterol include:

  1. Steroid hormones: Cholesterol serves as the precursor for steroid hormones such as cortisol, aldosterone, estrogen, progesterone, and testosterone. These hormones are essential for regulating metabolism, immune function, stress response, salt and water balance, sexual development, and reproductive function.

  2. Vitamin D: Cholesterol is converted into vitamin D through a series of chemical reactions that occur in the skin when it is exposed to sunlight. Vitamin D is crucial for maintaining healthy bones and teeth, supporting immune function, and regulating mood.

  3. Bile acids: Cholesterol is also used in the synthesis of bile acids, which are essential for the digestion and absorption of fats and fat-soluble vitamins in the small intestine.

Without an adequate supply of cholesterol, the body would not be able to produce these important hormones and bile acids, which are essential for various physiological functions. Do we discuss how to support this when we are blocking and reducing cholesterol?


Cholesterol plays several roles in immune function:

  1. Cell membrane integrity: Cholesterol is a key component of cell membranes, helping to maintain their integrity and fluidity. This is essential for the proper functioning of immune cells such as lymphocytes, macrophages, and neutrophils. These cells rely on cholesterol-rich membranes for processes such as cell signaling, receptor function, and cell-cell interactions.

  2. Inflammatory response: Cholesterol is involved in the synthesis of inflammatory mediators such as prostaglandins and leukotrienes, which are important for initiating and regulating the immune response to infections and injuries.

  3. Antimicrobial properties: Cholesterol can also have direct antimicrobial effects. Some studies have shown that cholesterol can disrupt the integrity of bacterial cell membranes, making them more susceptible to antimicrobial agents and immune attacks.

  4. Regulation of immune cell function: Cholesterol metabolism and transport pathways can influence the function of immune cells. For example, high-density lipoprotein (HDL) cholesterol has been shown to have anti-inflammatory effects and can help regulate immune cell activity.

  5. Vitamin D synthesis: As mentioned earlier, cholesterol is a precursor for the synthesis of vitamin D, which plays a crucial role in immune function. Vitamin D helps regulate the immune response to infections and modulate the activity of immune cells.

Overall, cholesterol is essential for maintaining the proper function of the immune system.


Do we now realize how important it is to the health of the body to have cholesterol? Is there no other way to support healthy levels without shutting the body down? I will dicuss in the next blog factorts that impact cholesterol and what we can nutritionally look at to support healthy levels.





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