Dog Safe Snacks: What Foods Are Rich in Glutathione? Earth Buddy Pet Beta Glucan & Fucoidan Brown Seaweed Extract, L Glutathione, Shiitake, 90 Caps eBay Mushrooms: Savory disease fighters UCI Health Orange County, CA How Functional Mushrooms Can Boost Glutathione Levels Mushrooms are tiny and packed with nutrients. Although the nutrition content varies with its type, they contain plenty of Vitamin A, Potassium, Fiber, and other antioxidants that help in reducing inflammation. #Mushrooms #