Mushrooms are often classified as prebiotics rather than probiotics, with the following distinction: Prebiotics: These are non-digestible food ingredients that promote the growth of beneficial microorganisms in the intestines. Mushrooms, especially varieties like Maitake, Shiitake, and Lion's Mane, contain polysaccharides and beta-glucans that may act as prebiotics. These substances are believed by some to promote the growth of beneficial gut bacteria, aiding in the development of a healthy gut microbiome. Probiotics: These are live microorganisms that, when consumed in adequate amounts, provide benefits, primarily by enhancing the gut flora. Probiotics are typically found in fermented foods like yogurt, kefir, sauerkraut, and kimchi, as well as in dietary supplements.