In a study, researchers found that mushrooms have high amounts of the ergothioneine and glutathione, both important antioxidants, said the senior author. The researchers also found that the amounts the two compounds Ergothioneine rich Lentinula edodes mushroom extract restores mitochondrial functions in senescent HT22 cells Neuroscience Mushrooms: A rich source of the antioxidants ergothioneine and glutathione ScienceDirect A Mushroom Derived Compound That Could Change Your Life: Ergothioneine