What is cholesterol?

First, let’s get back to basics. “cholesterol is a waxy substance found in our blood and it has several important functions,” says dr Judith holmes, who runs a private gP practice at spire Parkway hospital in solihull. it’s responsible for making vitamin d and creating hormones, and is also used to create bile, which helps to break down the fats you eat. “however, too much of it in the bloodstream can lead to an increased risk of heart attack and stroke. common causes are poor diet, smoking and lack of exercise,” says dr Judith.