Reishi is a mushroom, making it both a food and a supplement. Has been found to be safe as a food source, but may be toxic at high levels. Some purported but unproven uses include immune stimulation, anti- inflammatory properties, cholesterol- lowering properties and ability to lower high blood pressure. No proven effect on viral infections or fatigue management.
Attention for Liver Disease: May decrease clotting ability. If reishi stimulates the immune system, then theoretically, should be avoided by those with autoimmune hepatitis, primary biliary cirrhosis or other autoimmune diseases; those taking immune suppressants, such as steroids and anti-rejection drugs for liver transplantation; and those using interferon. Because it appears to interact with cytochrome p-450 metabolized substances do not take during HCV treatment.
Safety Information: Very little available safety information. Reports of nausea, vomiting, GI upset, itching, dry nose and dry throat. No safety data available regarding children, pregnant or nursing mothers.
Interactions: May interact with immunosuppressants, anticoagulants and certain chemotherapy agents.
Lab Notes: May alter blood clotting tests results and lower blood pressure readings.
Note: Be sure not to confuse reishi mushrooms with a poisonous variety.