Mushrooms (especially porcini) contain the highest levels of 2 powerful antioxidants, ergothioneine and glutathione, the latter of which is sometimes called the mother of all antioxidants and is a very important bodily Ergothioneine Mushrooms: Antioxidant Gold Mines Om Mushroom Superfood The nutritional benefit of mushrooms is remarkable. For centuries, mushrooms have been legendary for their nutritional value. But it's only been recently that mushrooms have been studied and their true power revealed. Ergothioneine as a promising natural antioxidant: bioactivities, therapeutic potential, and industrial applications Food & Function (RSC Publishing) DOI:10.1039 D5FO02337H A review on mushrooms as a versatile therapeutic agent with emphasis on its bioactive constituents for anticancer and antioxidant potential