but high levels in the blood circulations and depending on how it is transported within lipoproteins are strongly associated with the progression of atherosclerosis. A person having 150 pounds (68 kg) of weight, his/her typical body cholesterol synthesis could be around 1 g per day, and total content is about 35 gm. It is exercised by the liver via bile into digestive tract, and it is typically about 50 percent of excreted cholesterol that is reagsorbed by small bowel back into blood stream. The cholesterol name originates form Greek chole (bile).

In its functions, cholesterol is required to maintain and build the cell membranes, and it regulates the membrane fluidity over rage of physiological temperature.

Cholesterol is precursor within the cells, molecule is several biochemical pathways, cholesterol is converted to bile in liver, and then it is stored in gallbladder.

It is an important precursor molecule for synthesis of Vitamin D and steroid hormones, including adrenal gland hormones, and aldosterone as well as sex hormones estrogens and their derivatives. All foods contain animal fat containing cholesterol to varying extents. Cholesterol is not present in plant based foods unless it is been added during food's preparation. Chang in diet may help to reduce cholesterol of blood in addition to other lifestyle modifications.