Amazon.com: Beta Glucan & Fucoidan Brown Seaweed Extract L Glutathione, Shiitake, Agaricus Blazei Mushroom, Vitamin C Immune, Cellular, Healthy Aging Support 90 Capsules, Non GMO, Gluten Free Supplement : Health & Household 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. Nanoencapsulation of Mushroom Derived Bioactives for Targeted Delivery Springer Nature Link Mushrooms are the highest dietary source of ergothioneine and glutathione, two ant oxidants that protect mitochondria from aging. Porcini mushrooms have the highest amount. Mushrooms are full of antioxidants that may have anti aging potential Penn State University A Mushroom Derived Compound That Could Change Your Life: Ergothioneine