Unknown cholesterol may pose greater heart..

A form of cholesterol called oxycholesterol – virtually unknown to the public – may pose the biggest heart disease risk, a new study has found.

Most health-conscious people know that high levels of total cholesterol and LDL cholesterol (the so-called ‘bad’ cholesterol) can increase the risk of heart attacks.

But in a new study, scientists from China have found that another form of cholesterol, known as oxycholesterol, can actually increase total cholesterol levels and promote atherosclerosis (hardening of the arteries).

“Total cholesterol, LDL cholesterol, and the heart-healthy HDL cholesterol are still important health issues,” the researchers said.

“But the public should recognise that oxycholesterol is also important and cannot be ignored.”

High levels of oxycholesterol can be found in fried and processed foods, particularly fast-food.

Avoiding deep-fried foods and eating a diet that is rich in fresh fruits and vegetables may help reduce levels of oxycholesterol in the body, the researchers said.

The study was presented this week at the National Meeting of the American Chemical Society.

Heart disease continues to be the leading cause of death in Ireland. Experts say that adults should have their cholesterol levels measured by a healthcare professional at least once every five years.

[Posted: Sat 22/08/2009]