“Oyster Mushroom?”Here!
Hasn’t appeared in a scanned product yet.
As a supplement
Talk to your doctor or pharmacist.
Roll Call does not check drug interactions or assess personal safety.
Pleurotus ostreatus, an edible mushroom sold fresh, dried, or as a powdered extract for use in supplements.
Why it’s used
Taken for general nutritional support, or with the hope of supporting immune function or cholesterol levels.
What the evidence says
Human clinical research on oyster mushroom as a supplement is sparse. Some small studies and animal research have examined effects on cholesterol and antioxidant markers, but the evidence base is preliminary and has not been confirmed in larger, well-controlled human trials.
Where we looked
There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.
- PubMed: 113 records · searched September 2026
"Oyster Mushroom"[Title/Abstract] AND (review[pt] OR "safety assessment"[Title/Abstract] OR "risk assessment"[Title/Abstract] OR toxicology[Title/Abstract] OR toxicity[Title/Abstract] OR characterization[Title/Abstract] OR characterisation[Title/Abstract]) - PubMed: 4 records · searched September 2026
"Oyster Mushroom"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH] - PubMed: 701 records · searched September 2026
"Oyster Mushroom"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Most available research has used animal models or small uncontrolled human studies, limiting what can be concluded about effects in general use.
Rumors
Oyster mushroom extract supports the immune system.
Supports — suggestivehealth and safety evidence
Studied in: children with recurrent respiratory tract infections (RRTIs).
Measured as an outcome.
- Novel Chewable Pleuran-Based Supplement Decreases Respiratory Tract Infections in Children: A Randomised Controlled Trial (Peer-reviewed) · Funded by PLEURAN, s.r.o. (industry) · No conflicts declared
Who’s saying this
- Etsy — a platform — posts are by its users: online marketplace where independent sellers sell handmade, vintage and creative goods
How we know who this is
- “Etsy is the global marketplace for unique and creative goods.” (their page)
Oyster mushroom extract kills cancer cells.
Supports — suggestivehealth and safety evidence
Measured as a biomarker.
- Pleurotus ostreatus inhibits proliferation of human breast and colon cancer cells through p53-dependent as well as p53-independent pathway (Peer-reviewed) · Funded by Methodist Research Institute; Indiana University-Purdue University pilot 2007 grant
- Oyster mushroom (Database) · Funding not checked
Who’s saying this
- HealthUnlocked — a platform — posts are by its users: health communities social network; offers research and clinical trial participation opportunities
How we know who this is
- “HealthUnlocked brings together supportive communities, shared experiences, and opportunities to take part in health research.” (their page)
Oyster mushroom lowers cholesterol because it contains natural lovastatin (a statin).
Does not support — suggestivehealth and safety evidence
Studied in: adults with moderately elevated LDL-cholesterol concentrations.
Measured as a biomarker.
- Effects of regular consumption of a β-glucan-rich oyster mushroom powder on cholesterol metabolism in adults with moderately elevated LDL-cholesterol concentrations: a double-blind randomized controlled trial (Peer-reviewed) · Funded by University of Bonn (mushroom powder gifted by Wohlrab, Entrischenbrunn) · No conflicts declared
- Pleurotus fungi produce mevinolin, an inhibitor of HMG CoA reductase (Peer-reviewed) · Funding not checked
Who’s saying this
- biochron.net — we couldn’t open the site to see who runs it
Oyster mushroom helps manage diabetes by lowering blood sugar.
Supports — suggestivehealth and safety evidence
Studied in: adults with type 2 diabetes, dyslipidemia, hypertension, or impaired glucose tolerance.
Measured as a biomarker.
- Effect of the Intake of Oyster Mushrooms (Pleurotus ostreatus) on Cardiometabolic Parameters—A Systematic Review of Clinical Trials (Peer-reviewed) · Funded by Ministry of Innovation, Science and Research of North Rhine-Westphalia (MIWF), FH-STRUKTUR program (government) · No conflicts declared
- Oyster mushroom (Database) · Funding not checked
Who’s saying this
- Antioxi — a brand: sells mushroom supplements
How we know who this is
- “Chicago base: We registered Antioxi LLC and officially became operational in Chicago , building a stronger foundation for the US long game.” (their page)
- “Each batch of our mushroom supplements undergoes stringent third-party testing to verify its purity and safety, maintaining our commitment to excellence.” (their page)
Oyster mushroom supplements can interact with statin drugs and raise the risk of muscle side effects.
Not gradedhealth and safety evidence
Sources cited — no verdict reached.
What was measured is not yet noted.
- Oyster mushroom (Database) · Funding not checked
Who’s saying this
- biochron.net — we couldn’t open the site to see who runs it