Apparemment ça n'est pas férocement documenté, en tout cas pas de documentation qui traite le mate comme qq chose à part: à chaque fois on se limite à dire "y'a de la caféine dedans"…
J'ai trouvé ça:
Je n'ai pas les compétences pour vérifier le côté scientifique du texte; par contre de part mon expérience et celle de mes amis (à chaque fois qu'un ami en prend pour goûter, il vient m'en parler qq temps après pour me dire à quel point il est surpris) c'est effectivement "la stimulation sans les effets négatifs du café ou du thé".
How it works
In terms of its energising qualities Maté contains Matéine which has the same chemical make up as caffeine, but with the molecules arranged in a different way structurally. Mateine has a unique pharmacology and it is unfair to compare it to caffeine. Matéine appears to possess the best combination of xanthine properties possible. For example, like other xanthines, it stimulates the central nervous system, but unlike most, it is not habituating or addicting. Likewise, unlike caffeine, it induces better, not worse, attributes of sleep. It is a mild, not a strong, diuretic, as are many xanthines. It relaxes peripheral blood vessels, thereby reducing blood pressure instead or raising it as do most xanthines. We also know that it improves physical and mental activity without the typical xanthine-induced depressant after effects.
Dr. Jose Martin, Director of the National Institute of Technology in Paraguay, writes, "New research and better technology have shown that while Matéine has a chemical constituency similar to caffeine, the molecular binding is different. Matéine has none of the ill effects of caffeine."
Horacio Conesa, professor at the University of Buenos Aires Medical School, states, "There is not a single medical contraindication for ingesting Maté. Clinical studies show, in fact, that individuals with caffeine sensitivities can ingest Maté without adverse reactions”.
Le yerba mate mérite-t-il sa place dans les modes SP, à côté du sarrasin et des poêles en fontes?