For thousands of years, practitioners of Eastern Medicine, Native Americans and indigenous cultures have used specific mushrooms for their health benefits. These fungi are often referred to as medicinal mushrooms and like all fungi, contain compounds called beta glucans within their cell walls. Beta glucans provide support for the immune system by activating killer T-cell response to invaders in the body. Other facets of this powerful medicine include anti-cancer properties, antioxidant activity, cardiovascular support (anti-hypertensive and cholesterol-lowering), liver protective, anti-inflammatory, anti-diabetic, and anti-viral and anti-microbial properties.
Mushrooms work synergistically, so a variety are usually blended to provide support to the immune system and natural detoxification. These blends are available in a variety of forms, such as powders, capsules and tinctures. Types of mushrooms you may find in a medicinal blend include:

Cordyceps is used in Traditional Chinese Medicine (TCM) for immune support and to replenish energy. Cordyceps extract is considered the highest class of tonic herbs for balancing the body’s internal systems (Yin and Yang energy).
Lion’s Mane tea has been used in Japanese herbalism; research indicates extracts may protect and support the immune system and play a role in stimulating nerve growth.
Maitake is used in Japanese medicine for supporting immune health and is noted for its antiviral effects. It contains a variety of beta glucans, minerals, and amino acids.
Shiitake supports the health of the liver and the immune system. It contains lentinan, an active compound associated with a healthy immune response. Shiitake also contains minerals, vitamins, and many essential amino acids.
Reishi, “the mushroom of immortality” is used in both TCM and Japanese medicine as a daily tonic for boosting immunity and protecting against cancer and inflammation. Reishi is not an a culinary mushroom because of its tough texture, which makes it difficult to chew.
The best choice of blends can vary from person to person; your holistic health practitioner can determine the best choice of medicinal mushrooms for you.

REFERENCES
Xiaoshuang Dai, Joy M. Stanilka, et al., “Consuming Lentinula edodes (Shiitake) Mushrooms Daily Improves Human Immunity: A Randomized Dietary Intervention in Healthy Young Adults.” J Am Coll Nutr. (2015 Apr) 11:1-10. http://www.tandfonline.com/doi/abs/10.1080/07315724.2014.950391
Ware, Megan. “Mushrooms: Nutritional Value and Health Benefits.” Medical News Today. Posted 23 Feb 2017. Accessed 3 May 2017: http://www.mushroomharvest.com/extra_pages/slideshow.htm
Vaughan, George. “Medicinal Mushrooms” (slide show online) http://www.mushroomharvest.com/extra_pages/slideshow.htm
Bak, Won Chull et al. “Determination of Glucan Contents in the Fruiting Bodies and Mycelia of Lentinula Edodes Cultivars.” Mycobiology (2014) 42:3, 301–304. PMC. Web. 3 May 2017. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4206800/
Friedman, Mendel. “Mushroom Polysaccharides: Chemistry and Antiobesity, Antidiabetes, Anticancer, and Antibiotic Properties in Cells, Rodents, and Humans.” Ed. Charles Brennan. Foods (2016) 5:4, 80. PMC. Web. 3 May 2017. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5302426/
Friedman M. Achenistry, Nutrition and Health-Promoting Propterties of Hericium erinaceus (Lion’s Mane) Mushroom Fruiting bodies and Mycelia and their bioactive Compounds.” J Agric Food Chem. (2015 Aug 19) 63(32):7108-23. Epub 2015 Aug 5. http://pubs.acs.org/doi/abs/10.1021/acs.jafc.5b02914
O’Neil C.E., Nicklas T.A., Fulgoni III V.L., “Mushroom consumption is associated with increased nutrient intakes and better diet quality in adult participants of the National Health and Nutrition Examination Survey (2001–2010).” FASEB J. (2013) 27, Ib350. https://www.omicsonline.org/mushroom-intake-is-associated-with-better-nutrient-intake-and-diet-quality-2155-9600.1000229.pdf
MushroomInfo.com Info on health benefits, research, nutrition. http://www.mushroominfo.com/benefits/

These statements have not been evaluated by the Food and Drug Administration.These products and therapies are not intended to diagnose, treat, cure or prevent any disease. Consult with a healthcare professional before starting any diet, supplement or IV therapy program. American Clinics for Preventive Medicine makes no guarantee or warranty with respect to any products or services sold. This is a preventative exam and not for patients with existing health challenges.