A Note on Mushroom Nutraceuticals in Mnires Disease[v1] Preprints.org Ergothioneine: An Antioxidative, Neuroprotective and Anti Inflammatory Compound from Mushroom Residuals Dried porcini mushrooms are sources of the antioxidants glutathione (GSH) and ergothionine (ERGO) 40g. Ergothioneine Mushroom Complex with Organic Maitake, Organic Oyster, Organic Lion's Mane Mushroom Extracts and L Ergothioneine, 90 Veggie Capsules Mushrooms are full of antioxidants that may have anti aging potential Penn State University 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.