Your body is very good at producing cholesterol. Your liver produces most of the cholesterol in your body, but other organs, such as the intestines or adrenal glands, also contribute. Cholesterol secreted into your intestines tends to be reabsorbed and recycled—about 50% of excreted cholesterol makes it back into your bloodstream.
If your body senses you have high cholesterol, it will lower cholesterol production; if you need more, it will increase production. However, this is not an exact science and sometimes, your body will keep up its own production even with high levels of cholesterol. This can be due to genetics. There are also many diseases that may affect your cholesterol levels. Your liver helps keep your cholesterol balanced. Liver diseases, such as fatty liver disease, cirrhosis, or even viral hepatitis, interfere with your liver’s ability to produce and clear cholesterol, leading to high levels of cholesterol in your blood.