[AbiDrew85]

I'm now finding some studies that have demonstrated that certain mutated strains of reishi do end up with tainted coumarins. I'm going to just say now I think reishi is too chancy to risk and put it up in the same category as licorice. Potentially powerful, but too much risk. The only things that MIGHT reduce the risk are how much you trust your supplier to keep their strains pure. Any signs of mutation should be killed off immediately. Even then, we've got the problem of just how much is there compared to the cytotoxic compounds? Is there enough that you can reach medicinal dose without going toxic? I have found nothing conclusive so far and would just recommend not using reishi for NBE purposes. It has other uses due to the mycotoxic compounds that are useful in low doses, but risky in high doses. Coumarin is a compound that requires high doses, which is antithetical to how you would usually use a mushroom product.