Why is HDL cholesterol considered “good”?
About one-third to one-fourth of blood cholesterol is carried by high-density lipoprotein (HDL). HDL cholesterol is known as the “good” cholesterol because a high level of HDL cholesterol seems to protect against heart attack. Medical experts think that HDL tends to carry cholesterol away from the arteries and back to the liver, where it is passed from the body. Some experts believe that excess cholesterol is removed from atherosclerotic plaque by HDL, thus slowing the build-up. However, low HDL cholesterol levels (lower than 40 mg/dL) may result in a greater risk for heart disease. What is triglyceride? Triglyceride is a form of fat. It comes from food and is also made in your body. People with high triglycerides often have a high total cholesterol, a high LDL cholesterol and a low HDL cholesterol level. Many people with heart disease also have high triglyceride levels. Several clinical studies have shown that people with above-normal triglyceride levels (greater than or equal to 200