Cholesterol is a fatty substance in the blood known as a lipid. It is mostly made by the liver but it can also be found in some foods.
Although being vital for the normal functioning of the body, having excessively high levels of lipids in the blood can have serious health effects. Too much cholesterol in the blood can cause a narrowing of the arteries which may lead to serious heart and brain conditions such as heart attacks and stroke.
Cholesterol is needed to:
- Insulate nerve fibres
- Make up the structure of the membrane of every cell in the body
- Produce bile acids
- Produce hormones