It's a substance made in the body. It is also found in some foods. We need some cholesterol for good health, but too much is dangerous. Too much cholesterol in the blood can clog blood vessels carrying blood and oxygen to the heart and brain. Heart attacks can happen when the blood vessels to the heart become blocked, starving the heart of blood.
Strokes can happen if blood vessels to the brain become blocked.
Usually the type of food you eat. They are sometimes listed as 'vegetable oils' on the packets which makes them sound healthy - but this is misleading. Doing regular physical activity is the best way to help keep blood cholesterol at a healthy level. What you eat also makes a difference. Following are some ways to enjoy a healthy diet.