Understanding Cholesterol
The ups and downs of cholesterol management can seem confusing. There are different types of cholesterol to learn about, different goal numbers to reach, and many other variables that can affect managing your cholesterol.
The basics are:
- LDL-C (low-density lipoprotein cholesterol) is the “bad” cholesterol
- HDL-C (high-density lipoprotein cholesterol) is the “good” cholesterol
- Triglycerides make up the largest proportion of fats (lipids) in the diet and in the blood
If your triglycerides and your LDL “bad” cholesterol
are high, but your HDL “good” cholesterol is low,
your doctor may prescribe treatment to control your cholesterol
in addition to
diet and exercise.
Cholesterol
Cholesterol, a waxy, fat-like substance made in the liver, is found in every cell of the body. Cholesterol is needed to produce cell membranes and certain hormones. Because the body makes enough cholesterol to do these things, it’s not necessary to have extra cholesterol in your diet. But cholesterol is in many foods, such as egg yolk, meat, chicken, fish, and dairy products containing “saturated fats.” Excessive intake of saturated fats, which stay solid at room temperature, may further increase your risks of cardiovascular disease. Read about the different types of cholesterol.
Lipoproteins
Fatty cholesterol is not water soluble and does not travel
very easily through blood, which is mostly water. In order
to make moving through the blood easier, cholesterol travels
in little
packages called lipoproteins.
The two types of lipoproteins are HDL and LDL:
- High-density lipoprotein cholesterol — HDL-C — is the “good” cholesterol. A high level of HDL-C is desirable and may decrease heart attack and stroke risk, while a low level may increase these risks.
- Low-density lipoprotein cholesterol — LDL-C — is the “bad” cholesterol. A high LDL-C level can cause cholesterol to build up on the artery walls, increasing the risk for heart attack.
Triglycerides
Triglycerides are the most common form of fat in the body. They are stored in fat cells to be used as energy. They too are made by the body and found in many foods. Elevated levels of triglycerides are also linked to developing heart disease. Learn more about triglycerides.