There is no optimal time of day for selenium malt to work, selenium malt can be taken at any time of the day. Selenium malt can be used at any time, selenium is an indispensable trace element in the human body, it has a very strong ability to antioxidant. The free radicals in the body with more than one may cause cancer, taking a variety of selenium preparations, the free radicals have a certain scavenging effect. At the same time, we should emphasize that selenium has a certain effect on the regulation of immunity, but the effect of drugs should not be exaggerated, there is clear evidence of selenium deficiency, such as Heilongjiang Keshan disease patients, due to selenium deficiency caused myocardial damage, after supplementation of selenium myocardial damage has been significantly improved, this situation only need to confirm the use of selenium. Malt selenium can also be reasonably complemented with protein, amino acids, mucopolysaccharides and other nutrients, which can regulate the immunity of the body. It has a certain improvement effect on the reduced immunity caused by many symptoms such as poor rest and sleep deprivation.