High LDL cannot be lowered by taking vitamins. High LDL may be caused by greasy diet, eating more high protein and high fat food, lack of exercise, mental stress, etc.; it is a kind of lipoprotein particles carrying cholesterol into the peripheral tissue cells, when LDL is excessive, the cholesterol it carries will be accumulated in the artery wall, which is easy to cause atherosclerosis and plaque formation. Vitamins are a class of trace organic substances that must be obtained from food in order to maintain normal physiological function, and have a significant role in human growth, metabolism, and development, but cannot reduce LDL. If LDL is mildly high, it can be lowered by adjusting daily dietary habits, such as eating a light diet, eating more fruits and vegetables; and reasonably increasing the amount of exercise. If the high is more serious, timely medical treatment, should be under the guidance of the doctor to take lipid-lowering drugs, so as not to delay the condition.