One Large egg contains 213 mg cholesterol.
Cholesterol is a fat-like substance found in every living cell in the body. It is made in necessary amounts by the body and is stored in the body. It is especially concentrated in the liver, kidney, adrenal glands and the brain. Cholesterol is required for the structure of cell walls, must be available for the body to produce vitamin D, is essential to the production of digestive juices, insulates nerve fibers and is the basic building block for many hormones. In other words, cholesterol is essential for life.
Your body produces all the cholesterol it needs. Most of the cholesterol found in the blood and tissues come from this internal synthesis. However, dietary excesses —too many calories, too much fat and saturated fat and high intakes of cholesterol—may increase the level in the blood. Saturated fat has the greatest influence on raising blood cholesterol.
Dietary cholesterol, found in all foods from animals, does not automatically raise blood cholesterol levels. Generally the body compensates for dietary cholesterol by synthesizing smaller amounts in the liver, by excreting more or by absorbing less.
Elevated blood cholesterol does increase the risk of heart disease. You should know your blood cholesterol level and follow your doctor's advice if it is elevated. In a blood cholesterol-lowering diet, cutting down on fat and saturated fat is the most important change you can make. Although egg yolks are usually restricted, it is rarely necessary to avoid them completely, and egg whites can be used freely.
Despite rumors to the contrary, eggs laid by Aracauna fowl, eggs laid by free-running hens and fertilized eggs do not contain less cholesterol than regular supermarket eggs. Cooking does not affect the cholesterol content of eggs. ~see Fat