“usually” is a very dangerous word. It hides all the times these plants had no effect or a negative effect. Either these plants you speak of are effective and

“usually” is a very dangerous word. It hides all the times these plants had no effect or a negative effect. Either these plants you speak of are effective and their efficacy can be demonstrated repeatedly using trials or they’re not and someone is selling superstition. That’s still a choice between medicine and not medicine.