Functional mushrooms, also known as adaptogenic mushrooms, are a type of fungi that have various health and nutritional benefits. These mushrooms are widely used in traditional medicine systems such as Ayurveda and Traditional Chinese Medicine (TCM) for their purported medicinal properties. Functional mushrooms are widely used for preventing, alleviating, or treating diseases and/or for their nutritional benefits. Also, functional mushrooms are mainly used in the form of powder or as extracts.