Comprehensive evaluation of Ganoderma lucidum extracts: digestion kinetics, gut microbiota modulation, and immunoregulatory mechanisms.
Jiang T, Zhu R, Guo X, Li J, Zhu X
Gut Microbiome
Reishi mushrooms you might grow at home or take as a supplement deliver most of their immune benefits through your gut bacteria, not your bloodstream — meaning how you prepare or buy them could dramatically change what they actually do for you.
Reishi mushroom is famous in traditional medicine for supporting the immune system, but there's a catch: when you eat it or take a supplement, your stomach and intestines break down almost all of the beneficial compounds before they can be absorbed. Scientists found that gut bacteria are the real workers here — they transform the leftover mushroom material into compounds that calm inflammation in the colon, including a helpful substance called butyrate. Whether the mushroom was prepared with water or alcohol made a big difference in how all of this played out, which matters for anyone making or buying mushroom-based health products.
Key Findings
Oral bioavailability of Reishi bioactives is less than 10%, with the majority degraded during gastrointestinal transit before reaching systemic circulation
Gut microbiota modulation by unabsorbed mushroom compounds increased colonic butyrate production and shifted the microbial community toward anti-inflammatory profiles
RNA sequencing identified specific immune-regulatory genes suppressed by Reishi extracts in macrophages, with aqueous vs. ethanol extraction methods producing distinct immunological response profiles
chevron_right Technical Summary
Reishi mushroom extracts have long been used medicinally, but less than 10% of their active compounds survive digestion to reach the bloodstream. This study reveals that gut bacteria pick up where digestion leaves off, converting unabsorbed mushroom compounds into anti-inflammatory molecules — and that the extraction method used to prepare supplements significantly shapes this entire process.
Abstract Preview
Ganoderma lucidum (Reishi mushroom) exhibits medicinal-edible functionality mediated by bioactive components such as β-glucans and ganoderic acids that regulate immune responses through multiple pa...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
Was this useful?
Shared Plant-human Biology: Herbicide Effects and New Biomarkers Perspectives.
Herbicides sprayed on your lawn, your food crops, and your local park may be quietly disrupting the same biological machinery in your body — and in the gut b...
Lingzhi, also known as reishi, is a polypore fungus native to East Asia belonging to the genus Ganoderma.