Low HDL refers to hyperlipidemia in which the body has excess triglyceride fat factor content in the human body, probably due to the excessive intake of fat components in the individual’s daily dietary life, resulting in excess fat factor content in the peripheral blood circulation in the body. Coupled with the increased pressure on the body’s own liver to metabolize fats, the HDL content is insufficient to transfer the fat factor in the peripheral blood in a timely manner. At the same time, the increasing level of LDL in the human body can also lead to the symptoms of low HDL in the human body. In addition, this condition may also be due to a lack of folic acid in the body, and a lack of various vitamins may lead to an imbalance in the acid-base balance in the body, resulting in the symptoms of secondary low HDL, which can easily lead to hyperlipidemia and increase the risk of cardiovascular disease in the human body.