Shiitake Mushroom Extract

Lentinula edodes

Nammex organic Shiitake mushrooms are processed by hot water extraction into a fine powder suitable for encapsulation or beverages.

Beta (1-3),(1-6)-glucansGreater than 30%
StarchLess than 5.0%
Nammex Mushroom Certificates

Nammex Shiitake is 100% Pure Mushroom

No added fillers, starch, grains or mycelium

Shiitake Mushroom History

In the 12th century, shiitake mushroom cultivation began in the mountains of central China. Using fallen trees and then wood logs, early cultivators were able to plant spores and help nature produce a larger crop. A fragrant and delicious edible mushroom, shiitake is now the second most popular cultivated mushroom in the world.

Shiitake Mushroom Uses

In the 1970’s, the Japanese mushroom industry supported extensive research into the nutritional and medicinal properties of shiitake. The scientist Goro Chihara fractionated shiitake polysaccharides and named the most active fraction lentinan, a pure beta-1-3-glucan. This compound was developed into a drug that has been utilized as a complement to modern medical oncological practices. Research has also discovered a compound in shiitake, eritadinine, that has lowered cholesterol in some studies.

Proudly Made in China

In 1996, CEO and Founder of Nammex, Jeff Chilton organized organic mushroom production in China. That initiative paid off and today all Nammex mushrooms are grown or wildcrafted deep in the mountains of China by our Certified Organic production partners. Learn more about our growers in China.

Not All Medicinal Mushrooms Products are Created Equal

US lab-grown Shiitake is mycelium grown on grain. Analysis has shown that US Shiitake mycelium on grain has low levels of beta-glucan and very high levels of starch. Nammex only uses 100% organic fruiting bodies which are rigorously tested and guaranteed for active compounds. Learn more about the mycelia myth and the 10 Questions to Ask about Your Mushroom Supplement.

Active Compounds

Beta (1>3),(1>6)-glucans; eritadinine

Product Attributes

Certified Organic; Kosher; Vegan; Gluten-free; Non-GMO

Shiitake Mushroom Research

  • Wasser S., Shiitake. Encyclopedia of Dietary Supplements. 2005, Marcel Dekker.
  • Chihara, G., Medical Aspects of Lentinan Isolated from Lentinus edodes. Mushroom Biology and Mushroom Products, Proceedings of 1st International Conference, Hong Kong. 1993 Ed. S.T. Chang, J.S. Buswell, S. Chiu.
  • Jong S.C. et al., Medicinal and Therapeutic value of the Shiitake Mushroom. Adv. Appl. Microbiol. 1993; 39:153-84.