Clown world: Don't do your own science or medicine
Mfs included comfrey on this...
https://www.washingtonpost.com/wellness/2023/02/06/kava-lobelia-supplements-to-avoid/
Discussion
Big Pharma can't sell you expensive medications if you get healthy through cheap natural means (diet, exercise, natural medicine, etc). Naturally their paid shills will tell you to steer clear of anything not prescribed by a "doctor".
Jeez, substances that have healed people for centuries are bad, but brand new injectable snake oil is safe and effective.
Well, of course, can't grow injectable snake oil in your own backyard. Can't have the plebs thinking they can heal themselves, they might realize they don't need the system and get uppity