Polysaccharides—long-chain carbohydrates found in natural sources like mushrooms, aloe vera, rice bran, and certain plants—have profound benefits for both the brain and immune system. In this episode, Dr. Scott A. Johnson invites a renowned expert in nutrition and integrative health, Dr. John E. Lewis, to unpack the science behind these powerful compounds. Learn how polysaccharides enhance cognitive function, support immunity, and their potential role in preventing chronic diseases.