Selenium yeast is a dietary supplement that contains selenium, an essential mineral that plays a crucial role in various bodily functions. It is produced by fermenting Saccharomyces cerevisiae, a type of yeast, in a selenium-rich medium.

Selenium is a powerful antioxidant that helps protect cells from damage caused by free radicals and oxidative stress. It also supports the immune system, thyroid function, and reproductive health, and may have anti-inflammatory properties