1. DL Methionine has anti-cancer effects. Human selenium deficiency is prone to liver cancer, lung cancer, stomach cancer, esophageal cancer, kidney cancer, prostate cancer, bladder cancer, cervical cancer, and leukemia.

2. DL Methionine has an antioxidant effect. Selenium is the best anti-aging substance. If the body lacks selenium, it will be "no longer young" and will lead to premature aging;

3. DL Methionine can enhance human immunity. Lack of selenium reduces the body's immunity.

4. DL Methioninehas the effect of antagonizing harmful heavy metals. Selenium deficiency is likely to cause symptoms of heavy metal poisoning such as lead, arsenic and cadmium.

5. DL Methionine can regulate the absorption and utilization of vitamin A, vitamin C, vitamin E and vitamin K. Selenium deficiency can cause diseases such as myopia, cataract, retinopathy, fundus diseases, and age-related macular degeneration.

6. DL Methionine has the function of regulating the synthesis of proteins. Lack of selenium can cause protein energy deficiency malnutrition, chromosomal damage and so on.

7. DL Methionine can enhance reproductive function. Lack of selenium can cause the emission of sperm to be blocked, sperm motility is low, deformity occurs, the conception rate is reduced, and the incidence of uterine inflammation is increased.