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Shitake Mushrooms
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Shiitake mushrooms are typically found growing naturally on the fallen and decaying broadleaf trees in Japan, China, and other Asian countries. Because of its medicinal applications, shiitake is now cultivated in the United States and throughout the world.
In the wild, shiitake mushrooms are typically found growing on fallen broadleaf trees. Because of its medicinal use, it is now cultivated in the United States and throughout the world in manmade gardens and green houses.
The key chemical ingredient found in the Shiitake mushrooms is a polysaccharide known as lentinan. Shiitake mushrooms also contain constituents including complex carbohydrates, proteins, fats, soluble fiber, vitamins, and essential minerals. A process called lentinus edodes mycelium extract (LEM) which uses a powder called nycelium is the common commercial method for preparing the shiitake for use. LEM is high in lignans and polysaccharides.
Preliminary trails indicate that oral supplementation of shiitake may be useful for people suffering from hepatitis B. Lentinan, the most important constituent of shiitake, is used in Japan in a very purified, intravenous form. It has been reported to increase survival in people with recurrent stomach cancer, especially when used along with chemotherapy. It has also been somewhat useful for people suffering from pancreatic cancer and in treating people with HIV infection. However, there have not been any large-scale clinical trials to confirm these claims.
Dosage Recommendation
Some medical professionals recommended to take 6–16 grams per day of pure shiitake mushroom compounds. It can be taken as a soup by boiling it for 10-20 minutes in water, cooled and strained, or as a decoction. If preferred, taking 1-3 grams of LEM two to three times a day will also provide the desired effect.
In Japan purified lentinan is considered a drug. LEM is unavailable as an herbal supplement in Northern America.
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