There are studies: https://inym.org.ar/descargar/publicaciones/mate-y-salud/base-de-datos-yerba-mate-y-salud.html https://inym.org.ar/descargar/publicaciones/ma

There are studies: https://inym.org.ar/descargar/publicaciones/mate-y-salud/base-de-datos-yerba-mate-y-salud.html https://inym.org.ar/descargar/publicaciones/mate-y-salud/bas... Also, INYM has codified the procedures regarding analysis procedures.