Cholesterol is a soft, waxy substance found among the lipids (fats) in the bloodstream and in every cell. Our bodies use cholesterol for form cell membranes and some hormones. Too much cholesterol in the blood, however, may lead to coronary heart disease and or stroke.
Cholesterol does not dissolve in the blood, but is carried to and the cells by special carries called lipoproteins. Low density lipoproteins (LDLS) are the major cholesterol carries in the blood. If too much LDL cholesterol circulates in the blood, it can slowly build up in the arteries feeding the heart and brain, forming plaque that clogs those arteries.
High density lipoproteins (HDL) carry cholesterol away from the arteries and back to the liver, where it is passed from the body, HDL cholesterol is known as “good” cholesterol because a high HDL levels seem to protect against hearts attacks. Exposure to smoke and other toxins appears to lower HDL levels.
People get cholesterol in two ways:
The body, mainly the liver produces cholesterol. The rest comes from eating animals that contain it. Eating saturated fatty acids raises blood cholesterol. So does trans fat. You should limit your average daily cholesterol intake to under 30 milligrams, or less if you have high blood cholesterol.