Medicinal mushrooms, hugely popular for thousands of years in the Orient, are coming in vogue today also in the West. On the coattails of their increasing popularity follow issues of quality and ethical representation between competing brands.

All medicinal mushroom species are plagued by this. Most fiercely debated is red reishi (Ganoderma lucidum), the most popular of all medicinal mushrooms. So this article will primarily focus on that species, but it’s generally applicable to all species of medicinal mushrooms.

First off, stay clear of cheap, mass-produced medicinal mushrooms. If they are just dried and pulverized, then the medicinal compounds are still inaccessible behind the mushrooms’ cell-walls. You’ll be wasting your money on inert matter.

There are many real therapeutic brands on the market, though. But even among them, there are significant differences. They all claim to be the best, naturally, because they all want to sell their particular brand. So let’s sift the data, get the facts straight, and clear up misleading information that is out there.

Following are the three primary ways of creating reishi extracts. Each method yields different medicinal compounds, all of which are shown in scientific studies to have important properties.

1. Water (Hot) Extraction (polysaccharides, etc.)

2. Alcohol Extraction (triterpenoids, etc.)

3. Fermentation (arabinoxylanes, etc.)

The most important hot water extracted compounds are the polysaccharides. Studies have shown them to possess strong anti-tumor properties, help boost immune system and be powerful antioxidants. [1]

Through alcohol extraction, we get triterpenoids, a large group of lipids with many sub-groups. Research shows triterpenoids help regulate clotting, blood pressure and cholesterol. More importantly, they are the anti-inflammatory compounds that are the reason why reishi often gets recommended for arthritis, asthma and allergies. [1]

Finally, by fermenting the red reishi, the original medicinal compounds break down to form new compounds with unique healing properties. These “secondary metabolites” have among other things been shown to be immune enhancing and help regulate blood sugar, as well as having unique anti-tumor properties. [2]

Since this article is not intended to elevate any one brand over another, no brand names will be mentioned. Nevertheless, the author does know of two highly reputed brands (American and Japanese) that claim only hot water extracted red reishi is of any value and that alcohol extracts are useless.

They do that, of course, because they wish to sell their products. However, there is no scientific validity to those claims. All three extraction methods listed above yield important medicinal compounds.

When looking for the best reishi extract, find one that uses at least the first two extraction methods in combination: Hot Water and Alcohol Extraction. Even better may be a brand that includes all three methods listed.

An additional point to keep in mind is the form the reishi comes in. Reishi that dissolves completely in a water-based liquid such as coffee probably only contains reishi from hot water extraction. As a substitute for regular coffee, this would be a superb health-choice. However, it will not contain the water-insoluble triterpenoids so valued for their anti-inflammatory properties.

Surprisingly, though, alcohol tinctures may include both hot water extract and alcohol extract. You will know if the alcohol tincture contains polysaccharides because when the alcohol and hot water extracts are blended, the polysaccharides fall out of solution and the tincture becomes cloudy. (Just shake it before you take it.) A cloudy medicinal mushroom tincture is an indication of high polysaccharide content. Capsules and tablets may be either hot water extract or alcohol extract or both.

[1] Boh B, Berovic M, Zhang J, Zhi-Bin L. “Ganoderma lucidum and its pharmaceutically active compounds.” Biotechnology Annual Review 2007;13:265-301.

[2] Tang YJ, Zhang W, Zhong JJ. “Performance analyses of a pH-shift and DOT-shift integrated fed-batch fermentation process for the production of ganoderic acid and Ganoderma polysaccharides by medicinal mushroom Ganoderma lucidum.” Bioresource Technology 2009 Mar;100(5):1852-9.

Dr. Rafael has worked in the health field since the early 90’s, currently specializing in medicinal mushrooms. He partners with Davida Sara on premium reishi extract and cordyceps extract plus the newly popular mesima mushroom and more.