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Maitake (Grifola frondosa)

Proposed Uses: Improve Resistance to Stress; Strengthen Immunity

Other Proposed Uses: Diabetes; Cancer Treatment; High Cholesterol; Hypertension

Maitake is a medicinal mushroom used in Japan as a general promoter of robust health. Like the similarly described reishi fungus, innumerable healing powers have been attributed to maitake, ranging from curing cancer to preventing heart disease. Unfortunately, there hasn't been enough research to determine whether any of these ancient beliefs are true.

Contemporary herbalists classify maitake as an adaptogen, a substance said to help the body adapt to stress and resist infection. However, there is no scientific evidence to show that maitake really functions in this way.

Most investigation has focused on the polysaccharide constituents of maitake. This family of substances is known to affect the human immune system in complex ways, and one in particular, beta-D-glucan, has been studied for its potential benefit in treating cancer. Highly preliminary studies also suggest that maitake may be useful in treating diabetes, hypertension (high blood pressure), and high cholesterol. However, there is no real evidence yet that maitake is effective for these or any other illnesses.

Dosage
Maitake is an edible mushroom that can be eaten as food or made into tea. A typical dosage of dried maitake in capsule or tablet form is 3 to 7 g daily.

Safety Issues
Maitake is widely believed to be safe, although formal safety studies have not been performed. Safety in young children, pregnant or nursing women, or those with severe liver or kidney disease has not been established.

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