A new medicinal mushroom from Korea is gaining reputation around the world at record pace. Most commonly known by its Latin name as Phellinus linteus, it is also sometimes referred to as Mesima (Japanese), and rarely by its English name, Black Hoof Fungus.

Common to southern United States and Southeast Asia, Phellinus linteus is a polypore on hardwood trees such as poplar, oak and mulberry. [1]

Most medicinal mushroom species used today in America came to us via China or Japan. Phellinus linteus is a break from this trend, as it first became popular in Korea where it’s commonly used to complement traditional cancer treatment.

From there, the fame of Phellinus linteus has spread across the globe. Doctors all over the world now use it as an immune enhancer [2-11], particularly to prevent cancer metastasis. [5,10,12-17] In addition to Korea, Phellinus linteus is today also increasingly popular in the U.S., Japan, and the Middle East from Turkey to Israel.

It may have all began when a’96 Korean study reported that Phellinus linteus extract exhibited a broader range of immune enhancing and anti-cancer properties than the extracts from other species of medicinal mushrooms. [4]

Years later, American world-renown mycologist Paul Stamets helped deepen our understanding of Phellinus linteus when he published a comparative analysis with the most common medicinal mushroom species: Agaricus blazei, Lion’s Mane, Chaga, Reishi, Maitake and Cordyceps. [18]

In this study, Phellinus linteus turned out to have the most powerful effect on enhancing the activity of macrophages, a type of white blood cell that’s an important part of the immune system. Macrophage activity was increased 5,700% by the Phellinus linteus extract. The dose used was equivalent to 3,750 mg for an average (165 lbs) adult. [18]

It should be noted that macrophages may promote cancer growth as well as fight cancer. The research that has been published about Phellinus linteus extract indicates that it enhances the anti-cancer properties of macrophages. [8,14,19,20]

Three additional papers have been published with reports of patients using Phellinus linteus extract and experiencing “spontaneous” regression:

1. A Japanese article from 2004 reported a “dramatic remission of hormone refractory prostate cancer achieved with extract of the mushroom, Phellinus linteus.” [15]

2. Next out was a Korean article published in 2005, which reported on a patient who “ingested mushroom called Phellinus linteus for one and a half years” before exhibiting “spontaneous regression” of liver cancer and skull metastasis. [17]

3. And then one year later, in 2006, another Japanese article was published on “a case of spontaneous regression of hepatocellular carcinoma with multiple lung metastases.” The 79-year-old patient had been taking an extract of Phellinus linteus Mycelium for a month. When examined by his doctor 6 months later, his tumors had disappeared. [16]

This article is for informational purposes only. It is not intended to diagnose, treat, cure or prevent any disease. The mushroom Phellinus linteus has not been approved by the FDA for medicinal use. Always consult a licensed medical practitioner before using any herb or mushroom medicinally.

Dr. Rafael currently specializes in research on medicinal mushrooms, having worked with natural health since’96. He partners with Cordyceps Reishi Extract, LLC, a business offering premium quality medicinal mushroom products including Phellinus linteus extract. For references to this article, go the Phellinus linteus reference page.