First of all, I would like to ask you what did you eat yesterday? Please recall them. Do you remember? If you had such fatty food as well, you may regret having taken such cholesterol rich food. because we are often told that cholesterol is bad for health. But to our surprise, about 70 to 80 percent of cholesterol in our body is biosynthesized in our own cells, especially in the liver. Only the remaining 20 to 30 % derives from food. No matter how hard you try to keep away from cholesterol, still, it is made in your own body. When you take much cholesterol, your body controls the amount of cholesterol by lowering its biosynthesis. There exists an elaborate regulatory system. but we should understand and be conscious about how the cholesterol in our body is managed. Anyway, why does the liver make such a high amount of cholesterol? And why does there exist such a regulatory system exist? because cholesterol is very important for the human body.