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Cholesterol Overview

Types of Cholesterol

Friday, 10 July 2009 16:16

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Cholesterol and other fats can’t dissolve in the blood so they have to be transported to and from cells by special carriers called lipoproteins. The two main ones are LDL and HDL as well as Lp(a) and triglycerides.

Lipoprotein (LDL)

Low density lipoprotein (LDL) ‘bad’ cholesterol, is the body’s main cholesterol carrier and if there’s too much, it’s released into tissues with other substances which build on artery walls leading to the heart and brain causing atherosclerosis. If you have a high level of LDL cholesterol you will be at an increased risk of heart disease.

High density lipoprotein (HDL)

High density lipoprotein (HDL) ‘good’ cholesterol makes up a quarter of all cholesterol which protects the heart by removing excess cholesterol from plaque build up, taking it back to the liver for excretion. If your levels of HDL are too low this will put you at risk of a stroke.

Lp(a)

Lp(a) cholesterol is a different type of LDL or bad cholesterol which isn’t fully understood but its thought high levels of Lp(a) increases early development of fatty deposits in arteries (atherosclerosis)
Triglycerides are a stored source of energy and another type of fat present in high cholesterol levels. They aren’t deposited on artery walls like cholesterol but are carried on many of the same lipoproteins. Their presence is important in women and people with diabetes.

Last Updated on Friday, 10 July 2009 16:24