L-(+)-Selenomethionine

L-(+)-Selenomethionine    CAS: 3211-76-5

L-Selenomethionine is the predominant food form of selenium with antioxidant activity. L-Selenomethionine has been shown to increase the activity of glutathione peroxidase in endothelial cells. It may be chemoprotective against certain cancers. Nutritional supplements in health care products.

CAS number：3211-76-5

Molecular Formula：C5H11NO2Se

Product Purity：≥98%

Structural Formula:

L-selenomethionine is biologically active in humans and many other life forms. the primary value of L-selenomethionine in nutraceuticals is to provide a bioavailable form of selenium, an essential nutrient. l-selenomethionine may be more readily absorbed than selenite, an inorganic form of selenium that is commonly used in nutraceuticals. A clinical trial showed that L-selenomethionine was absorbed 19% more than selenite.
Selenium plays a critical role in many biochemical reactions, particularly as a cofactor in reducing antioxidant enzymes. l-Selenomethionine oxide is readily oxidized, enabling it to reduce the levels of reactive oxygen compounds. These compounds include free radicals that can cause cellular damage.
The best dietary sources of selenium include grains, legumes and soybeans, with Brazil nuts usually having the highest selenium content. However, the selenium content of plants usually depends more on the amount of selenium in the soil than on the type of plant. Other sources of selenium include fish, crustaceans, organ meats, mushrooms and eggs. The adult human body contains up to 20 milligrams (mg) of selenium, and the minimum daily requirement for selenium for adults is at least 55 micrograms (mcg).

L-Selenomethionine Usage And Synthesis

As a source of selenium, L-selenomethionine has many specific uses. The most common reasons for taking L-selenomethionine in supplements include management of the thyroid, heart, immune system and healthy cholesterol levels.