Safety Profile
Overall safety rating: Safe with Caution
Reishi Side Effects & Safety
This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer
Potential Side Effects
- Mild digestive upset (nausea, bloating) in some users
- Dry mouth and throat
- Dizziness or headache (uncommon)
- Rare: liver toxicity reported with concentrated reishi powders (case reports)
- Nosebleeds or blood-thinning effects at high doses
Drug & Supplement Interactions
- May enhance effects of anticoagulant/antiplatelet medications (reishi inhibits platelet aggregation)
- May lower blood pressure — caution with antihypertensive medications
- May interact with immunosuppressant drugs (stimulates immune function)
- May lower blood sugar — monitor with diabetes medications
- Discontinue 2 weeks before surgery due to blood-thinning effects
Maximum Dose
Do not exceed: 5.4g extract daily (highest dose used in clinical trials)