Grifola frondosa
The Dancing Mushroom
100+
Studies Published
D-fraction
Key Extract
3,000+ yrs
Traditional Use
Weight in silver
Historical Value
Maitake — meaning 'dancing mushroom' in Japanese, named because foragers reportedly danced with joy upon finding it — is a large, feathery polypore mushroom that grows at the base of oak, maple, and elm trees. It is both a prized culinary delicacy and a potent source of D-fraction beta-glucans, which have been the subject of extensive immunological research. Maitake is one of the few mushrooms that bridges the gap between gourmet cooking and clinical science.
Maitake has been harvested in the mountainous forests of northeastern Japan for thousands of years. It was so highly valued that feudal lords in Japan's Tohoku region accepted Maitake as a form of tax payment — its weight in silver was not uncommon. In Traditional Chinese Medicine, it was known as 'Hui Shu Hua' and used for spleen and stomach support, as well as to promote overall vitality. Secret foraging locations were passed down through families across generations and closely guarded.
Supports immune system activation through D-fraction beta-glucans
May support healthy blood sugar metabolism
Supports healthy blood pressure within normal range
Promotes metabolic health and weight management
Supports liver function and detoxification
Rich source of culinary nutrition (B-vitamins, minerals, fiber)
Bioactive Compound Profile
A highly purified protein-bound beta-glucan unique to Maitake. Activates macrophages, NK cells, and T-cells through pattern recognition receptor binding.
Complex polysaccharides that form the backbone of Maitake's immune-modulating activity.
A water-soluble fraction studied for its effects on insulin sensitivity and glucose metabolism.
Vitamin D2 precursor. Maitake is one of the richest natural sources when UV-exposed.
A gel-forming beta-glucan with potent macrophage-activating properties unique to the Grifola genus.
Maitake's D-fraction — a purified beta-glucan extract — has been the subject of over 100 published studies, including Phase I and Phase II clinical trials. A 2009 study published in the Journal of Medicinal Food demonstrated that Maitake D-fraction enhanced immune cell activation. Research has also explored Maitake's effects on insulin sensitivity and glucose metabolism, with a 2001 study in Biological & Pharmaceutical Bulletin showing improvements in glycemic markers. Its unique SX-fraction has been studied specifically for metabolic syndrome support.
*These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting any supplement regimen.