Reishi mushroom can cause dizziness, dry mouth, itching, nausea, stomach upset, and rash. Other side effects of reishi mushrooms include dry mouth, rashes, upset stomach, diarrhea, headache, nosebleeds, and dizziness. Reishi mushrooms are often dried, ground and powdered and can be found in coffees, teas, powders, or tablets. Reishi mushrooms (Ganoderma lucidum) have been part of some traditional medicine practices for more than 2000 years.
Some people claim that reishi mushrooms can boost the immune system, fight cancer, and alleviate the symptoms of many other health conditions. While the Reishi mushroom has cultural significance, it's important to note that research on how this mushroom specifically affects human health is evolving, but is still limited. Reishi mushrooms are best known for their supposed effects in boosting the immune system and helping to fight cancer. Therefore, people whose doctors have scheduled surgery and people with bleeding disorders should not take reishi mushrooms.
This advice also applies to those taking immunosuppressants, as reishi mushroom supplements may counteract their effectiveness. Small studies with weak designs have also shown that treatment with reishi mushrooms reduces pain and promotes healing of painful varicella zoster Varicella is a highly contagious viral infection caused by the varicella zoster virus that causes a characteristic itchy rash, consisting of small, raised, blistered or crusty spots. Many people believe that reishi mushrooms provide some health benefits, mainly improving the immune system and treating cancer. The reishi mushroom is important in the traditional medicine systems of several countries in Asia, including China, Japan and Korea.
Reishi can lower blood pressure, so taking reishi and medications to lower blood pressure (such as captopril, enalapril, lisinopril, amlodipine, and hydrochlorothiazide) could cause your blood pressure to drop too low. Reishi mushrooms can be harmful to people who have bleeding problems, are pregnant, or are taking certain medications. Many claims that reishi mushrooms promote health are due to anecdotal evidence or cultural uses, rather than rigorous scientific research or exhaustive studies (Wachtel-Galor, 2011). There is also evidence from in vitro and animal studies that reishi mushrooms can help the immune system, but high-quality human studies are needed before researchers draw conclusions.
Reishi mushroom is used for Alzheimer's disease, cancer, diabetes, cold sores, and many other conditions, but there's no strong scientific evidence to support these uses.