Hello,
Although I don't readily know the answer to this, a quick look on the internet suggests that they are and have been used this way for a long time in Chinese natural medicine practices.
Here is one of many links I came across with this information.
Hope it helps! https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3155102/
Thanks for checking out my post!
Hello,
Although I don't readily know the answer to this, a quick look on the internet suggests that they are and have been used this way for a long time in Chinese natural medicine practices.
Here is one of many links I came across with this information.
Hope it helps!
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3155102/
Thanks for checking out my post!