Organic selenium is more biologically available than sodium selenite or sodium selenate, the two inorganic forms of selenium commonly used in the feed industry today. Selenium is an essential trace mineral and is necessary for normal health and productivity in animals.

The addition of supplemental selenium from organic sources can also be used to overcome selenium deficiencies.

Organic selenium is derived from yeast, a single-cell fungi which is capable of utilizing elemental selenium. This form of selenium is natural and rapidly metabolized within the body to yield high bioavailability and retention. In addition, organic selenium sources also reduce the threat of soil and water pollution through fecal discharge. As organic sources are more readily absorbed they are in turn more readily metabolized to support selenium dependent body functions while reducing the threat of selenium toxicity.