Selenium is a micronutrient vital for many processes in the body. This includes maintaining a healthy immune system and plays an important role in normal thryoid hormone metabolism. Selenium also helps maintain male fertility, by promoting sperm motility.
Most soils in the UK and Europe are deficient in selenium, which translates in low-selenium of farmed food and eventually, low selenium status of populations who consume local food.
Selenium is an essential component of the key antioxidant enzyme glutathione peroxidase which works with other antioxidants to protect the cells of the body.
Selenium in the agricultural soil is inorganic. Once it gets absorbed by plants (and ends up in animals) it gets converted to organic selenium. The selenium we get from our diet can be bound to amino acids such as methionine and cystein.
In contrast, selenium in supplements can either be organic or inorganic. It is known that organic selenium compounds have an easier time getting absorbed in the body and incorporated in the different selenium-dependent enzymes and selenoproteins.
Pharma Nord Bio-SelenoPrecise
Our selenium supplement is a patented* selenium preparation containing the organic selenium yeast SelenoPrecise.
More than 40 scientific studies have been published having dealt with the quality, the stable 81% selenium content, the high level of bioavailability, and the safety of SelenoPrecise. This is what makes the preparation an extremely well-documented selenium source. Also, it is the main reason why SelenoPrecise is used in scientific studies and research projects worldwide.

Graph: Based on Larsen EH, et al. J AOAC Int. 2004. The content of various organic selenium compounds in Pharma Nord's selenium yeast is stable at each new production. In this study it is shown with the selenium compound selenomethionine.
Selenium Sources
Our selenium supplement, Bio-SelenoPrecise contains many different selenium sources because each type of selenium has different functions in the human body. By supplying a wide spectrum of selenium types it is possible to emulate the natural variety of selenium types found in food containing selenium.