Excessive cholesterol intake or low cholesterol consumption can cause high serum cholesterol, and abnormal metabolism of lipids in the body can also cause elevated serum cholesterol.
Excessive cholesterol intake is mainly caused by poor dietary habits, such as eating too many high-calorie or greasy foods, such as fatty meat, animal offal, chicken skin, duck skin, fried foods, pickled foods, puffed foods, and milk and tea drinks. The excessive intake of cholesterol is too late to be converted and absorbed in the body, resulting in elevated serum cholesterol.
The main reason for low cholesterol consumption is that people have too little active exercise, are sedentary and stay up late, etc., which causes elevated serum cholesterol due to the accumulation of body fat.
Abnormalities in lipid metabolism in the body include hypothyroidism, primary aldosteronism, diabetes mellitus, kidney disease, and long-term heavy use of glucocorticoid medications, which also cause disorders of lipid metabolism in the body that can lead to increased serum cholesterol.