Waste in the body generally refers to the products of the body’s metabolism, selenium is mainly through the antioxidant effect, so as to achieve the role of the body’s metabolism product discharge. Selenium is an essential trace element in the body, and the liver is one of the organs in the human body that contains the most selenium. Selenium has a certain antioxidant effect and helps maintain the normal physiological function of the immune system. Appropriate intake of selenium may increase the selenium content in the body, prompting an increase in the activity of glutathione peroxidase, which has the effect of protecting the integrity of cell membranes, enhancing the immune function of the body, and helping to prompt the body to discharge metabolites. Studies have shown that a lack of selenium in the body may increase the chances of disease, and common clinical selenium deficiency diseases include Creutzfeldt-Jakob disease, macrosomia, etc., which can seriously jeopardize the health of the patient if relevant treatment measures are not actively taken. Normal people can eat selenium-rich foods such as kelp, mushrooms, eggs and duck eggs in their daily life. If abnormal symptoms occur, you should go to the hospital in time so as to clarify the cause of the disease.