Taking reishi mushroom may be riskier if it has low levels. Taking reishi mushroom may be riskier if you have low blood pressure or if you are taking treatment to raise it, if you are taking medications for diabetes, or if you have immune system disorders or are taking medications. The reishi mushroom has numerous health benefits, but eating too much of it can be harmful to the body. In general, it's best not to take more than 9 mg a day.
If you take a continuous overdose, it can cause a bleeding disorder with unusual bleeding. It can also lower your blood pressure than necessary. Other side effects of reishi mushrooms include dry mouth, rashes, upset stomach, diarrhea, headache, nosebleeds, and dizziness. The safety of reishi mushroom in pregnant and breastfeeding women has not been thoroughly studied.
The reishi mushroom is important in the traditional medicine systems of several countries in Asia, including China, Japan and Korea. According to a review article, reishi mushrooms contain polysaccharides, peptides, and triterpenoids, which may provide some of their health benefits. Reishi mushrooms can be harmful to people who have bleeding problems, are pregnant, or are taking certain medications. This advice also applies to those taking immunosuppressants, as reishi mushroom supplements may counteract their effectiveness.
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. A review of studies found that reishi mushrooms can help boost the immune system, but the authors wouldn't recommend them as a first response to cancer. Reishi mushroom has been used to help improve the immune system, reduce stress, improve sleep and reduce fatigue. In addition, avoid using reishi mushroom if you are pregnant or breastfeeding, because not enough studies have been done on its safety under these circumstances.
The Komen Foundation notes that reishi mushroom extract is possibly safe for up to 1 year when a person takes it orally. Reishi mushrooms are best known for their supposed effects in boosting the immune system and helping to fight cancer. Reishi can slow blood clotting, so combining reishi with drugs that slow clotting (for example, clopidogrel, ibuprofen, naproxen, heparin, and warfarin) could increase the chance of bleeding and bruising. Some people claim that reishi mushrooms can boost the immune system, fight cancer, and alleviate the symptoms of many other health conditions.
People should carefully consider the dangerous side effects mentioned above before trying reishi mushroom supplements. Many people believe that reishi mushrooms provide some health benefits, mainly improving the immune system and treating cancer.