Dealing With Cholesterol

Cholesterol is a waxy substance found throughout the body that helps produce cell membranes, hormones, and vitamin D.

The cholesterol in your blood comes from two sources: foods you eat and your liver.
However, your liver makes all of the cholesterol your body needs, so you don't need to take in more from the foods you eat.

Cholesterol and other fats are transported in your bloodstream in the form of spherical particles called lipoproteins.

Types of Cholesterol

The two most commonly known lipoproteins are low-density lipoproteins (LDL) and high-density lipoproteins (HDL).

LDL is commonly called the "bad" cholesterol. It's a type of fat in the blood that contains the most cholesterol. It can contribute to the formation of plaque buildup in the arteries, known as atherosclerosis.

You want your LDL to be low. To help lower it, avoid foods high in saturated fat, dietary cholesterol, and excess calories. Exercise regularly; try aerobic exercise such as brisk walking, cycling, or lap swimming. Maintain a healthy weight, and stop smoking, if you smoke.

HDL is known as the "good" cholesterol. It's a type of fat in the blood that helps to remove cholesterol from the blood, preventing the fatty buildup and formation of plaque.

You want your HDL to be as high as possible. Some people can raise HDL by exercising for at least 20 minutes three times a week, quitting smoking, avoiding saturated fat intake, and decreasing their body weight.

Risk Factors

In some people who already have coronary artery disease and/or who have an increased number of risk factors for coronary heart disease, a doctor may determine that the LDL cholesterol level should be kept lower than 130.

Recent studies have shown that those who are at highest risk for a heart attack should lower their LDL cholesterol level to less than 100, and that an LDL cholesterol level of 70 or less may be optimal for people at the very highest level of risk.

Treatment

Treatment for high cholesterol may focus on modifying your risk factors, such as lack of exercise and poor eating habits. Many people also benefit from cholesterol-lowering medications, which are used to lower lipids (fats) in the blood, particularly LDL.

Statins are a group of antihyperlipidemic medications. Bile acid sequestrants and nicotinic acid are two other types of medications that may be used to reduce cholesterol levels.