The nutritional benefits of mushrooms are widely discussed by health aficionados. Despite all of the benefits of consuming mushrooms during meals, however, these advantages pale in comparison to the health-promoting properties of medicinal mushroom supplements. What is known about these supplements includes thousands of years of traditional use in Chinese and Japanese herbal medicine and the modern research spurred by their reputations. From possible immune health-supporting ingredients to athletic performance enhancers, medicinal mushrooms promote good health in all sorts of ways. Here are just a few of the most promising mushroom supplements on the market right now.