Belladonna grows naturally and has medical properties. Also if it is not harvested or prepared just right it can also kill you.
Nutmeg is natural, really tasty and, in the right amount which is much less then you would think, can also kill you.
All I am saying is be careful before you take anything that is not prepared by a professional. Whether it is a doctor or an herbalist.
Nutmeg?
and certainly don’t forget Hemlock weed and any part of the beautiful oleander shrub ...