There are three ways of selenium supplementation, the first way is pharmaceutical selenium supplementation, the second way is food selenium supplementation, and the third way is selenium supplementation by improving lifestyle. Firstly, pharmaceutical selenium supplementation can take yeast selenium and protein selenium preparations to supplement the lack of trace elements selenium in the body. Secondly, because selenium is an antioxidant, it can be an effective antioxidant and prevent cancer, so it is also rich in selenium in certain foods. It is recommended that when supplementing selenium, you can eat more of such foods, such as more eggs, lean meat, garlic, corn, shrimp, oysters, etc. can supplement selenium. Finally, you can also improve your lifestyle, for example, go to bed early, get up early, increase the time of deep sleep, do not stay up late, and sunshine every day can also help selenium digestion and utilization in the body.