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For two millennia, medicinal mushrooms have been mainstream in Asia. Now, America is taking notice and interest is rapidly “mushrooming.” With the sprouting of this new industry follows issues of ethical quality claims between competing brands.

This information applies to all species of medicinal mushrooms. For practical purposes, this article will focus on the most popular medicinal mushroom species, red reishi (Ganoderma lucidum), over which the most intense battle of conflicting claims is being fought.

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.

But even among the truly effective therapeutic brands, which are plentiful, there are important differences. Each seems to claim superiority over other brands, not surprisingly, because why else would anyone buy them? This article aims to clarify the confusion of conflicting and sometimes 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. Fermented (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]

The alcohol soluble compounds are mainly triterpenoids, a large group of related compounds. Scientific studies suggest they help stabilize cholesterol, blood pressure and clotting. Most importantly, they are the anti-inflammatory compounds so critical to many of reishi’s suggested uses, including arthritis, allergies and asthma. [1]

Less researched are the “secondary metabolites” that come from fermenting reishi. “Secondary” because they result when the original medicinal compounds get broken down by bacteria. These new compounds have been shown to possess therapeutic properties that are unique, including immune enhancement, anti-tumor and blood-sugar regulation. [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.

Naturally, the reason they say so is because they want to sell their own brand. However, those statements are scientifically untrue. Hot water and alcohol extractions both contain critical 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.

Last but not least, remember to look at the form the reishi comes in. If the reishi is able to dissolve completely in water-based drinks like coffee, it’s a safe bet that it only contains the water-soluble polysaccharides. An excellent choice as far as coffee goes but an incomplete reishi supplement because it does not include the anti-inflammatory triterpenoid compounds.

Alcohol tinctures, on the other hand, are well worth considering because they may be a blend of water and alcohol extracts. The way to tell is if the tincture is cloudy. When water-soluble polysaccharides get mixed with alcohol, they fall out of solution. Cloudiness in an alcohol tincture indicates high polysaccharide content. Just shake before taking. Tablets and capsules can contain hot water extract, alcohol extract or both. You need to find out from the manufacturer.

[1] Boh B, Berovic M, Zhang J, Zhi-Bin L, 2007. “Ganoderma lucidum and its pharmaceutically active compounds.” Biotechnology Annu Rev 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.

Related posts:

1. Reishi Hot Water Extract vs. Alcohol Extract
2. Selecting the Best Medicinal Mushroom Extract
3. Medicinal Mushroom Hot Water Extract vs. Alcohol Extract
4. Medicinal Mushroom Alcohol Extract vs. Hot Water Extract
5. Using Reishi Extract with Arthritis