Reishi Mushroom (Ganoderma lucidum) Fruiting Body Extract
REISHI MUSHROOM COMMON NAME
Reishi | Lingzhi | Ganoderma
TOP BENEFITS OF REISHI MUSHROOM
Supports general immune health*
WHAT IS REISHI MUSHROOM?
Ganoderma lucidum is considered the “mushroom of immortality” and called Reishi in Japanese—this is the name it’s most known as in America—and Lingzhi in Chinese. In Traditional Chinese Medicine, it is considered to be a shen tonic. Shen tonics were believed to play roles in supporting peace of mind, joy, emotional balance, optimism, sound sleep, and clear thinking. Reishi’s traditional uses, which included replenishing Qi, easing and centering the mind, increasing resistance to fatigue, promoting well-being, and supporting sleep, are consistent with this role as a shen tonic. It was thought to be ideal for countering restlessness and quieting an overactive mind. In addition to these traditional uses, modern research on reishi mushrooms has focused on immune system support and rejuvenating processes, including stem cell function.*
Reishi extracts contain a variety of compounds, most notably, polysaccharides (including beta glucans), peptidoglycans, and triterpenoid compounds (including lucidenic acids). Reishi also contains low amounts of nucleosides (adenosine, cytidine, guanosine, inosine, thymidine, uridine), nucleotide bases (adenine, guanine, hypoxanthine, thymine and uracil), and the neurotransmitter GABA [1–3].
NEUROHACKER’S REISHI MUSHROOM SOURCING
Reishi mushroom extract is from the fruiting body, not the mycelium. The fruiting body is what is usually thought of as the “actual” mushroom, as opposed to the mycelium, which is akin to the “root” system of a mushroom.
Reishi mushroom is concentrated through the extraction process (i.e., grams of mushroom are needed to produce one gram of the extract) resulting in a final extract with not less than 30% polysaccharides, since these compounds are linked to general immune support.
Reishi mushroom is Non-GMO and Vegan.
REISHI MUSHROOM DOSING PRINCIPLES AND RATIONALE
Because reishi is thought of as being an adaptogenic mushroom, we consider dosing to follow hormetic principles similar to herbal adaptogens (see Neurohacker Dosing Principles). Herbal adaptogens tend to have a hormetic zone (or range) where there’s a favorable biological response. It’s important to be in this zone, so our focus with reishi is to provide an amount within this range. When deciding on a dose for a mushroom like reishi, it’s also important to consider the concentration, because more concentrated extracts require lower mg amounts than crude extracts. And finally, it’s important to consider whether the extract is made from fruiting bodies only, or uses mycelium, since the fruiting bodies are the part of a mushroom that concentrates active compounds. Our goal with reishi, as with all ingredient choices, is to select the appropriate dose keeping in mind both the ingredient and the other ingredients being used in a formulation. In other words, if we are also supplying other adaptogen extracts, we are likely to use less reishi than if the only adaptogen we were using was reishi.
REISHI MUSHROOM KEY MECHANISMS
Supports learning and memory [4,5]
Supports sleep [6–13]
Supports neurogenesis [5,14]
Upregulates neural progenitor cell (NPC) proliferation 
Supports brain mitochondrial function [4,15,16]
Supports nerve growth factor (NGF) 
Supports neuroprotective functions [14,17,18]
Supports brain antioxidant defenses [4,15,16]
Supports healthy behavioral and physiological responses to stress 
Supports the composition of the gut microbiota [20–27]
Supports microbial metabolism [21,26,28]
Supports gut immunity [21,27]
Supports intestinal barrier function 
Supports general immune health [29–33]
Supports innate immunity [34–47]
Supports adaptive immunity [36–38,42,45,48–51]
Supports immune signaling [31,38,41]
Healthy aging and longevity
Supports mitochondrial function [15,18]
Supports mitochondrial biogenesis 
Supports autophagy [18,52]
Supports AMPK signaling [18,53]
Supports mTOR signaling [18,52–54]
Supports stem cell proliferation [55,56]
Supports stem cell differentiation 
Supports antioxidant defenses 
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