Whilst research into the health benefits of mushrooms continues, it’s thought that reishi is generally well tolerated, however some of the research suggests that people may experience minor side effects like nausea or upset stomachs.
11 It’s always important to seek medical advice when considering taking mushroom containing products, if you have an existing medical condition.
A number of short-term clinical studies haven’t found severe adverse effects from the consumption of reishi mushrooms, and whilst long-term effects of taking them on a regular basis haven’t yet been studied, they’ve been consumed for a number of centuries, particular in places such as China and Japan. As their popularity increases, there’s likely to be more longer term scientific studies and data becoming available. Though, as the data is still emerging, it’s a good idea to consider whether using reishi mushrooms is right for you.13
If you’re worried about your health or are experiencing adverse symptoms, it’s essential to visit your doctor. They’ll be able to advise you on the best treatment plan for your needs. It’s especially crucial if you take regular medication or have a pre-existing health condition. You might want to be cautious if you’re pregnant or breastfeeding too.